OBG Management

CASE Heart rate tracing suggests fetal distress

Ms. M. presents for elective induction of labor at 39 weeks’ gestation. During the course of her labor, a Category II fetal heart rate (FHR) tracing is noted, and maternal oxygen is administered as part of the intrauterine resuscitative efforts. Her infant ultimately was delivered vaginally with an arterial cord blood pH of 7.1 and Apgar scores of 5 and 7.

Should intrauterine resuscitation include maternal oxygen administration?

It is a common sight on labor and delivery: An FHR monitoring strip is noted to be a Category II tracing. There may be fetal tachycardia, late decelerations, or perhaps decreased variability. The nurse or physician goes to the laboring mother’s room, checks cervical dilation, changes the patient’s position, and puts an oxygen mask over her face.

The American College of Obstetricians and Gynecologists (ACOG) lists maternal oxygen administration, most commonly at 10 L/min via a nonrebreather face mask, as an intrauterine resuscitative measure for Category II or Category III FHR tracings.¹ Maternal oxygen is used to treat abnormal FHR tracings in approximately half of all births in the United States.² Despite these recommendations and the frequency of its use, however, evidence is limited that maternal oxygenation improves neonatal outcome. In fact, there is emerging evidence of potential harm.

Why use oxygen?

The use of maternal oxygen supplementation intuitively makes sense. We know that certain abnormalities in FHR tracings can signal fetal hypoxia. Left untreated, the hypoxia could lead to fetal acidemia and associated neonatal sequelae. Theoretically, the administration of maternal oxygen should lead to improved fetal oxygenation and improved fetal outcome. This is supported by studies from the 1960s that demonstrate improved FHR tracings after maternal oxygen administration.³

This idea was further supported by studies that demonstrated an increase in fetal oxygen levels when maternal oxygen is administered. Haydon and colleagues evaluated the administration of maternal oxygen in women with nonreassuring FHR tracings.⁴ Their data showed that maternal oxygen administration increased fetal oxygen as measured by fetal pulse oximetry. The lower the initial fetal oxygen levels prior to oxygen administration, the greater the increase.

Despite these findings, evidence for improved neonatal outcomes is lacking.⁵ While heart rate tracings and fetal oxygen saturation may be improved with maternal oxygen supplementation, neonatal morbidity appears to remain unchanged (FIGURE). In fact, newer research suggests potential harm. Although an improved FHR tracing may be comforting to the clinician, the end result may be less so. Given these findings on maternal oxygen supplementation, it is time to break this practice habit.

Maternal cardiovascular effects

Most of the literature on maternal hyperoxygenation focuses on fetal response. Before examining the effects on the fetus, however, we must consider the effect on the mother. Cardiovascular changes occur during and after maternal oxygen administration that should be taken into account.

McHugh and colleagues measured the hemodynamic changes in 46 pregnant and 20 nonpregnant women before, immediately, and 10 minutes after a 30-minute period of high-flow oxygen administration.⁶ While there were no changes in the nonpregnant women’s parameters, in the pregnant women heart rate and stroke volume were decreased after oxygen administration. Additionally, systemic vascular resistance increased and did not return to baseline by 10 minutes postadministration.

Since the purpose of the maternal oxygen administration is to increase oxygen to the fetus, this decrease in cardiac output and increase in systemic vascular resistance is concerning. These results may negate the intended effect of increased oxygen delivery to the fetus.

Continue to: Maternal and fetal oxidative stress...

Maternal and fetal oxidative stress

Assuming that the abnormal FHR tracing in our case patient is actually due to fetal hypoxia, it would seem prudent to increase fetal oxygenation. However, fetal hyperoxygenation may lead to free radical damage that could worsen neonatal outcomes. Oxidative stress, which can be caused by both hypoxia and hyperoxia, can lead to endothelial and cell receptor damage. This is known to contribute to the cerebral damage of hypoxic-ischemic encephalopathy.

In a randomized trial, Khaw and colleagues measured lipid peroxidases as a “free radical footprint” in women undergoing elective cesarean delivery who were administered oxygen or room air.⁷ Maternal and fetal oxygen levels were higher in the oxygen-supplementation group, but lipid peroxidases also were elevated. This finding suggests that the excess oxygen results in free radical formation and potentially negative effects on the neonate.

Although maternal oxygen supplementation frequently is viewed as harmless, this research shows that free radical damage may occur in the mother as well.

Additional research shows that longer durations of oxygen administration are correlated with worsening neonatal outcomes. In a study of liberal versus indicated oxygen use, the average time was approximately 90 minutes.⁸ Use for longer than 176 minutes was associated with lower oxygen levels in fetal blood. A proposed mechanism for this response is placental vasoconstriction thought to protect the fetus from free radical damage.

Again, if the goal is to increase oxygenation, prolonged maternal oxygen supplementation appears to produce the opposite effect.

Fetal acidemia and neonatal morbidity

If a fetus with an abnormal FHR tracing is thought to be hypoxic or acidemic, adding the potentially harmful effects of free radicals could worsen this condition. This is exactly what Raghuraman and colleagues demonstrated in a large prospective cohort analysis.⁹ While there was no difference in neonatal morbidity between those receiving oxygen and those on room air, there was a significant difference among infants with acidemia and hyperoxia. Composite morbidity (mechanical ventilation, hypothermic therapy, meconium aspiration, and death) was significantly increased in neonates with both hyperoxia and acidemia compared with nonacidemic hyperoxic infants.⁹ This is further supported by reports of an increased need for neonatal resuscitation and a fourfold increase in umbilical cord pH of less than 7.2.¹⁰

While intrauterine and extrauterine life certainly differ, these findings align with the pediatric literature that supports neonatal resuscitation with room air rather than 100% oxygen.¹¹ Additionally, the intrauterine environment is relatively hypoxic, which may make free radical damage more severe.

Continue to: Oxygen use during the COVID-19 pandemic...

While high-flow oxygen by mask is not considered an aerosol-generating procedure according to the Centers for Disease Control and Prevention, data are limited regarding the cleaning and filtering of oxygen. It is unknown if high-flow oxygen by mask increases the risk of infectious disease transmission to care providers. Therefore, in the midst of the COVID-19 pandemic, ACOG currently recommends against using supplemental oxygen for Category II and Category III tracings, since the benefits are not well established and the possibility of harm to providers may be increased.¹² Oxygen supplementation still should be used in mothers with hypoxia.

Other intrauterine resuscitation options

Maternal oxygen administration does not appear beneficial for neonatal outcomes, but other methods can be used. An intravenous fluid bolus and lateral positioning of the mother, for example, are both associated with increased fetal oxygenation. Reducing uterine activity by discontinuing oxytocin or cervical ripening agents or by administering a tocolytic also can improve FHR abnormalities. Oxygen use should be reserved for patients with maternal hypoxia.

The bottom line

The liberal use of maternal oxygenation for the management of abnormal FHR tracings should be stopped. Clear evidence of its benefit is lacking, and the real possibility of fetal and maternal harm remains. This may be especially true during the COVID-19 pandemic. ●

CASE Heart rate tracing suggests fetal distress

Ms. M. presents for elective induction of labor at 39 weeks’ gestation. During the course of her labor, a Category II fetal heart rate (FHR) tracing is noted, and maternal oxygen is administered as part of the intrauterine resuscitative efforts. Her infant ultimately was delivered vaginally with an arterial cord blood pH of 7.1 and Apgar scores of 5 and 7.

Should intrauterine resuscitation include maternal oxygen administration?

It is a common sight on labor and delivery: An FHR monitoring strip is noted to be a Category II tracing. There may be fetal tachycardia, late decelerations, or perhaps decreased variability. The nurse or physician goes to the laboring mother’s room, checks cervical dilation, changes the patient’s position, and puts an oxygen mask over her face.

The American College of Obstetricians and Gynecologists (ACOG) lists maternal oxygen administration, most commonly at 10 L/min via a nonrebreather face mask, as an intrauterine resuscitative measure for Category II or Category III FHR tracings.¹ Maternal oxygen is used to treat abnormal FHR tracings in approximately half of all births in the United States.² Despite these recommendations and the frequency of its use, however, evidence is limited that maternal oxygenation improves neonatal outcome. In fact, there is emerging evidence of potential harm.

Why use oxygen?

The use of maternal oxygen supplementation intuitively makes sense. We know that certain abnormalities in FHR tracings can signal fetal hypoxia. Left untreated, the hypoxia could lead to fetal acidemia and associated neonatal sequelae. Theoretically, the administration of maternal oxygen should lead to improved fetal oxygenation and improved fetal outcome. This is supported by studies from the 1960s that demonstrate improved FHR tracings after maternal oxygen administration.³

This idea was further supported by studies that demonstrated an increase in fetal oxygen levels when maternal oxygen is administered. Haydon and colleagues evaluated the administration of maternal oxygen in women with nonreassuring FHR tracings.⁴ Their data showed that maternal oxygen administration increased fetal oxygen as measured by fetal pulse oximetry. The lower the initial fetal oxygen levels prior to oxygen administration, the greater the increase.

Despite these findings, evidence for improved neonatal outcomes is lacking.⁵ While heart rate tracings and fetal oxygen saturation may be improved with maternal oxygen supplementation, neonatal morbidity appears to remain unchanged (FIGURE). In fact, newer research suggests potential harm. Although an improved FHR tracing may be comforting to the clinician, the end result may be less so. Given these findings on maternal oxygen supplementation, it is time to break this practice habit.

Maternal cardiovascular effects

Most of the literature on maternal hyperoxygenation focuses on fetal response. Before examining the effects on the fetus, however, we must consider the effect on the mother. Cardiovascular changes occur during and after maternal oxygen administration that should be taken into account.

McHugh and colleagues measured the hemodynamic changes in 46 pregnant and 20 nonpregnant women before, immediately, and 10 minutes after a 30-minute period of high-flow oxygen administration.⁶ While there were no changes in the nonpregnant women’s parameters, in the pregnant women heart rate and stroke volume were decreased after oxygen administration. Additionally, systemic vascular resistance increased and did not return to baseline by 10 minutes postadministration.

Since the purpose of the maternal oxygen administration is to increase oxygen to the fetus, this decrease in cardiac output and increase in systemic vascular resistance is concerning. These results may negate the intended effect of increased oxygen delivery to the fetus.

Continue to: Maternal and fetal oxidative stress...

Maternal and fetal oxidative stress

Assuming that the abnormal FHR tracing in our case patient is actually due to fetal hypoxia, it would seem prudent to increase fetal oxygenation. However, fetal hyperoxygenation may lead to free radical damage that could worsen neonatal outcomes. Oxidative stress, which can be caused by both hypoxia and hyperoxia, can lead to endothelial and cell receptor damage. This is known to contribute to the cerebral damage of hypoxic-ischemic encephalopathy.

In a randomized trial, Khaw and colleagues measured lipid peroxidases as a “free radical footprint” in women undergoing elective cesarean delivery who were administered oxygen or room air.⁷ Maternal and fetal oxygen levels were higher in the oxygen-supplementation group, but lipid peroxidases also were elevated. This finding suggests that the excess oxygen results in free radical formation and potentially negative effects on the neonate.

Although maternal oxygen supplementation frequently is viewed as harmless, this research shows that free radical damage may occur in the mother as well.

Additional research shows that longer durations of oxygen administration are correlated with worsening neonatal outcomes. In a study of liberal versus indicated oxygen use, the average time was approximately 90 minutes.⁸ Use for longer than 176 minutes was associated with lower oxygen levels in fetal blood. A proposed mechanism for this response is placental vasoconstriction thought to protect the fetus from free radical damage.

Again, if the goal is to increase oxygenation, prolonged maternal oxygen supplementation appears to produce the opposite effect.

Fetal acidemia and neonatal morbidity

If a fetus with an abnormal FHR tracing is thought to be hypoxic or acidemic, adding the potentially harmful effects of free radicals could worsen this condition. This is exactly what Raghuraman and colleagues demonstrated in a large prospective cohort analysis.⁹ While there was no difference in neonatal morbidity between those receiving oxygen and those on room air, there was a significant difference among infants with acidemia and hyperoxia. Composite morbidity (mechanical ventilation, hypothermic therapy, meconium aspiration, and death) was significantly increased in neonates with both hyperoxia and acidemia compared with nonacidemic hyperoxic infants.⁹ This is further supported by reports of an increased need for neonatal resuscitation and a fourfold increase in umbilical cord pH of less than 7.2.¹⁰

While intrauterine and extrauterine life certainly differ, these findings align with the pediatric literature that supports neonatal resuscitation with room air rather than 100% oxygen.¹¹ Additionally, the intrauterine environment is relatively hypoxic, which may make free radical damage more severe.

Continue to: Oxygen use during the COVID-19 pandemic...

While high-flow oxygen by mask is not considered an aerosol-generating procedure according to the Centers for Disease Control and Prevention, data are limited regarding the cleaning and filtering of oxygen. It is unknown if high-flow oxygen by mask increases the risk of infectious disease transmission to care providers. Therefore, in the midst of the COVID-19 pandemic, ACOG currently recommends against using supplemental oxygen for Category II and Category III tracings, since the benefits are not well established and the possibility of harm to providers may be increased.¹² Oxygen supplementation still should be used in mothers with hypoxia.

Other intrauterine resuscitation options

Maternal oxygen administration does not appear beneficial for neonatal outcomes, but other methods can be used. An intravenous fluid bolus and lateral positioning of the mother, for example, are both associated with increased fetal oxygenation. Reducing uterine activity by discontinuing oxytocin or cervical ripening agents or by administering a tocolytic also can improve FHR abnormalities. Oxygen use should be reserved for patients with maternal hypoxia.

The bottom line

The liberal use of maternal oxygenation for the management of abnormal FHR tracings should be stopped. Clear evidence of its benefit is lacking, and the real possibility of fetal and maternal harm remains. This may be especially true during the COVID-19 pandemic. ●

CASE Heart rate tracing suggests fetal distress

Ms. M. presents for elective induction of labor at 39 weeks’ gestation. During the course of her labor, a Category II fetal heart rate (FHR) tracing is noted, and maternal oxygen is administered as part of the intrauterine resuscitative efforts. Her infant ultimately was delivered vaginally with an arterial cord blood pH of 7.1 and Apgar scores of 5 and 7.

Should intrauterine resuscitation include maternal oxygen administration?

It is a common sight on labor and delivery: An FHR monitoring strip is noted to be a Category II tracing. There may be fetal tachycardia, late decelerations, or perhaps decreased variability. The nurse or physician goes to the laboring mother’s room, checks cervical dilation, changes the patient’s position, and puts an oxygen mask over her face.

The American College of Obstetricians and Gynecologists (ACOG) lists maternal oxygen administration, most commonly at 10 L/min via a nonrebreather face mask, as an intrauterine resuscitative measure for Category II or Category III FHR tracings.¹ Maternal oxygen is used to treat abnormal FHR tracings in approximately half of all births in the United States.² Despite these recommendations and the frequency of its use, however, evidence is limited that maternal oxygenation improves neonatal outcome. In fact, there is emerging evidence of potential harm.

Why use oxygen?

The use of maternal oxygen supplementation intuitively makes sense. We know that certain abnormalities in FHR tracings can signal fetal hypoxia. Left untreated, the hypoxia could lead to fetal acidemia and associated neonatal sequelae. Theoretically, the administration of maternal oxygen should lead to improved fetal oxygenation and improved fetal outcome. This is supported by studies from the 1960s that demonstrate improved FHR tracings after maternal oxygen administration.³

This idea was further supported by studies that demonstrated an increase in fetal oxygen levels when maternal oxygen is administered. Haydon and colleagues evaluated the administration of maternal oxygen in women with nonreassuring FHR tracings.⁴ Their data showed that maternal oxygen administration increased fetal oxygen as measured by fetal pulse oximetry. The lower the initial fetal oxygen levels prior to oxygen administration, the greater the increase.

Despite these findings, evidence for improved neonatal outcomes is lacking.⁵ While heart rate tracings and fetal oxygen saturation may be improved with maternal oxygen supplementation, neonatal morbidity appears to remain unchanged (FIGURE). In fact, newer research suggests potential harm. Although an improved FHR tracing may be comforting to the clinician, the end result may be less so. Given these findings on maternal oxygen supplementation, it is time to break this practice habit.

Maternal cardiovascular effects

Most of the literature on maternal hyperoxygenation focuses on fetal response. Before examining the effects on the fetus, however, we must consider the effect on the mother. Cardiovascular changes occur during and after maternal oxygen administration that should be taken into account.

McHugh and colleagues measured the hemodynamic changes in 46 pregnant and 20 nonpregnant women before, immediately, and 10 minutes after a 30-minute period of high-flow oxygen administration.⁶ While there were no changes in the nonpregnant women’s parameters, in the pregnant women heart rate and stroke volume were decreased after oxygen administration. Additionally, systemic vascular resistance increased and did not return to baseline by 10 minutes postadministration.

Since the purpose of the maternal oxygen administration is to increase oxygen to the fetus, this decrease in cardiac output and increase in systemic vascular resistance is concerning. These results may negate the intended effect of increased oxygen delivery to the fetus.

Continue to: Maternal and fetal oxidative stress...

Maternal and fetal oxidative stress

Assuming that the abnormal FHR tracing in our case patient is actually due to fetal hypoxia, it would seem prudent to increase fetal oxygenation. However, fetal hyperoxygenation may lead to free radical damage that could worsen neonatal outcomes. Oxidative stress, which can be caused by both hypoxia and hyperoxia, can lead to endothelial and cell receptor damage. This is known to contribute to the cerebral damage of hypoxic-ischemic encephalopathy.

In a randomized trial, Khaw and colleagues measured lipid peroxidases as a “free radical footprint” in women undergoing elective cesarean delivery who were administered oxygen or room air.⁷ Maternal and fetal oxygen levels were higher in the oxygen-supplementation group, but lipid peroxidases also were elevated. This finding suggests that the excess oxygen results in free radical formation and potentially negative effects on the neonate.

Although maternal oxygen supplementation frequently is viewed as harmless, this research shows that free radical damage may occur in the mother as well.

Additional research shows that longer durations of oxygen administration are correlated with worsening neonatal outcomes. In a study of liberal versus indicated oxygen use, the average time was approximately 90 minutes.⁸ Use for longer than 176 minutes was associated with lower oxygen levels in fetal blood. A proposed mechanism for this response is placental vasoconstriction thought to protect the fetus from free radical damage.

Again, if the goal is to increase oxygenation, prolonged maternal oxygen supplementation appears to produce the opposite effect.

Fetal acidemia and neonatal morbidity

If a fetus with an abnormal FHR tracing is thought to be hypoxic or acidemic, adding the potentially harmful effects of free radicals could worsen this condition. This is exactly what Raghuraman and colleagues demonstrated in a large prospective cohort analysis.⁹ While there was no difference in neonatal morbidity between those receiving oxygen and those on room air, there was a significant difference among infants with acidemia and hyperoxia. Composite morbidity (mechanical ventilation, hypothermic therapy, meconium aspiration, and death) was significantly increased in neonates with both hyperoxia and acidemia compared with nonacidemic hyperoxic infants.⁹ This is further supported by reports of an increased need for neonatal resuscitation and a fourfold increase in umbilical cord pH of less than 7.2.¹⁰

While intrauterine and extrauterine life certainly differ, these findings align with the pediatric literature that supports neonatal resuscitation with room air rather than 100% oxygen.¹¹ Additionally, the intrauterine environment is relatively hypoxic, which may make free radical damage more severe.

Continue to: Oxygen use during the COVID-19 pandemic...

While high-flow oxygen by mask is not considered an aerosol-generating procedure according to the Centers for Disease Control and Prevention, data are limited regarding the cleaning and filtering of oxygen. It is unknown if high-flow oxygen by mask increases the risk of infectious disease transmission to care providers. Therefore, in the midst of the COVID-19 pandemic, ACOG currently recommends against using supplemental oxygen for Category II and Category III tracings, since the benefits are not well established and the possibility of harm to providers may be increased.¹² Oxygen supplementation still should be used in mothers with hypoxia.

Other intrauterine resuscitation options

Maternal oxygen administration does not appear beneficial for neonatal outcomes, but other methods can be used. An intravenous fluid bolus and lateral positioning of the mother, for example, are both associated with increased fetal oxygenation. Reducing uterine activity by discontinuing oxytocin or cervical ripening agents or by administering a tocolytic also can improve FHR abnormalities. Oxygen use should be reserved for patients with maternal hypoxia.

The bottom line

The liberal use of maternal oxygenation for the management of abnormal FHR tracings should be stopped. Clear evidence of its benefit is lacking, and the real possibility of fetal and maternal harm remains. This may be especially true during the COVID-19 pandemic. ●

CASE Pregnant woman with positive Treponema pallidum antibody test

A 30-year-old primigravida at 10 weeks and 4 days of gestation by her last menstrual period presents to your office for her initial prenatal visit. She expresses no concerns. You order the standard set of laboratory tests, including a sexually transmitted infection (STI) screening panel. Consistent with your institution’s use of the reverse algorithm for syphilis screening, you obtain a Treponema pallidum antibody test, which reflexes to the rapid plasma reagin (RPR) test. Three days later, you receive a notification that this patient’s T pallidum antibody result was positive, followed by negative RPR test results. The follow-up T pallidum particle agglutination (TP-PA) test also was negative. Given these findings, you consider:

• What is the correct interpretation of the patient’s sequence of test results?
• Is she infected, and does she require treatment?

Meet our perpetrator

Syphilis has plagued society since the late 15th century, although its causative agent, the spirochete T pallidum, was not recognized until 1905.^1,2T pallidum bacteria are transmitted via sexual contact, as well as through vertical transmission during pregnancy or delivery. Infection with syphilis is reported in 50% to 60% of sexual partners after a single exposure to an infected individual with early syphilis, and the mean incubation period is 21 days.³T pallidum can cross the placenta and infect a fetus as early as the sixth week of gestation.³ Congenital syphilis infections occur in the neonates of 50% to 80% of women with untreated primary, secondary, or early latent syphilis infections; maternal syphilis is associated with a 21% increased risk of stillbirth, a 6% increased risk of preterm delivery, and a 9% increased risk of neonatal death.^4,5 Additionally, syphilis infection is associated with a high risk of HIV infection, as well as coinfection with other STIs.¹

Given the highly infective nature of T pallidum, as well as the severity of the potential consequences of infection for both mothers and babies, primary prevention, education of at-risk populations, and early recognition of clinical features of syphilis infection are of utmost importance in preventing morbidity and mortality. In this article, we review the epidemiology and extensive clinical manifestations of syphilis, as well as current screening recommendations and treatment for pregnant women.

The extent of the problem today

Although US rates of syphilis have ebbed and flowed for the past several decades, the current incidence has grown exponentially in recent years, with the number of cases reported to the Centers for Disease Control and Prevention (CDC) increasing by 71% from 2014 to 2018.⁶ During this time period, reported cases of primary and secondary syphilis in women more than doubled (172.7% and 165.4%, respectively) according to CDC data, accompanied by a parallel rise in reported cases of congenital syphilis in both live and stillborn infants.⁶ In 2018, the CDC reported a national rate of congenital syphilis of 33.1 cases per 100,000 live births, a 39.7% rise compared with data from 2017.⁶

Those most at risk. Risk factors for syphilis infection include age younger than 30 years, low socioeconomic status, substance abuse, HIV infection, concurrent STIs, and high-risk sexual activity (sex with multiple high-risk partners).³ Additionally, reported rates of primary and secondary syphilis infections, as well as congenital syphilis infections, are more elevated among women who identify as Black, American Indian/Alaska Native, and/or Hispanic.⁶ Congenital infections in the United States are correlated with a lack of prenatal care, which has been similarly linked with racial and socioeconomic disparities, as well as with untreated mental health and substance use disorders and recent immigration to the United States.^5,7

Continue to: The many phases of syphilis...

The many phases of syphilis

The characteristic lesion of primary syphilis is a chancre, which is a painless, ulcerative lesion with raised borders and a clean, indurated base appearing at the site of spirochete entry (FIGURE 1). Chancres most commonly appear in the genital area, with the most frequent sites in females being within the vaginal canal or on the cervix. Primary chancres tend to heal spontaneously within 3 to 6 weeks, even without treatment, and frequently are accompanied by painless inguinal lymphadenopathy. Given that the most common chancre sites are not immediately apparent, primary infections in women often go undetected.³ In fact, it is essential for clinicians to recognize that, in our routine practice, most patients with syphilis will not be symptomatic at all, and the diagnosis will only be made by serologic screening.

Following resolution of the primary phase, the patient may enter the secondary stage of T pallidum infection. During this stage, spirochetes may disseminate throughout the bloodstream to infect all major organ systems. The principal manifestations of secondary syphilis include a diffuse maculopapular rash that begins on the trunk and proximal extremities and spreads to include the palms and soles (FIGURE 2); mucosal lesions, such as mucous patches and condyloma lata (FIGURE 3); nonscarring alopecia; periostitis; generalized lymphadenopathy; and, in some cases, hepatitis or nephritis.^1,3

Untreated, about 40% of patients will progress to the tertiary stage of syphilis, which is characterized by gummas affecting the skin and mucous membranes (FIGURE 4) and cardiovascular manifestations including arterial aneurysms and aortic insufficiency.³

Neurologic manifestations of syphilis may arise during any of the above stages, though the most characteristic manifestations tend to appear decades after the primary infection. Early neurosyphilis may present as meningitis, with or without concomitant ocular syphilis (uveitis, retinitis) and/or as otic syphilis (hearing loss, persistent tinnitus).^1,5 Patients with late (tertiary) neurosyphilis tend to exhibit meningovascular symptoms similar to stroke (aphasia, hemiplegia, seizures) and/or parenchymal effects such as general paresis. Tabes dorsalis (manifestations of which include urinary and rectal incontinence, lightning pains, and ataxia) is a late-onset manifestation.^1,3

Congenital syphilis can be subdivided into an early and late stage. The first stage, in which clinical findings occur within the first 2 years of life, commonly features a desquamating rash, hepatomegaly, and rhinitis. Anemia, thrombocytopenia, periostitis, and osteomyelitis also have been documented.⁵ Of note, two-thirds of infants are asymptomatic at birth and may not develop such clinical manifestations for 3 to 8 weeks.³ If untreated, early congenital infection may progress to late manifestations, such as Hutchinson teeth, mulberry molars, interstitial keratitis, deafness, saddle nose, saber shins, and such neurologic abnormalities as developmental delay and general paresis.³

Continue to: Prenatal screening and diagnosis...

Prenatal screening and diagnosis

Current recommendations issued by the CDC and the American College of Obstetricians and Gynecologists state that all pregnant women should be screened for syphilis infection at their first presentation to care, with repeat screening between 28 and 32 weeks of gestation and at birth, for women living in areas with a high prevalence of syphilis and/or with any of the aforementioned risk factors.^3,5 Given that providers may be unfamiliar with the prevalence of syphilis in their area, and that patients may acquire or develop an infection later on in their pregnancy, researchers have begun to investigate the feasibility of universal third-trimester screening. While the cost-effectiveness of such a protocol is disputed, recent studies suggest that it may result in a substantial decrease in adverse maternal and fetal outcomes.^8,9

Diagnostic tests

The traditional algorithm for the diagnosis of syphilis infection begins with a nontreponemal screening test, such as the RPR or the Venereal Disease Research Laboratory test. If positive, these screening tests are followed by a confirmatory treponemal test, such as the fluorescent treponemal antibody (FTA) test or the TP-PA (FIGURE 5).

The “reverse” screening algorithm begins with the FTA and, if positive, reflexes to the RPR. A reactive RPR indicates an active infection, and the patient should be treated. A negative RPR should be followed by the TP-PA to rule out a false-positive immunoglobulin G test. If the TP-PA test result is positive, the diagnosis of syphilis is confirmed (FIGURE 6). It is crucial to understand, however, that treponemal antibodies will remain positive for a patient’s lifetime, and someone who may have been treated for syphilis in the past also will screen positive. Once 2 treponemal tests are positive, physicians should take a careful history to assess prior infection risk and treatment status. A negative TP-PA excludes a diagnosis of syphilis.

Advantages of the reverse screening algorithm. Nontreponemal tests are inexpensive and easy to perform, and titers allow for identification of a baseline to evaluate response to treatment.¹¹ However, given the fluctuation of RPR sensitivity (depending on stage of disease and a decreased ability to detect primary and latent stages of syphilis), there has been a resurgence of interest in the reverse algorithm.¹¹ While reverse screening has been found to incur higher costs, and may result in overtreatment and increased stress due to false-positive results,¹² there is evidence to suggest that this algorithm is more sensitive for primary and latent infections.^8,11,13-15

Given the rise in prevalence of syphilis infections in the United States over the past decade, and therefore a higher pretest probability of syphilis in the population, we favor the reverse screening algorithm in obstetrics, particularly given the risks of adverse maternal and fetal outcomes.

Treating syphilis in pregnancy

Parenteral benzathine penicillin G is the only currently recommended medication for the treatment of syphilis in pregnancy. This drug is effective in treating maternal infection and in preventing fetal infections, as well as in treating established fetal infections.^3,5 Regimens differ depending on the stage of syphilis infection (TABLE). Treatment for presumed early syphilis is recommended for women who have had sexual contact with a partner diagnosed with primary, secondary, or early latent syphilis within 3 months of their current pregnancy.⁵ Any patient with diagnosed syphilis who demonstrates clinical signs of neurologic involvement should undergo lumbar puncture to assess for evidence of neurosyphilis.³ CDC guidelines recommend that patients who report an allergy to penicillin undergo desensitization therapy in a controlled setting, as other antibiotics that have been investigated in the treatment of syphilis are either not appropriate due to teratogenicity or due to suboptimal fetal treatment.^3,5

Syphilotherapy may lead to the Jarisch-Herxheimer reaction, which is an acute systemic reaction to inflammatory cytokines produced in response to lipopolysaccharide released by dying spirochetes.⁵ This reaction is characterized by fever, chills, myalgia, headache, hypotension, and worsening of cutaneous lesions. Preterm labor and delivery and fetal heart rate tracing abnormalities also have been documented in pregnant women experiencing this reaction, particularly during the second half of pregnancy.¹⁶ Prior to the start of treatment, a detailed sonographic assessment should be performed to assess the fetus for signs of early syphilis, including hepatomegaly, elevated peak systolic velocity of the middle cerebral artery (indicative of fetal anemia), polyhydramnios, placentomegaly, or hydrops.^5,7

CASE Resolved

The combination of the patient’s test results—positive FTA, negative RPR, and negative TP-PA—suggest a false-positive treponemal assay. This sequence of tests excludes a diagnosis of syphilis; therefore, no treatment is necessary. Depending on the prevalence of syphilis in the patient’s geographic location, as well as her sexual history, rescreening between 28 and 32 weeks may be warranted. ●

CASE Pregnant woman with positive Treponema pallidum antibody test

A 30-year-old primigravida at 10 weeks and 4 days of gestation by her last menstrual period presents to your office for her initial prenatal visit. She expresses no concerns. You order the standard set of laboratory tests, including a sexually transmitted infection (STI) screening panel. Consistent with your institution’s use of the reverse algorithm for syphilis screening, you obtain a Treponema pallidum antibody test, which reflexes to the rapid plasma reagin (RPR) test. Three days later, you receive a notification that this patient’s T pallidum antibody result was positive, followed by negative RPR test results. The follow-up T pallidum particle agglutination (TP-PA) test also was negative. Given these findings, you consider:

• What is the correct interpretation of the patient’s sequence of test results?
• Is she infected, and does she require treatment?

Meet our perpetrator

Syphilis has plagued society since the late 15th century, although its causative agent, the spirochete T pallidum, was not recognized until 1905.^1,2T pallidum bacteria are transmitted via sexual contact, as well as through vertical transmission during pregnancy or delivery. Infection with syphilis is reported in 50% to 60% of sexual partners after a single exposure to an infected individual with early syphilis, and the mean incubation period is 21 days.³T pallidum can cross the placenta and infect a fetus as early as the sixth week of gestation.³ Congenital syphilis infections occur in the neonates of 50% to 80% of women with untreated primary, secondary, or early latent syphilis infections; maternal syphilis is associated with a 21% increased risk of stillbirth, a 6% increased risk of preterm delivery, and a 9% increased risk of neonatal death.^4,5 Additionally, syphilis infection is associated with a high risk of HIV infection, as well as coinfection with other STIs.¹

Given the highly infective nature of T pallidum, as well as the severity of the potential consequences of infection for both mothers and babies, primary prevention, education of at-risk populations, and early recognition of clinical features of syphilis infection are of utmost importance in preventing morbidity and mortality. In this article, we review the epidemiology and extensive clinical manifestations of syphilis, as well as current screening recommendations and treatment for pregnant women.

The extent of the problem today

Although US rates of syphilis have ebbed and flowed for the past several decades, the current incidence has grown exponentially in recent years, with the number of cases reported to the Centers for Disease Control and Prevention (CDC) increasing by 71% from 2014 to 2018.⁶ During this time period, reported cases of primary and secondary syphilis in women more than doubled (172.7% and 165.4%, respectively) according to CDC data, accompanied by a parallel rise in reported cases of congenital syphilis in both live and stillborn infants.⁶ In 2018, the CDC reported a national rate of congenital syphilis of 33.1 cases per 100,000 live births, a 39.7% rise compared with data from 2017.⁶

Those most at risk. Risk factors for syphilis infection include age younger than 30 years, low socioeconomic status, substance abuse, HIV infection, concurrent STIs, and high-risk sexual activity (sex with multiple high-risk partners).³ Additionally, reported rates of primary and secondary syphilis infections, as well as congenital syphilis infections, are more elevated among women who identify as Black, American Indian/Alaska Native, and/or Hispanic.⁶ Congenital infections in the United States are correlated with a lack of prenatal care, which has been similarly linked with racial and socioeconomic disparities, as well as with untreated mental health and substance use disorders and recent immigration to the United States.^5,7

Continue to: The many phases of syphilis...

The many phases of syphilis

The characteristic lesion of primary syphilis is a chancre, which is a painless, ulcerative lesion with raised borders and a clean, indurated base appearing at the site of spirochete entry (FIGURE 1). Chancres most commonly appear in the genital area, with the most frequent sites in females being within the vaginal canal or on the cervix. Primary chancres tend to heal spontaneously within 3 to 6 weeks, even without treatment, and frequently are accompanied by painless inguinal lymphadenopathy. Given that the most common chancre sites are not immediately apparent, primary infections in women often go undetected.³ In fact, it is essential for clinicians to recognize that, in our routine practice, most patients with syphilis will not be symptomatic at all, and the diagnosis will only be made by serologic screening.

Following resolution of the primary phase, the patient may enter the secondary stage of T pallidum infection. During this stage, spirochetes may disseminate throughout the bloodstream to infect all major organ systems. The principal manifestations of secondary syphilis include a diffuse maculopapular rash that begins on the trunk and proximal extremities and spreads to include the palms and soles (FIGURE 2); mucosal lesions, such as mucous patches and condyloma lata (FIGURE 3); nonscarring alopecia; periostitis; generalized lymphadenopathy; and, in some cases, hepatitis or nephritis.^1,3

Untreated, about 40% of patients will progress to the tertiary stage of syphilis, which is characterized by gummas affecting the skin and mucous membranes (FIGURE 4) and cardiovascular manifestations including arterial aneurysms and aortic insufficiency.³

Neurologic manifestations of syphilis may arise during any of the above stages, though the most characteristic manifestations tend to appear decades after the primary infection. Early neurosyphilis may present as meningitis, with or without concomitant ocular syphilis (uveitis, retinitis) and/or as otic syphilis (hearing loss, persistent tinnitus).^1,5 Patients with late (tertiary) neurosyphilis tend to exhibit meningovascular symptoms similar to stroke (aphasia, hemiplegia, seizures) and/or parenchymal effects such as general paresis. Tabes dorsalis (manifestations of which include urinary and rectal incontinence, lightning pains, and ataxia) is a late-onset manifestation.^1,3

Congenital syphilis can be subdivided into an early and late stage. The first stage, in which clinical findings occur within the first 2 years of life, commonly features a desquamating rash, hepatomegaly, and rhinitis. Anemia, thrombocytopenia, periostitis, and osteomyelitis also have been documented.⁵ Of note, two-thirds of infants are asymptomatic at birth and may not develop such clinical manifestations for 3 to 8 weeks.³ If untreated, early congenital infection may progress to late manifestations, such as Hutchinson teeth, mulberry molars, interstitial keratitis, deafness, saddle nose, saber shins, and such neurologic abnormalities as developmental delay and general paresis.³

Continue to: Prenatal screening and diagnosis...

Prenatal screening and diagnosis

Current recommendations issued by the CDC and the American College of Obstetricians and Gynecologists state that all pregnant women should be screened for syphilis infection at their first presentation to care, with repeat screening between 28 and 32 weeks of gestation and at birth, for women living in areas with a high prevalence of syphilis and/or with any of the aforementioned risk factors.^3,5 Given that providers may be unfamiliar with the prevalence of syphilis in their area, and that patients may acquire or develop an infection later on in their pregnancy, researchers have begun to investigate the feasibility of universal third-trimester screening. While the cost-effectiveness of such a protocol is disputed, recent studies suggest that it may result in a substantial decrease in adverse maternal and fetal outcomes.^8,9

Diagnostic tests

The traditional algorithm for the diagnosis of syphilis infection begins with a nontreponemal screening test, such as the RPR or the Venereal Disease Research Laboratory test. If positive, these screening tests are followed by a confirmatory treponemal test, such as the fluorescent treponemal antibody (FTA) test or the TP-PA (FIGURE 5).

The “reverse” screening algorithm begins with the FTA and, if positive, reflexes to the RPR. A reactive RPR indicates an active infection, and the patient should be treated. A negative RPR should be followed by the TP-PA to rule out a false-positive immunoglobulin G test. If the TP-PA test result is positive, the diagnosis of syphilis is confirmed (FIGURE 6). It is crucial to understand, however, that treponemal antibodies will remain positive for a patient’s lifetime, and someone who may have been treated for syphilis in the past also will screen positive. Once 2 treponemal tests are positive, physicians should take a careful history to assess prior infection risk and treatment status. A negative TP-PA excludes a diagnosis of syphilis.

Advantages of the reverse screening algorithm. Nontreponemal tests are inexpensive and easy to perform, and titers allow for identification of a baseline to evaluate response to treatment.¹¹ However, given the fluctuation of RPR sensitivity (depending on stage of disease and a decreased ability to detect primary and latent stages of syphilis), there has been a resurgence of interest in the reverse algorithm.¹¹ While reverse screening has been found to incur higher costs, and may result in overtreatment and increased stress due to false-positive results,¹² there is evidence to suggest that this algorithm is more sensitive for primary and latent infections.^8,11,13-15

Given the rise in prevalence of syphilis infections in the United States over the past decade, and therefore a higher pretest probability of syphilis in the population, we favor the reverse screening algorithm in obstetrics, particularly given the risks of adverse maternal and fetal outcomes.

Treating syphilis in pregnancy

Parenteral benzathine penicillin G is the only currently recommended medication for the treatment of syphilis in pregnancy. This drug is effective in treating maternal infection and in preventing fetal infections, as well as in treating established fetal infections.^3,5 Regimens differ depending on the stage of syphilis infection (TABLE). Treatment for presumed early syphilis is recommended for women who have had sexual contact with a partner diagnosed with primary, secondary, or early latent syphilis within 3 months of their current pregnancy.⁵ Any patient with diagnosed syphilis who demonstrates clinical signs of neurologic involvement should undergo lumbar puncture to assess for evidence of neurosyphilis.³ CDC guidelines recommend that patients who report an allergy to penicillin undergo desensitization therapy in a controlled setting, as other antibiotics that have been investigated in the treatment of syphilis are either not appropriate due to teratogenicity or due to suboptimal fetal treatment.^3,5

Syphilotherapy may lead to the Jarisch-Herxheimer reaction, which is an acute systemic reaction to inflammatory cytokines produced in response to lipopolysaccharide released by dying spirochetes.⁵ This reaction is characterized by fever, chills, myalgia, headache, hypotension, and worsening of cutaneous lesions. Preterm labor and delivery and fetal heart rate tracing abnormalities also have been documented in pregnant women experiencing this reaction, particularly during the second half of pregnancy.¹⁶ Prior to the start of treatment, a detailed sonographic assessment should be performed to assess the fetus for signs of early syphilis, including hepatomegaly, elevated peak systolic velocity of the middle cerebral artery (indicative of fetal anemia), polyhydramnios, placentomegaly, or hydrops.^5,7

CASE Resolved

The combination of the patient’s test results—positive FTA, negative RPR, and negative TP-PA—suggest a false-positive treponemal assay. This sequence of tests excludes a diagnosis of syphilis; therefore, no treatment is necessary. Depending on the prevalence of syphilis in the patient’s geographic location, as well as her sexual history, rescreening between 28 and 32 weeks may be warranted. ●

CASE Pregnant woman with positive Treponema pallidum antibody test

A 30-year-old primigravida at 10 weeks and 4 days of gestation by her last menstrual period presents to your office for her initial prenatal visit. She expresses no concerns. You order the standard set of laboratory tests, including a sexually transmitted infection (STI) screening panel. Consistent with your institution’s use of the reverse algorithm for syphilis screening, you obtain a Treponema pallidum antibody test, which reflexes to the rapid plasma reagin (RPR) test. Three days later, you receive a notification that this patient’s T pallidum antibody result was positive, followed by negative RPR test results. The follow-up T pallidum particle agglutination (TP-PA) test also was negative. Given these findings, you consider:

• What is the correct interpretation of the patient’s sequence of test results?
• Is she infected, and does she require treatment?

Meet our perpetrator

Syphilis has plagued society since the late 15th century, although its causative agent, the spirochete T pallidum, was not recognized until 1905.^1,2T pallidum bacteria are transmitted via sexual contact, as well as through vertical transmission during pregnancy or delivery. Infection with syphilis is reported in 50% to 60% of sexual partners after a single exposure to an infected individual with early syphilis, and the mean incubation period is 21 days.³T pallidum can cross the placenta and infect a fetus as early as the sixth week of gestation.³ Congenital syphilis infections occur in the neonates of 50% to 80% of women with untreated primary, secondary, or early latent syphilis infections; maternal syphilis is associated with a 21% increased risk of stillbirth, a 6% increased risk of preterm delivery, and a 9% increased risk of neonatal death.^4,5 Additionally, syphilis infection is associated with a high risk of HIV infection, as well as coinfection with other STIs.¹

Given the highly infective nature of T pallidum, as well as the severity of the potential consequences of infection for both mothers and babies, primary prevention, education of at-risk populations, and early recognition of clinical features of syphilis infection are of utmost importance in preventing morbidity and mortality. In this article, we review the epidemiology and extensive clinical manifestations of syphilis, as well as current screening recommendations and treatment for pregnant women.

The extent of the problem today

Although US rates of syphilis have ebbed and flowed for the past several decades, the current incidence has grown exponentially in recent years, with the number of cases reported to the Centers for Disease Control and Prevention (CDC) increasing by 71% from 2014 to 2018.⁶ During this time period, reported cases of primary and secondary syphilis in women more than doubled (172.7% and 165.4%, respectively) according to CDC data, accompanied by a parallel rise in reported cases of congenital syphilis in both live and stillborn infants.⁶ In 2018, the CDC reported a national rate of congenital syphilis of 33.1 cases per 100,000 live births, a 39.7% rise compared with data from 2017.⁶

Those most at risk. Risk factors for syphilis infection include age younger than 30 years, low socioeconomic status, substance abuse, HIV infection, concurrent STIs, and high-risk sexual activity (sex with multiple high-risk partners).³ Additionally, reported rates of primary and secondary syphilis infections, as well as congenital syphilis infections, are more elevated among women who identify as Black, American Indian/Alaska Native, and/or Hispanic.⁶ Congenital infections in the United States are correlated with a lack of prenatal care, which has been similarly linked with racial and socioeconomic disparities, as well as with untreated mental health and substance use disorders and recent immigration to the United States.^5,7

Continue to: The many phases of syphilis...

The many phases of syphilis

The characteristic lesion of primary syphilis is a chancre, which is a painless, ulcerative lesion with raised borders and a clean, indurated base appearing at the site of spirochete entry (FIGURE 1). Chancres most commonly appear in the genital area, with the most frequent sites in females being within the vaginal canal or on the cervix. Primary chancres tend to heal spontaneously within 3 to 6 weeks, even without treatment, and frequently are accompanied by painless inguinal lymphadenopathy. Given that the most common chancre sites are not immediately apparent, primary infections in women often go undetected.³ In fact, it is essential for clinicians to recognize that, in our routine practice, most patients with syphilis will not be symptomatic at all, and the diagnosis will only be made by serologic screening.

Following resolution of the primary phase, the patient may enter the secondary stage of T pallidum infection. During this stage, spirochetes may disseminate throughout the bloodstream to infect all major organ systems. The principal manifestations of secondary syphilis include a diffuse maculopapular rash that begins on the trunk and proximal extremities and spreads to include the palms and soles (FIGURE 2); mucosal lesions, such as mucous patches and condyloma lata (FIGURE 3); nonscarring alopecia; periostitis; generalized lymphadenopathy; and, in some cases, hepatitis or nephritis.^1,3

Untreated, about 40% of patients will progress to the tertiary stage of syphilis, which is characterized by gummas affecting the skin and mucous membranes (FIGURE 4) and cardiovascular manifestations including arterial aneurysms and aortic insufficiency.³

Neurologic manifestations of syphilis may arise during any of the above stages, though the most characteristic manifestations tend to appear decades after the primary infection. Early neurosyphilis may present as meningitis, with or without concomitant ocular syphilis (uveitis, retinitis) and/or as otic syphilis (hearing loss, persistent tinnitus).^1,5 Patients with late (tertiary) neurosyphilis tend to exhibit meningovascular symptoms similar to stroke (aphasia, hemiplegia, seizures) and/or parenchymal effects such as general paresis. Tabes dorsalis (manifestations of which include urinary and rectal incontinence, lightning pains, and ataxia) is a late-onset manifestation.^1,3

Congenital syphilis can be subdivided into an early and late stage. The first stage, in which clinical findings occur within the first 2 years of life, commonly features a desquamating rash, hepatomegaly, and rhinitis. Anemia, thrombocytopenia, periostitis, and osteomyelitis also have been documented.⁵ Of note, two-thirds of infants are asymptomatic at birth and may not develop such clinical manifestations for 3 to 8 weeks.³ If untreated, early congenital infection may progress to late manifestations, such as Hutchinson teeth, mulberry molars, interstitial keratitis, deafness, saddle nose, saber shins, and such neurologic abnormalities as developmental delay and general paresis.³

Continue to: Prenatal screening and diagnosis...

Prenatal screening and diagnosis

Current recommendations issued by the CDC and the American College of Obstetricians and Gynecologists state that all pregnant women should be screened for syphilis infection at their first presentation to care, with repeat screening between 28 and 32 weeks of gestation and at birth, for women living in areas with a high prevalence of syphilis and/or with any of the aforementioned risk factors.^3,5 Given that providers may be unfamiliar with the prevalence of syphilis in their area, and that patients may acquire or develop an infection later on in their pregnancy, researchers have begun to investigate the feasibility of universal third-trimester screening. While the cost-effectiveness of such a protocol is disputed, recent studies suggest that it may result in a substantial decrease in adverse maternal and fetal outcomes.^8,9

Diagnostic tests

The traditional algorithm for the diagnosis of syphilis infection begins with a nontreponemal screening test, such as the RPR or the Venereal Disease Research Laboratory test. If positive, these screening tests are followed by a confirmatory treponemal test, such as the fluorescent treponemal antibody (FTA) test or the TP-PA (FIGURE 5).

The “reverse” screening algorithm begins with the FTA and, if positive, reflexes to the RPR. A reactive RPR indicates an active infection, and the patient should be treated. A negative RPR should be followed by the TP-PA to rule out a false-positive immunoglobulin G test. If the TP-PA test result is positive, the diagnosis of syphilis is confirmed (FIGURE 6). It is crucial to understand, however, that treponemal antibodies will remain positive for a patient’s lifetime, and someone who may have been treated for syphilis in the past also will screen positive. Once 2 treponemal tests are positive, physicians should take a careful history to assess prior infection risk and treatment status. A negative TP-PA excludes a diagnosis of syphilis.

Advantages of the reverse screening algorithm. Nontreponemal tests are inexpensive and easy to perform, and titers allow for identification of a baseline to evaluate response to treatment.¹¹ However, given the fluctuation of RPR sensitivity (depending on stage of disease and a decreased ability to detect primary and latent stages of syphilis), there has been a resurgence of interest in the reverse algorithm.¹¹ While reverse screening has been found to incur higher costs, and may result in overtreatment and increased stress due to false-positive results,¹² there is evidence to suggest that this algorithm is more sensitive for primary and latent infections.^8,11,13-15

Given the rise in prevalence of syphilis infections in the United States over the past decade, and therefore a higher pretest probability of syphilis in the population, we favor the reverse screening algorithm in obstetrics, particularly given the risks of adverse maternal and fetal outcomes.

Treating syphilis in pregnancy

Parenteral benzathine penicillin G is the only currently recommended medication for the treatment of syphilis in pregnancy. This drug is effective in treating maternal infection and in preventing fetal infections, as well as in treating established fetal infections.^3,5 Regimens differ depending on the stage of syphilis infection (TABLE). Treatment for presumed early syphilis is recommended for women who have had sexual contact with a partner diagnosed with primary, secondary, or early latent syphilis within 3 months of their current pregnancy.⁵ Any patient with diagnosed syphilis who demonstrates clinical signs of neurologic involvement should undergo lumbar puncture to assess for evidence of neurosyphilis.³ CDC guidelines recommend that patients who report an allergy to penicillin undergo desensitization therapy in a controlled setting, as other antibiotics that have been investigated in the treatment of syphilis are either not appropriate due to teratogenicity or due to suboptimal fetal treatment.^3,5

Syphilotherapy may lead to the Jarisch-Herxheimer reaction, which is an acute systemic reaction to inflammatory cytokines produced in response to lipopolysaccharide released by dying spirochetes.⁵ This reaction is characterized by fever, chills, myalgia, headache, hypotension, and worsening of cutaneous lesions. Preterm labor and delivery and fetal heart rate tracing abnormalities also have been documented in pregnant women experiencing this reaction, particularly during the second half of pregnancy.¹⁶ Prior to the start of treatment, a detailed sonographic assessment should be performed to assess the fetus for signs of early syphilis, including hepatomegaly, elevated peak systolic velocity of the middle cerebral artery (indicative of fetal anemia), polyhydramnios, placentomegaly, or hydrops.^5,7

CASE Resolved

The combination of the patient’s test results—positive FTA, negative RPR, and negative TP-PA—suggest a false-positive treponemal assay. This sequence of tests excludes a diagnosis of syphilis; therefore, no treatment is necessary. Depending on the prevalence of syphilis in the patient’s geographic location, as well as her sexual history, rescreening between 28 and 32 weeks may be warranted. ●

Carvalho Gazarra LB, Bonacordi CL, Yela DA, et al. Bone mass in women with premature ovarian insufficiency: a comparative study between hormone therapy and combined oral contraceptives. Menopause. 2020;27:1110-1116.

EXPERT COMMENTARY

Premature ovarian insufficiency (POI) refers to a condition in women in whom ovarian function ceases prior to age 40 years. Although hormone therapy (HT) is a mainstay of treatment for women with POI, it is uncertain which approach to HT is most effective in terms of bone mineral density (BMD). Investigators recently published their results of an observational study that aimed to evaluate the use of combined oral contraceptives (COCs) for preserving BMD in women with POI.

Details of the study

At an academic center in Brazil, Carvalho Gazarra and colleagues identified women with POI who had undergone 2 or more BMD assessments performed 2 or more years apart.¹ HT regimens (all of which were taken continuously) employed the following: a COC with ethinyl estradiol (EE) 30 µg and levonorgestrel; low-dose estrogen plus progestin therapy (EPT, conjugated equine estrogen [CEE] 0.625 mg with medroxyprogesterone acetate or estradiol 1.0 mg with norethindrone acetate); or high-dose estrogen plus progestin (CEE 1.25 mg or estradiol 2.0 mg combined with the same progestins).

Results. Among 119 evaluable women with POI (mean age, 30.3 years), the use of COC was associated with the most positive BMD trends. For women using COC or high-dose EPT, BMD at the lumbar spine increased. By contrast, BMD of the lumbar spine declined in women who used no treatment or low-dose EPT.¹

Other studies’ take on dose, route of administration, and cost considerations

Sequelae of POI include infertility, bothersome hot flashes, vaginal dryness, sexual dysfunction, mood disorders, and an elevated risk of cardiovascular disease, dementia, Parkinson’s disease, and osteoporosis. Importantly, clinicians and patients need to understand that the results from the Women’s Health Initiative studies do not apply to women with POI.² Physiologic doses of HT (that is, doses higher than those used to treat menopausal symptoms in women with normal/spontaneous menopause) are appropriate for women with POI, at least until they reach the normal age of menopause (51 to 52 years).

A clinical trial conducted in Scotland in women with POI found that high-dose transdermal estrogen (application of one to two 0.1-mg estradiol patches) daily had an impact on BMD that was more positive than that of an oral contraceptive formulated with EE 30 µg.³ Likewise, a trial in the United States found that, among oligo-amenorrheic athletes, a hormone replacement regimen using a 0.1-mg estradiol patch had a more positive impact on BMD than an oral contraceptive formulated with EE 30 µg.⁴

Although Carvalho Gazarra and colleagues acknowledged awareness of reports suggesting the skeletal health benefits of high-dose estradiol patches, in the Brazilian public health system oral hormone therapy is less expensive and oral contraceptives are available at no charge.¹ ●

Carvalho Gazarra LB, Bonacordi CL, Yela DA, et al. Bone mass in women with premature ovarian insufficiency: a comparative study between hormone therapy and combined oral contraceptives. Menopause. 2020;27:1110-1116.

EXPERT COMMENTARY

Premature ovarian insufficiency (POI) refers to a condition in women in whom ovarian function ceases prior to age 40 years. Although hormone therapy (HT) is a mainstay of treatment for women with POI, it is uncertain which approach to HT is most effective in terms of bone mineral density (BMD). Investigators recently published their results of an observational study that aimed to evaluate the use of combined oral contraceptives (COCs) for preserving BMD in women with POI.

Details of the study

At an academic center in Brazil, Carvalho Gazarra and colleagues identified women with POI who had undergone 2 or more BMD assessments performed 2 or more years apart.¹ HT regimens (all of which were taken continuously) employed the following: a COC with ethinyl estradiol (EE) 30 µg and levonorgestrel; low-dose estrogen plus progestin therapy (EPT, conjugated equine estrogen [CEE] 0.625 mg with medroxyprogesterone acetate or estradiol 1.0 mg with norethindrone acetate); or high-dose estrogen plus progestin (CEE 1.25 mg or estradiol 2.0 mg combined with the same progestins).

Results. Among 119 evaluable women with POI (mean age, 30.3 years), the use of COC was associated with the most positive BMD trends. For women using COC or high-dose EPT, BMD at the lumbar spine increased. By contrast, BMD of the lumbar spine declined in women who used no treatment or low-dose EPT.¹

Other studies’ take on dose, route of administration, and cost considerations

Sequelae of POI include infertility, bothersome hot flashes, vaginal dryness, sexual dysfunction, mood disorders, and an elevated risk of cardiovascular disease, dementia, Parkinson’s disease, and osteoporosis. Importantly, clinicians and patients need to understand that the results from the Women’s Health Initiative studies do not apply to women with POI.² Physiologic doses of HT (that is, doses higher than those used to treat menopausal symptoms in women with normal/spontaneous menopause) are appropriate for women with POI, at least until they reach the normal age of menopause (51 to 52 years).

A clinical trial conducted in Scotland in women with POI found that high-dose transdermal estrogen (application of one to two 0.1-mg estradiol patches) daily had an impact on BMD that was more positive than that of an oral contraceptive formulated with EE 30 µg.³ Likewise, a trial in the United States found that, among oligo-amenorrheic athletes, a hormone replacement regimen using a 0.1-mg estradiol patch had a more positive impact on BMD than an oral contraceptive formulated with EE 30 µg.⁴

Although Carvalho Gazarra and colleagues acknowledged awareness of reports suggesting the skeletal health benefits of high-dose estradiol patches, in the Brazilian public health system oral hormone therapy is less expensive and oral contraceptives are available at no charge.¹ ●

Carvalho Gazarra LB, Bonacordi CL, Yela DA, et al. Bone mass in women with premature ovarian insufficiency: a comparative study between hormone therapy and combined oral contraceptives. Menopause. 2020;27:1110-1116.

EXPERT COMMENTARY

Premature ovarian insufficiency (POI) refers to a condition in women in whom ovarian function ceases prior to age 40 years. Although hormone therapy (HT) is a mainstay of treatment for women with POI, it is uncertain which approach to HT is most effective in terms of bone mineral density (BMD). Investigators recently published their results of an observational study that aimed to evaluate the use of combined oral contraceptives (COCs) for preserving BMD in women with POI.

Details of the study

At an academic center in Brazil, Carvalho Gazarra and colleagues identified women with POI who had undergone 2 or more BMD assessments performed 2 or more years apart.¹ HT regimens (all of which were taken continuously) employed the following: a COC with ethinyl estradiol (EE) 30 µg and levonorgestrel; low-dose estrogen plus progestin therapy (EPT, conjugated equine estrogen [CEE] 0.625 mg with medroxyprogesterone acetate or estradiol 1.0 mg with norethindrone acetate); or high-dose estrogen plus progestin (CEE 1.25 mg or estradiol 2.0 mg combined with the same progestins).

Results. Among 119 evaluable women with POI (mean age, 30.3 years), the use of COC was associated with the most positive BMD trends. For women using COC or high-dose EPT, BMD at the lumbar spine increased. By contrast, BMD of the lumbar spine declined in women who used no treatment or low-dose EPT.¹

Other studies’ take on dose, route of administration, and cost considerations

Sequelae of POI include infertility, bothersome hot flashes, vaginal dryness, sexual dysfunction, mood disorders, and an elevated risk of cardiovascular disease, dementia, Parkinson’s disease, and osteoporosis. Importantly, clinicians and patients need to understand that the results from the Women’s Health Initiative studies do not apply to women with POI.² Physiologic doses of HT (that is, doses higher than those used to treat menopausal symptoms in women with normal/spontaneous menopause) are appropriate for women with POI, at least until they reach the normal age of menopause (51 to 52 years).

A clinical trial conducted in Scotland in women with POI found that high-dose transdermal estrogen (application of one to two 0.1-mg estradiol patches) daily had an impact on BMD that was more positive than that of an oral contraceptive formulated with EE 30 µg.³ Likewise, a trial in the United States found that, among oligo-amenorrheic athletes, a hormone replacement regimen using a 0.1-mg estradiol patch had a more positive impact on BMD than an oral contraceptive formulated with EE 30 µg.⁴

Although Carvalho Gazarra and colleagues acknowledged awareness of reports suggesting the skeletal health benefits of high-dose estradiol patches, in the Brazilian public health system oral hormone therapy is less expensive and oral contraceptives are available at no charge.¹ ●

Surprisingly, in the United States, the most common cancer associated with human papillomavirus (HPV) is oropharyngeal squamous cell cancer (SCC), with one study reporting 15,479 cases among men and 3,428 cases among women in 2015.¹ In the same year, the investigators reported 11,788 cases of cervical cancer.¹ A public health concern is that cases of oropharyngeal SCC are increasing, while cases of cervical cancer are decreasing. From 1999 to 2015, the rate of oropharyngeal SCC increased annually among both men and women, at rates of 2.7% and 0.8% per year, respectively. By contrast, the rate of cervical cancer decreased by 1.6% per year.¹

Although the incidence of HPV-negative oropharyngeal SCC (cases associated with cigarette smoking) has declined by 50% from 1988 to 2004, the incidence of HPV-positive oropharyngeal SCC has increased by 225%, with much of the increase occurring among young, white men.² HPV infection is a major cause of oropharyngeal SCC at the base of the tongue and tonsils, but not in the soft palate or oropharyngeal walls.³

Most physicians and parents recognize that the 9-valent (9v)HPV vaccine prevents the majority of cervical cancers and precancers in women. Far fewer people realize that there is an important opportunity to prevent a large number of oropharyngeal cancers by improving 9vHPV vaccination in men and women.

Which HPV types are associated with oropharyngeal cancer?

HPV16 is the most common HPV type associated with oropharyngeal SCC. Among these cancer types, greater than 80% harbor HPV16, with greater than 90% harboring HPV16 or 18 and less than 10% of tumors associated with HPV types 31, 33, 45, 52, or 58.^4-7

The high prevalence of HPV16 in patients with oropharyngeal cancer raises the question of the HPV status of the intimate partner of the index patient. In one study of 164 people with HPV detected in their oropharyngeal, the partner of the index patient had a low prevalence of high-risk HPV types (1.2%) in oral rinse and gargle samples, similar to the rate in the general population (1.3%).⁷ This finding is reassuring and suggests that intimate partners of patients with HPV-positive oropharyngeal cancer effectively clear high-risk HPV virus from the oropharynx. The HPV status of the genital tissue of the intimate partner of an index patient with oropharyngeal SCC has not been adequately studied.

Men are more likely than women to harbor oral HPV

Among a sample of 5,501 men and women aged 14 to 69 years from the National Health and Nutrition Examination Survey, oral rinses were obtained and analyzed for the presence of HPV.⁸ The prevalence of any oral HPV and any oral high-risk HPV was 6.9% and 3.7%, respectively. Oral HPV-16 was detected in 1.6% of men and 0.3% of women. The prevalence of HPV was higher among current smokers, heavy alcohol drinkers, and people with a history of a greater number of sexual partners. In men and women reporting more than 20 lifetime sexual partners, the prevalence of oral HPV was 20%.

In a study of 2,627 men and women aged 18 to 33 years, the prevalence of oral HPV 16/18/6/11 was lower among those vaccinated versus those unvaccinated (0.11% and 1.6%, respectively; P = .008).⁹ Among men, oral HPV 16/18/6/11 was lower among those vaccinated versus unvaccinated (0.0% and 2.13%, respectively; P = .007).⁹ The results of this observational study support the important role of vaccination in reducing oral HPV infection.

Continue to: Vaccinate boys and girls to prevent cancer...

Vaccinate boys and girls to prevent cancer

Most population studies report that males are less likely to receive an HPV vaccine than females. For example, based on the National Health Interview Survey of people aged 18 to 26, the percentage of women who self-reported receiving at least one dose of HPV vaccine was 37% in 2013 and 54% in 2018.¹⁰ By contrast, among men, the rates of self-reported vaccination were much lower—8% in 2013 and 27% in 2018.¹⁰

The percentage of women who received the recommended number of doses of HPV vaccine (see “9vHPV vaccine: Indications and immunization schedule”) was 26% in 2013 and 35% in 2018.¹⁰ For men, these percentages were 2% in 2013 and 9% in 2018.¹⁰ These data indicate that, compared with women, men are less likely to receive an HPV vaccination and far less likely to have received the recommended number of doses.

It is heartening that there has been a slow and steady increase in the prevalence of HPV vaccination. In fact, increasing the HPV vaccination rate among both boys and girls has the potential to markedly reduce the incidence of oropharyngeal cancer.

The reasons for the female-male gap in vaccination rates are not fully characterized. For one, parental awareness of the importance of HPV vaccination to prevent cancer among men is limited, and represents an important opportunity for additional public health education. In a qualitative interview study of mothers with children aged 11 to 19, the investigators reported that most mothers were aware that HPV vaccination could prevent cervical cancer in women, but most mothers did not know that HPV causes cancer of the mouth and that vaccination could prevent oropharyngeal cancer in boys and girls.¹¹ Because of this lack of knowledge, the mothers did not think their sons needed to have an HPV vaccine. The research report is aptly titled, “I don’t think he needs the HPV vaccine cause boys can’t have cervical cancer.”¹¹

Clinicians are highly influential in guiding parents to accept HPV vaccination of their children. Offering consistent messaging to parents that HPV vaccination prevents cancer in both women and men, and reducing the out-of-pocket cost of vaccination surely will result in an increase in the vaccination rate of boys and girls. ●

Surprisingly, in the United States, the most common cancer associated with human papillomavirus (HPV) is oropharyngeal squamous cell cancer (SCC), with one study reporting 15,479 cases among men and 3,428 cases among women in 2015.¹ In the same year, the investigators reported 11,788 cases of cervical cancer.¹ A public health concern is that cases of oropharyngeal SCC are increasing, while cases of cervical cancer are decreasing. From 1999 to 2015, the rate of oropharyngeal SCC increased annually among both men and women, at rates of 2.7% and 0.8% per year, respectively. By contrast, the rate of cervical cancer decreased by 1.6% per year.¹

Although the incidence of HPV-negative oropharyngeal SCC (cases associated with cigarette smoking) has declined by 50% from 1988 to 2004, the incidence of HPV-positive oropharyngeal SCC has increased by 225%, with much of the increase occurring among young, white men.² HPV infection is a major cause of oropharyngeal SCC at the base of the tongue and tonsils, but not in the soft palate or oropharyngeal walls.³

Most physicians and parents recognize that the 9-valent (9v)HPV vaccine prevents the majority of cervical cancers and precancers in women. Far fewer people realize that there is an important opportunity to prevent a large number of oropharyngeal cancers by improving 9vHPV vaccination in men and women.

Which HPV types are associated with oropharyngeal cancer?

HPV16 is the most common HPV type associated with oropharyngeal SCC. Among these cancer types, greater than 80% harbor HPV16, with greater than 90% harboring HPV16 or 18 and less than 10% of tumors associated with HPV types 31, 33, 45, 52, or 58.^4-7

The high prevalence of HPV16 in patients with oropharyngeal cancer raises the question of the HPV status of the intimate partner of the index patient. In one study of 164 people with HPV detected in their oropharyngeal, the partner of the index patient had a low prevalence of high-risk HPV types (1.2%) in oral rinse and gargle samples, similar to the rate in the general population (1.3%).⁷ This finding is reassuring and suggests that intimate partners of patients with HPV-positive oropharyngeal cancer effectively clear high-risk HPV virus from the oropharynx. The HPV status of the genital tissue of the intimate partner of an index patient with oropharyngeal SCC has not been adequately studied.

Men are more likely than women to harbor oral HPV

Among a sample of 5,501 men and women aged 14 to 69 years from the National Health and Nutrition Examination Survey, oral rinses were obtained and analyzed for the presence of HPV.⁸ The prevalence of any oral HPV and any oral high-risk HPV was 6.9% and 3.7%, respectively. Oral HPV-16 was detected in 1.6% of men and 0.3% of women. The prevalence of HPV was higher among current smokers, heavy alcohol drinkers, and people with a history of a greater number of sexual partners. In men and women reporting more than 20 lifetime sexual partners, the prevalence of oral HPV was 20%.

In a study of 2,627 men and women aged 18 to 33 years, the prevalence of oral HPV 16/18/6/11 was lower among those vaccinated versus those unvaccinated (0.11% and 1.6%, respectively; P = .008).⁹ Among men, oral HPV 16/18/6/11 was lower among those vaccinated versus unvaccinated (0.0% and 2.13%, respectively; P = .007).⁹ The results of this observational study support the important role of vaccination in reducing oral HPV infection.

Continue to: Vaccinate boys and girls to prevent cancer...

Vaccinate boys and girls to prevent cancer

Most population studies report that males are less likely to receive an HPV vaccine than females. For example, based on the National Health Interview Survey of people aged 18 to 26, the percentage of women who self-reported receiving at least one dose of HPV vaccine was 37% in 2013 and 54% in 2018.¹⁰ By contrast, among men, the rates of self-reported vaccination were much lower—8% in 2013 and 27% in 2018.¹⁰

The percentage of women who received the recommended number of doses of HPV vaccine (see “9vHPV vaccine: Indications and immunization schedule”) was 26% in 2013 and 35% in 2018.¹⁰ For men, these percentages were 2% in 2013 and 9% in 2018.¹⁰ These data indicate that, compared with women, men are less likely to receive an HPV vaccination and far less likely to have received the recommended number of doses.

It is heartening that there has been a slow and steady increase in the prevalence of HPV vaccination. In fact, increasing the HPV vaccination rate among both boys and girls has the potential to markedly reduce the incidence of oropharyngeal cancer.

The reasons for the female-male gap in vaccination rates are not fully characterized. For one, parental awareness of the importance of HPV vaccination to prevent cancer among men is limited, and represents an important opportunity for additional public health education. In a qualitative interview study of mothers with children aged 11 to 19, the investigators reported that most mothers were aware that HPV vaccination could prevent cervical cancer in women, but most mothers did not know that HPV causes cancer of the mouth and that vaccination could prevent oropharyngeal cancer in boys and girls.¹¹ Because of this lack of knowledge, the mothers did not think their sons needed to have an HPV vaccine. The research report is aptly titled, “I don’t think he needs the HPV vaccine cause boys can’t have cervical cancer.”¹¹

Clinicians are highly influential in guiding parents to accept HPV vaccination of their children. Offering consistent messaging to parents that HPV vaccination prevents cancer in both women and men, and reducing the out-of-pocket cost of vaccination surely will result in an increase in the vaccination rate of boys and girls. ●

Surprisingly, in the United States, the most common cancer associated with human papillomavirus (HPV) is oropharyngeal squamous cell cancer (SCC), with one study reporting 15,479 cases among men and 3,428 cases among women in 2015.¹ In the same year, the investigators reported 11,788 cases of cervical cancer.¹ A public health concern is that cases of oropharyngeal SCC are increasing, while cases of cervical cancer are decreasing. From 1999 to 2015, the rate of oropharyngeal SCC increased annually among both men and women, at rates of 2.7% and 0.8% per year, respectively. By contrast, the rate of cervical cancer decreased by 1.6% per year.¹

Although the incidence of HPV-negative oropharyngeal SCC (cases associated with cigarette smoking) has declined by 50% from 1988 to 2004, the incidence of HPV-positive oropharyngeal SCC has increased by 225%, with much of the increase occurring among young, white men.² HPV infection is a major cause of oropharyngeal SCC at the base of the tongue and tonsils, but not in the soft palate or oropharyngeal walls.³

Most physicians and parents recognize that the 9-valent (9v)HPV vaccine prevents the majority of cervical cancers and precancers in women. Far fewer people realize that there is an important opportunity to prevent a large number of oropharyngeal cancers by improving 9vHPV vaccination in men and women.

Which HPV types are associated with oropharyngeal cancer?

HPV16 is the most common HPV type associated with oropharyngeal SCC. Among these cancer types, greater than 80% harbor HPV16, with greater than 90% harboring HPV16 or 18 and less than 10% of tumors associated with HPV types 31, 33, 45, 52, or 58.^4-7

The high prevalence of HPV16 in patients with oropharyngeal cancer raises the question of the HPV status of the intimate partner of the index patient. In one study of 164 people with HPV detected in their oropharyngeal, the partner of the index patient had a low prevalence of high-risk HPV types (1.2%) in oral rinse and gargle samples, similar to the rate in the general population (1.3%).⁷ This finding is reassuring and suggests that intimate partners of patients with HPV-positive oropharyngeal cancer effectively clear high-risk HPV virus from the oropharynx. The HPV status of the genital tissue of the intimate partner of an index patient with oropharyngeal SCC has not been adequately studied.

Men are more likely than women to harbor oral HPV

Among a sample of 5,501 men and women aged 14 to 69 years from the National Health and Nutrition Examination Survey, oral rinses were obtained and analyzed for the presence of HPV.⁸ The prevalence of any oral HPV and any oral high-risk HPV was 6.9% and 3.7%, respectively. Oral HPV-16 was detected in 1.6% of men and 0.3% of women. The prevalence of HPV was higher among current smokers, heavy alcohol drinkers, and people with a history of a greater number of sexual partners. In men and women reporting more than 20 lifetime sexual partners, the prevalence of oral HPV was 20%.

In a study of 2,627 men and women aged 18 to 33 years, the prevalence of oral HPV 16/18/6/11 was lower among those vaccinated versus those unvaccinated (0.11% and 1.6%, respectively; P = .008).⁹ Among men, oral HPV 16/18/6/11 was lower among those vaccinated versus unvaccinated (0.0% and 2.13%, respectively; P = .007).⁹ The results of this observational study support the important role of vaccination in reducing oral HPV infection.

Continue to: Vaccinate boys and girls to prevent cancer...

Vaccinate boys and girls to prevent cancer

Most population studies report that males are less likely to receive an HPV vaccine than females. For example, based on the National Health Interview Survey of people aged 18 to 26, the percentage of women who self-reported receiving at least one dose of HPV vaccine was 37% in 2013 and 54% in 2018.¹⁰ By contrast, among men, the rates of self-reported vaccination were much lower—8% in 2013 and 27% in 2018.¹⁰

The percentage of women who received the recommended number of doses of HPV vaccine (see “9vHPV vaccine: Indications and immunization schedule”) was 26% in 2013 and 35% in 2018.¹⁰ For men, these percentages were 2% in 2013 and 9% in 2018.¹⁰ These data indicate that, compared with women, men are less likely to receive an HPV vaccination and far less likely to have received the recommended number of doses.

It is heartening that there has been a slow and steady increase in the prevalence of HPV vaccination. In fact, increasing the HPV vaccination rate among both boys and girls has the potential to markedly reduce the incidence of oropharyngeal cancer.

The reasons for the female-male gap in vaccination rates are not fully characterized. For one, parental awareness of the importance of HPV vaccination to prevent cancer among men is limited, and represents an important opportunity for additional public health education. In a qualitative interview study of mothers with children aged 11 to 19, the investigators reported that most mothers were aware that HPV vaccination could prevent cervical cancer in women, but most mothers did not know that HPV causes cancer of the mouth and that vaccination could prevent oropharyngeal cancer in boys and girls.¹¹ Because of this lack of knowledge, the mothers did not think their sons needed to have an HPV vaccine. The research report is aptly titled, “I don’t think he needs the HPV vaccine cause boys can’t have cervical cancer.”¹¹

Clinicians are highly influential in guiding parents to accept HPV vaccination of their children. Offering consistent messaging to parents that HPV vaccination prevents cancer in both women and men, and reducing the out-of-pocket cost of vaccination surely will result in an increase in the vaccination rate of boys and girls. ●

CASE Concerning finding on repeat CD

A 30-year-old woman with a history of 1 prior cesarean delivery (CD) presents to labor and delivery at 38 weeks of gestation with symptoms of mild cramping. Her prenatal care was uncomplicated. The covering team made a decision to proceed with a repeat CD. A Pfannenstiel incision is made to enter the abdomen, and inspection of the lower uterine segment is concerning for a placenta accreta spectrum (PAS) (FIGURE).

What would be your next steps?

Placenta accreta spectrum describes the range of disorders of placental implantation, including placenta accreta, increta, and percreta. PAS is a significant cause of severe maternal morbidity and mortality, primarily due to massive hemorrhage at the time of delivery. The incidence of PAS continues to rise along with the CD rate. The authors of a recent meta-analysis reported a pooled prevalence rate of 1 in 588 women.¹ Notably, in women with PAS, the rate of hysterectomy is 52.2%, and the transfusion-dependent hemorrhage rate is 46.9%.¹

Ideally, PAS should be diagnosed or at least suspected antenatally during prenatal ultrasonography, leading to delivery planning by a multidisciplinary team.² The presence of a multidisciplinary team—in addition to the primary obstetric and surgical teams—composed of experienced anesthesiologists, a blood bank able to respond to massive transfusion needs, critical care specialists, and interventional radiologists is associated with improved outcomes.^3-5

Occasionally, a patient is found to have an advanced PAS (increta or percreta) at the time of delivery. In these situations, it is paramount that the appropriate resources be assembled as expeditiously as possible to optimize maternal outcomes. Surgical management can be challenging even for experienced pelvic surgeons, and appropriate resuscitation cannot be provided by a single anesthesiologist working alone. A cavalier attitude of proceeding with the delivery “as usual” in the face of an unexpected PAS situation can lead to disastrous consequences, including maternal death.

In this article, we review the important steps to take when faced with the unexpected situation of a PAS at the time of CD.

Continue to: Stop and collect your multidisciplinary team...

Stop and collect your multidisciplinary team

Once the diagnosis of an advanced PAS is suspected, the first step is to stop and request the presence of your institution’s multidisciplinary surgical team. This team typically includes a maternal-fetal specialist or, if not available, an experienced obstetrician, and an expert pelvic surgeon, which varies by institution (gynecologic oncologist, trauma surgeon, urologist, urogynecologist, vascular surgeon). An interventional radiology team is an additional useful resource that can assist with the control of pelvic hemorrhage using embolization techniques.

In our opinion, it is not appropriate to have a surgical backup team available only as needed at a certain distance from the hospital or even in the building. Because of the acuity and magnitude of bleeding that can occur in a short time, the most appropriate approach is to have your surgical team scrubbed and ready to assist or take over the procedure immediately if indicated.

Additional support staff also may be required. A single circulating nurse may not be sufficient, and available nursing staff may need to be called. The surgical technician scrubbed on the case may be familiar only with uncomplicated CDs and can be overwhelmed during a PAS case. Having a more experienced surgical technologist can optimize the availability of the appropriate instruments for the surgical team.

If a multidisciplinary surgical team with PAS management expertise is not available at your institution and the patient is stable, it is appropriate to consider transferring her to the nearest center that can meet the high-risk needs of this situation.⁶

Prepare for resuscitation

While you are calling your multidisciplinary team members, implement plans for resuscitation by notifying the anesthesiologist about the PAS findings. This will allow the gathering of needed resources that may include calling on additional anesthesiologists with experience in high-risk obstetrics, trauma, or critical care.

Placing large-bore intravenous lines or a central line to allow rapid transfusion is essential. Strongly consider inserting an arterial line for hemodynamic monitoring and intraoperative blood draws to monitor blood loss, blood gases, electrolytes, and coagulation parameters, which can guide resuscitative efforts and replacement therapies.

Simultaneously, inform the blood bank to prepare blood and blood products for possible activation of a massive transfusion protocol. It is imperative to have the products available in the operating room (OR) prior to proceeding with the surgery. Our current practice is to have 10 units of packed red blood cells and fresh frozen plasma available in the OR for all our prenatally diagnosed electively planned PAS cases.

Optimize exposure of the surgical field

Appropriate exposure of the surgical field is essential and should include exposure of the uterine fundus and the pelvic sidewalls. The uterine incision should avoid the placenta; typically it is placed at the level of the uterine fundus. Exposure of the pelvic sidewalls is needed to open the retroperitoneum and identify the ureter and the iliac vessels.

Vertical extension of the fascial incision probably will be needed to achieve appropriate exposure. Although at times this can be done without a concomitant vertical skin incision, often an inverted T incision is required. Be mindful that PAS is a life-threatening condition and that aesthetics are not a priority. After extending the fascial incision, adequate exposure can be achieved with any of the commonly used retractors or wound protectors (depending on institutional availability and surgeon preference) or by the surgical assistants using body wall retractors.

We routinely place the patient in lithotomy position. This allows us to monitor for vaginal bleeding (often a site of unrecognized massive hemorrhage) during the surgery, facilitate retrograde bladder filling, and provide a vaginal access to the pelvis. In addition, the lithotomy position allows for cystoscopy and placement of ureteral stents, which can be performed before starting the surgery to help prevent urinary tract injuries or at the end of the procedure in case one is suspected.⁷

Continue to: Performing the hysterectomy...

A complete review of all surgical techniques for managing PAS is beyond the scope of this article. However, we briefly cover important procedural steps and offer suggestions on how to minimize the risk of bleeding.

In our experience. The areas with the highest risk of massive bleeding that can be difficult to control include the pelvic sidewall when there is lateral extension of the PAS, the vesicouterine space, and placenta previa vaginally. Be mindful of these areas at risk and have a plan in place in case of bleeding.

Uterine incision

Avoid the placenta when making the uterine incision, which is typically done in the fundal part of the uterus. Cut and tie the cord and return it to the uterine cavity. Close the incision in a single layer. Use of a surgical stapler can be used for the hysterotomy and can decrease the amount of blood loss.⁸

Superior attachments of the uterus

The superior attachments of the uterus include the round ligament, the utero-ovarian ligament, and the fallopian tubes. With meticulous dissection, develop an avascular space underneath these structures and, in turn, individually divide and suture ligate; this is typically achieved with minimal blood loss.

In addition, isolate the engorged veins of the broad ligament and divide them in a similar fashion.

In our experience. Use of a vessel-sealing device can facilitate division of all the former structures. Simply excise the fallopian tubes with the vessel-sealing device either at this time or after the uterus is removed.

Pelvic sidewall

Once the superior attachments of the uterus have been divided, the next step involves exposing the pelvic sidewall structures, that is, the ureter and the pelvic vessels. Expose the ureter from the pelvic brim to the level of the uterine artery. The hypogastric artery is exposed as well in this process and the pararectal space developed.

When the PAS has extended laterally, perform stepwise division of the lateral attachments of the placenta to the pelvic sidewall using a combination of electrocautery, hemoclips, and the vessel-sealing device. In laterally extended PAS cases, it often is necessary to divide the uterine artery either at its origin or at the level of the ureter to allow for the completion of the separation of the placenta from the pelvic sidewall.

In our experience. During this lateral dissection, significant bleeding may be encountered from the neovascular network that has developed in the pelvic sidewall. The bleeding may be diffuse and difficult to control with the methods described above. In this situation, we have found that placing hemostatic agents in this area and packing the sidewall with laparotomy pads can achieve hemostasis in most cases, thus allowing the surgery to proceed.

Continue to: Bladder dissection...

Bladder dissection

The next critical part of the surgery involves developing the vesicovaginal space to mobilize the bladder. Prior to initiating the bladder dissection, we routinely retrograde fill the bladder with 180 to 240 mL of saline mixed with methylene blue. This delineates the superior edge of the bladder and indicates the appropriate level to start the dissection. Then slowly develop the vesicouterine space using a combination of electrocautery and a vessel-sealing device until the bladder is mobilized to the level of the anterior vaginal wall. Many vascular connections are encountered at that level, and meticulous dissection and patience is required to systematically divide them all.

In our experience. This part of the surgery presents several challenges. The bladder wall may be invaded by the placenta, which will lead to an increased risk of bleeding and cystotomy during the dissection. In these cases, it might be preferable to create an intentional cystotomy to guide the dissection; at times, a limited excision of the involved bladder wall may be required. In other cases, even in the absence of bladder wall invasion, the bladder may be densely adherent to the uterine wall (usually due to a history of prior CDs), and bladder mobilization may be complicated by bleeding from the neovascular network that has developed between the placenta and bladder.

Uterine arteries and cervix

Once the placenta is separated from its lateral attachments and the bladder is mobilized, the next steps are similar to those in a standard abdominal hysterectomy. If the uterine arteries were not yet divided during the pelvic sidewall dissection, they are clamped, divided, and suture ligated at the level of the uterine isthmus. The decision whether to perform a supracervical or total hysterectomy depends on the level of cervical involvement by the placenta, surgeon preference, anatomic distortion, and bleeding from the cervix and anterior vaginal wall.

Responding to massive bleeding

Not uncommonly, and despite the best efforts to avoid it, massive bleeding may develop from the areas at risk as noted above. If the bleeding is significant and originates from multiple areas (including vaginal bleeding from placenta previa), we recommend proceeding with an expeditious hysterectomy to remove the specimen, and then reassess the pelvic field for hemostatic control and any organ damage that may have occurred.

The challenge of PAS

Surgical management of PAS is one the most challenging procedures in pelvic surgery. Successful outcomes require a multidisciplinary team approach and an experienced team dedicated to the management of this condition.⁹ By contrast, proceeding “as usual” in the face of an unexpected PAS situation can lead to disastrous consequences in terms of maternal morbidity and mortality. ●

CASE Concerning finding on repeat CD

A 30-year-old woman with a history of 1 prior cesarean delivery (CD) presents to labor and delivery at 38 weeks of gestation with symptoms of mild cramping. Her prenatal care was uncomplicated. The covering team made a decision to proceed with a repeat CD. A Pfannenstiel incision is made to enter the abdomen, and inspection of the lower uterine segment is concerning for a placenta accreta spectrum (PAS) (FIGURE).

What would be your next steps?

Placenta accreta spectrum describes the range of disorders of placental implantation, including placenta accreta, increta, and percreta. PAS is a significant cause of severe maternal morbidity and mortality, primarily due to massive hemorrhage at the time of delivery. The incidence of PAS continues to rise along with the CD rate. The authors of a recent meta-analysis reported a pooled prevalence rate of 1 in 588 women.¹ Notably, in women with PAS, the rate of hysterectomy is 52.2%, and the transfusion-dependent hemorrhage rate is 46.9%.¹

Ideally, PAS should be diagnosed or at least suspected antenatally during prenatal ultrasonography, leading to delivery planning by a multidisciplinary team.² The presence of a multidisciplinary team—in addition to the primary obstetric and surgical teams—composed of experienced anesthesiologists, a blood bank able to respond to massive transfusion needs, critical care specialists, and interventional radiologists is associated with improved outcomes.^3-5

Occasionally, a patient is found to have an advanced PAS (increta or percreta) at the time of delivery. In these situations, it is paramount that the appropriate resources be assembled as expeditiously as possible to optimize maternal outcomes. Surgical management can be challenging even for experienced pelvic surgeons, and appropriate resuscitation cannot be provided by a single anesthesiologist working alone. A cavalier attitude of proceeding with the delivery “as usual” in the face of an unexpected PAS situation can lead to disastrous consequences, including maternal death.

In this article, we review the important steps to take when faced with the unexpected situation of a PAS at the time of CD.

Continue to: Stop and collect your multidisciplinary team...

Stop and collect your multidisciplinary team

Once the diagnosis of an advanced PAS is suspected, the first step is to stop and request the presence of your institution’s multidisciplinary surgical team. This team typically includes a maternal-fetal specialist or, if not available, an experienced obstetrician, and an expert pelvic surgeon, which varies by institution (gynecologic oncologist, trauma surgeon, urologist, urogynecologist, vascular surgeon). An interventional radiology team is an additional useful resource that can assist with the control of pelvic hemorrhage using embolization techniques.

In our opinion, it is not appropriate to have a surgical backup team available only as needed at a certain distance from the hospital or even in the building. Because of the acuity and magnitude of bleeding that can occur in a short time, the most appropriate approach is to have your surgical team scrubbed and ready to assist or take over the procedure immediately if indicated.

Additional support staff also may be required. A single circulating nurse may not be sufficient, and available nursing staff may need to be called. The surgical technician scrubbed on the case may be familiar only with uncomplicated CDs and can be overwhelmed during a PAS case. Having a more experienced surgical technologist can optimize the availability of the appropriate instruments for the surgical team.

If a multidisciplinary surgical team with PAS management expertise is not available at your institution and the patient is stable, it is appropriate to consider transferring her to the nearest center that can meet the high-risk needs of this situation.⁶

Prepare for resuscitation

While you are calling your multidisciplinary team members, implement plans for resuscitation by notifying the anesthesiologist about the PAS findings. This will allow the gathering of needed resources that may include calling on additional anesthesiologists with experience in high-risk obstetrics, trauma, or critical care.

Placing large-bore intravenous lines or a central line to allow rapid transfusion is essential. Strongly consider inserting an arterial line for hemodynamic monitoring and intraoperative blood draws to monitor blood loss, blood gases, electrolytes, and coagulation parameters, which can guide resuscitative efforts and replacement therapies.

Simultaneously, inform the blood bank to prepare blood and blood products for possible activation of a massive transfusion protocol. It is imperative to have the products available in the operating room (OR) prior to proceeding with the surgery. Our current practice is to have 10 units of packed red blood cells and fresh frozen plasma available in the OR for all our prenatally diagnosed electively planned PAS cases.

Optimize exposure of the surgical field

Appropriate exposure of the surgical field is essential and should include exposure of the uterine fundus and the pelvic sidewalls. The uterine incision should avoid the placenta; typically it is placed at the level of the uterine fundus. Exposure of the pelvic sidewalls is needed to open the retroperitoneum and identify the ureter and the iliac vessels.

Vertical extension of the fascial incision probably will be needed to achieve appropriate exposure. Although at times this can be done without a concomitant vertical skin incision, often an inverted T incision is required. Be mindful that PAS is a life-threatening condition and that aesthetics are not a priority. After extending the fascial incision, adequate exposure can be achieved with any of the commonly used retractors or wound protectors (depending on institutional availability and surgeon preference) or by the surgical assistants using body wall retractors.

We routinely place the patient in lithotomy position. This allows us to monitor for vaginal bleeding (often a site of unrecognized massive hemorrhage) during the surgery, facilitate retrograde bladder filling, and provide a vaginal access to the pelvis. In addition, the lithotomy position allows for cystoscopy and placement of ureteral stents, which can be performed before starting the surgery to help prevent urinary tract injuries or at the end of the procedure in case one is suspected.⁷

Continue to: Performing the hysterectomy...

A complete review of all surgical techniques for managing PAS is beyond the scope of this article. However, we briefly cover important procedural steps and offer suggestions on how to minimize the risk of bleeding.

In our experience. The areas with the highest risk of massive bleeding that can be difficult to control include the pelvic sidewall when there is lateral extension of the PAS, the vesicouterine space, and placenta previa vaginally. Be mindful of these areas at risk and have a plan in place in case of bleeding.

Uterine incision

Avoid the placenta when making the uterine incision, which is typically done in the fundal part of the uterus. Cut and tie the cord and return it to the uterine cavity. Close the incision in a single layer. Use of a surgical stapler can be used for the hysterotomy and can decrease the amount of blood loss.⁸

Superior attachments of the uterus

The superior attachments of the uterus include the round ligament, the utero-ovarian ligament, and the fallopian tubes. With meticulous dissection, develop an avascular space underneath these structures and, in turn, individually divide and suture ligate; this is typically achieved with minimal blood loss.

In addition, isolate the engorged veins of the broad ligament and divide them in a similar fashion.

In our experience. Use of a vessel-sealing device can facilitate division of all the former structures. Simply excise the fallopian tubes with the vessel-sealing device either at this time or after the uterus is removed.

Pelvic sidewall

Once the superior attachments of the uterus have been divided, the next step involves exposing the pelvic sidewall structures, that is, the ureter and the pelvic vessels. Expose the ureter from the pelvic brim to the level of the uterine artery. The hypogastric artery is exposed as well in this process and the pararectal space developed.

When the PAS has extended laterally, perform stepwise division of the lateral attachments of the placenta to the pelvic sidewall using a combination of electrocautery, hemoclips, and the vessel-sealing device. In laterally extended PAS cases, it often is necessary to divide the uterine artery either at its origin or at the level of the ureter to allow for the completion of the separation of the placenta from the pelvic sidewall.

In our experience. During this lateral dissection, significant bleeding may be encountered from the neovascular network that has developed in the pelvic sidewall. The bleeding may be diffuse and difficult to control with the methods described above. In this situation, we have found that placing hemostatic agents in this area and packing the sidewall with laparotomy pads can achieve hemostasis in most cases, thus allowing the surgery to proceed.

Continue to: Bladder dissection...

Bladder dissection

The next critical part of the surgery involves developing the vesicovaginal space to mobilize the bladder. Prior to initiating the bladder dissection, we routinely retrograde fill the bladder with 180 to 240 mL of saline mixed with methylene blue. This delineates the superior edge of the bladder and indicates the appropriate level to start the dissection. Then slowly develop the vesicouterine space using a combination of electrocautery and a vessel-sealing device until the bladder is mobilized to the level of the anterior vaginal wall. Many vascular connections are encountered at that level, and meticulous dissection and patience is required to systematically divide them all.

In our experience. This part of the surgery presents several challenges. The bladder wall may be invaded by the placenta, which will lead to an increased risk of bleeding and cystotomy during the dissection. In these cases, it might be preferable to create an intentional cystotomy to guide the dissection; at times, a limited excision of the involved bladder wall may be required. In other cases, even in the absence of bladder wall invasion, the bladder may be densely adherent to the uterine wall (usually due to a history of prior CDs), and bladder mobilization may be complicated by bleeding from the neovascular network that has developed between the placenta and bladder.

Uterine arteries and cervix

Once the placenta is separated from its lateral attachments and the bladder is mobilized, the next steps are similar to those in a standard abdominal hysterectomy. If the uterine arteries were not yet divided during the pelvic sidewall dissection, they are clamped, divided, and suture ligated at the level of the uterine isthmus. The decision whether to perform a supracervical or total hysterectomy depends on the level of cervical involvement by the placenta, surgeon preference, anatomic distortion, and bleeding from the cervix and anterior vaginal wall.

Responding to massive bleeding

Not uncommonly, and despite the best efforts to avoid it, massive bleeding may develop from the areas at risk as noted above. If the bleeding is significant and originates from multiple areas (including vaginal bleeding from placenta previa), we recommend proceeding with an expeditious hysterectomy to remove the specimen, and then reassess the pelvic field for hemostatic control and any organ damage that may have occurred.

The challenge of PAS

Surgical management of PAS is one the most challenging procedures in pelvic surgery. Successful outcomes require a multidisciplinary team approach and an experienced team dedicated to the management of this condition.⁹ By contrast, proceeding “as usual” in the face of an unexpected PAS situation can lead to disastrous consequences in terms of maternal morbidity and mortality. ●

CASE Concerning finding on repeat CD

A 30-year-old woman with a history of 1 prior cesarean delivery (CD) presents to labor and delivery at 38 weeks of gestation with symptoms of mild cramping. Her prenatal care was uncomplicated. The covering team made a decision to proceed with a repeat CD. A Pfannenstiel incision is made to enter the abdomen, and inspection of the lower uterine segment is concerning for a placenta accreta spectrum (PAS) (FIGURE).

What would be your next steps?

Placenta accreta spectrum describes the range of disorders of placental implantation, including placenta accreta, increta, and percreta. PAS is a significant cause of severe maternal morbidity and mortality, primarily due to massive hemorrhage at the time of delivery. The incidence of PAS continues to rise along with the CD rate. The authors of a recent meta-analysis reported a pooled prevalence rate of 1 in 588 women.¹ Notably, in women with PAS, the rate of hysterectomy is 52.2%, and the transfusion-dependent hemorrhage rate is 46.9%.¹

Ideally, PAS should be diagnosed or at least suspected antenatally during prenatal ultrasonography, leading to delivery planning by a multidisciplinary team.² The presence of a multidisciplinary team—in addition to the primary obstetric and surgical teams—composed of experienced anesthesiologists, a blood bank able to respond to massive transfusion needs, critical care specialists, and interventional radiologists is associated with improved outcomes.^3-5

Occasionally, a patient is found to have an advanced PAS (increta or percreta) at the time of delivery. In these situations, it is paramount that the appropriate resources be assembled as expeditiously as possible to optimize maternal outcomes. Surgical management can be challenging even for experienced pelvic surgeons, and appropriate resuscitation cannot be provided by a single anesthesiologist working alone. A cavalier attitude of proceeding with the delivery “as usual” in the face of an unexpected PAS situation can lead to disastrous consequences, including maternal death.

In this article, we review the important steps to take when faced with the unexpected situation of a PAS at the time of CD.

Continue to: Stop and collect your multidisciplinary team...

Stop and collect your multidisciplinary team

Once the diagnosis of an advanced PAS is suspected, the first step is to stop and request the presence of your institution’s multidisciplinary surgical team. This team typically includes a maternal-fetal specialist or, if not available, an experienced obstetrician, and an expert pelvic surgeon, which varies by institution (gynecologic oncologist, trauma surgeon, urologist, urogynecologist, vascular surgeon). An interventional radiology team is an additional useful resource that can assist with the control of pelvic hemorrhage using embolization techniques.

In our opinion, it is not appropriate to have a surgical backup team available only as needed at a certain distance from the hospital or even in the building. Because of the acuity and magnitude of bleeding that can occur in a short time, the most appropriate approach is to have your surgical team scrubbed and ready to assist or take over the procedure immediately if indicated.

Additional support staff also may be required. A single circulating nurse may not be sufficient, and available nursing staff may need to be called. The surgical technician scrubbed on the case may be familiar only with uncomplicated CDs and can be overwhelmed during a PAS case. Having a more experienced surgical technologist can optimize the availability of the appropriate instruments for the surgical team.

If a multidisciplinary surgical team with PAS management expertise is not available at your institution and the patient is stable, it is appropriate to consider transferring her to the nearest center that can meet the high-risk needs of this situation.⁶

Prepare for resuscitation

While you are calling your multidisciplinary team members, implement plans for resuscitation by notifying the anesthesiologist about the PAS findings. This will allow the gathering of needed resources that may include calling on additional anesthesiologists with experience in high-risk obstetrics, trauma, or critical care.

Placing large-bore intravenous lines or a central line to allow rapid transfusion is essential. Strongly consider inserting an arterial line for hemodynamic monitoring and intraoperative blood draws to monitor blood loss, blood gases, electrolytes, and coagulation parameters, which can guide resuscitative efforts and replacement therapies.

Simultaneously, inform the blood bank to prepare blood and blood products for possible activation of a massive transfusion protocol. It is imperative to have the products available in the operating room (OR) prior to proceeding with the surgery. Our current practice is to have 10 units of packed red blood cells and fresh frozen plasma available in the OR for all our prenatally diagnosed electively planned PAS cases.

Optimize exposure of the surgical field

Appropriate exposure of the surgical field is essential and should include exposure of the uterine fundus and the pelvic sidewalls. The uterine incision should avoid the placenta; typically it is placed at the level of the uterine fundus. Exposure of the pelvic sidewalls is needed to open the retroperitoneum and identify the ureter and the iliac vessels.

Vertical extension of the fascial incision probably will be needed to achieve appropriate exposure. Although at times this can be done without a concomitant vertical skin incision, often an inverted T incision is required. Be mindful that PAS is a life-threatening condition and that aesthetics are not a priority. After extending the fascial incision, adequate exposure can be achieved with any of the commonly used retractors or wound protectors (depending on institutional availability and surgeon preference) or by the surgical assistants using body wall retractors.

We routinely place the patient in lithotomy position. This allows us to monitor for vaginal bleeding (often a site of unrecognized massive hemorrhage) during the surgery, facilitate retrograde bladder filling, and provide a vaginal access to the pelvis. In addition, the lithotomy position allows for cystoscopy and placement of ureteral stents, which can be performed before starting the surgery to help prevent urinary tract injuries or at the end of the procedure in case one is suspected.⁷

Continue to: Performing the hysterectomy...

A complete review of all surgical techniques for managing PAS is beyond the scope of this article. However, we briefly cover important procedural steps and offer suggestions on how to minimize the risk of bleeding.

In our experience. The areas with the highest risk of massive bleeding that can be difficult to control include the pelvic sidewall when there is lateral extension of the PAS, the vesicouterine space, and placenta previa vaginally. Be mindful of these areas at risk and have a plan in place in case of bleeding.

Uterine incision

Avoid the placenta when making the uterine incision, which is typically done in the fundal part of the uterus. Cut and tie the cord and return it to the uterine cavity. Close the incision in a single layer. Use of a surgical stapler can be used for the hysterotomy and can decrease the amount of blood loss.⁸

Superior attachments of the uterus

The superior attachments of the uterus include the round ligament, the utero-ovarian ligament, and the fallopian tubes. With meticulous dissection, develop an avascular space underneath these structures and, in turn, individually divide and suture ligate; this is typically achieved with minimal blood loss.

In addition, isolate the engorged veins of the broad ligament and divide them in a similar fashion.

In our experience. Use of a vessel-sealing device can facilitate division of all the former structures. Simply excise the fallopian tubes with the vessel-sealing device either at this time or after the uterus is removed.

Pelvic sidewall

Once the superior attachments of the uterus have been divided, the next step involves exposing the pelvic sidewall structures, that is, the ureter and the pelvic vessels. Expose the ureter from the pelvic brim to the level of the uterine artery. The hypogastric artery is exposed as well in this process and the pararectal space developed.

When the PAS has extended laterally, perform stepwise division of the lateral attachments of the placenta to the pelvic sidewall using a combination of electrocautery, hemoclips, and the vessel-sealing device. In laterally extended PAS cases, it often is necessary to divide the uterine artery either at its origin or at the level of the ureter to allow for the completion of the separation of the placenta from the pelvic sidewall.

In our experience. During this lateral dissection, significant bleeding may be encountered from the neovascular network that has developed in the pelvic sidewall. The bleeding may be diffuse and difficult to control with the methods described above. In this situation, we have found that placing hemostatic agents in this area and packing the sidewall with laparotomy pads can achieve hemostasis in most cases, thus allowing the surgery to proceed.

Continue to: Bladder dissection...

Bladder dissection

The next critical part of the surgery involves developing the vesicovaginal space to mobilize the bladder. Prior to initiating the bladder dissection, we routinely retrograde fill the bladder with 180 to 240 mL of saline mixed with methylene blue. This delineates the superior edge of the bladder and indicates the appropriate level to start the dissection. Then slowly develop the vesicouterine space using a combination of electrocautery and a vessel-sealing device until the bladder is mobilized to the level of the anterior vaginal wall. Many vascular connections are encountered at that level, and meticulous dissection and patience is required to systematically divide them all.

In our experience. This part of the surgery presents several challenges. The bladder wall may be invaded by the placenta, which will lead to an increased risk of bleeding and cystotomy during the dissection. In these cases, it might be preferable to create an intentional cystotomy to guide the dissection; at times, a limited excision of the involved bladder wall may be required. In other cases, even in the absence of bladder wall invasion, the bladder may be densely adherent to the uterine wall (usually due to a history of prior CDs), and bladder mobilization may be complicated by bleeding from the neovascular network that has developed between the placenta and bladder.

Uterine arteries and cervix

Once the placenta is separated from its lateral attachments and the bladder is mobilized, the next steps are similar to those in a standard abdominal hysterectomy. If the uterine arteries were not yet divided during the pelvic sidewall dissection, they are clamped, divided, and suture ligated at the level of the uterine isthmus. The decision whether to perform a supracervical or total hysterectomy depends on the level of cervical involvement by the placenta, surgeon preference, anatomic distortion, and bleeding from the cervix and anterior vaginal wall.

Responding to massive bleeding

Not uncommonly, and despite the best efforts to avoid it, massive bleeding may develop from the areas at risk as noted above. If the bleeding is significant and originates from multiple areas (including vaginal bleeding from placenta previa), we recommend proceeding with an expeditious hysterectomy to remove the specimen, and then reassess the pelvic field for hemostatic control and any organ damage that may have occurred.

The challenge of PAS

Surgical management of PAS is one the most challenging procedures in pelvic surgery. Successful outcomes require a multidisciplinary team approach and an experienced team dedicated to the management of this condition.⁹ By contrast, proceeding “as usual” in the face of an unexpected PAS situation can lead to disastrous consequences in terms of maternal morbidity and mortality. ●

The coronavirus disease 2019 (COVID-19) pandemic has upended the traditional 2020–2021 application season for ObGyn residency programs. In May 2020, the 2 national ObGyn education organizations, the Association of Professors of Gynecology and Obstetrics (APGO) and Council on Resident Education in ObGyn (CREOG), issued guidelines to ensure a fair and equitable application process.¹ These guidelines are consistent with recommendations from the Association of American Medical Colleges (AAMC) and the Coalition for Physician Accountability. Important recommendations include:

• limiting away rotations
• being flexible in the number of specialty-specific letters of recommendation required
• encouraging residency programs to develop alternate means of conveying information about their curriculum.

In addition, these statements provide timing on when programs should release interview offers and when to begin interviews. Finally, programs are required to commit to online interviews and virtual visits for all applicants, including local students, rather than in-person interviews.

Here, we focus on identifying apps that students can use to help them with the application process—apps for the nuts and bolts of applying and interviewing and apps to learn more about individual programs.

Students must use the Electronic Residency Application Service (ERAS) platform from AAMC to enter their information and register with the National Resident Matching Program (NRMP). Students also must use the ERAS to submit their applications to their selected residency programs. The ERAS platform does not include an app to aid in the completion or submission of an application. The NRMP has developed the MATCH PRISM app, but this does not allow students to register for the match or submit their rank list. To learn about how to schedule interviews, residency programs may use one of the following sources: ERAS, Interview Broker, or Thalamus. Moreover, APGO/CREOG has partnered with Thalamus for the upcoming application cycle, which provides residency programs and applicants tools for application management, interview scheduling, and itinerary building. Thalamus offers a free app.

This year offers some unique challenges. The application process for ObGyn residencies is likely to be more competitive, and students face the added stress of having to navigate the interview season:

• without away rotations (audition interviews)
• without in-person visits of the city/hospital/program or social events before or after interview day
• with an all-virtual interview day.

Continue to: To find information on individual residency programs...

To find information on individual residency programs, the APGO website lists the FREIDA and APGO Residency Directories, which are not apps. Students are also aware of the Doximity Residency Navigator, which does include an app. The NRMP MATCH PRISM app is another resource, as it provides students with a directory of residency programs and information about each program.

The American College of Obstetricians and Gynecologists (ACOG) recognizes that residency program websites and social media will be crucial in helping applicants learn about individual programs, faculty, and residents. As such, ACOG hosted a Virtual Residency Showcase in September 2020 in which programs posted content on Instagram and Twitter using the hashtag #ACOG-ResWeek20.² Similarly, APGO and CREOG produced a report containing a social media directory, which lists individual residency programs and whether or not they have a social media handle/account.³ In a recent webinar,⁴ Drs. Sarah Santiago and Elizabeth Southworth noted that the number of residency programs that have an Instagram account more than doubled (from 60 to 128) between May and September 2020.

The coronavirus disease 2019 (COVID-19) pandemic has upended the traditional 2020–2021 application season for ObGyn residency programs. In May 2020, the 2 national ObGyn education organizations, the Association of Professors of Gynecology and Obstetrics (APGO) and Council on Resident Education in ObGyn (CREOG), issued guidelines to ensure a fair and equitable application process.¹ These guidelines are consistent with recommendations from the Association of American Medical Colleges (AAMC) and the Coalition for Physician Accountability. Important recommendations include:

• limiting away rotations
• being flexible in the number of specialty-specific letters of recommendation required
• encouraging residency programs to develop alternate means of conveying information about their curriculum.

In addition, these statements provide timing on when programs should release interview offers and when to begin interviews. Finally, programs are required to commit to online interviews and virtual visits for all applicants, including local students, rather than in-person interviews.

Here, we focus on identifying apps that students can use to help them with the application process—apps for the nuts and bolts of applying and interviewing and apps to learn more about individual programs.

Students must use the Electronic Residency Application Service (ERAS) platform from AAMC to enter their information and register with the National Resident Matching Program (NRMP). Students also must use the ERAS to submit their applications to their selected residency programs. The ERAS platform does not include an app to aid in the completion or submission of an application. The NRMP has developed the MATCH PRISM app, but this does not allow students to register for the match or submit their rank list. To learn about how to schedule interviews, residency programs may use one of the following sources: ERAS, Interview Broker, or Thalamus. Moreover, APGO/CREOG has partnered with Thalamus for the upcoming application cycle, which provides residency programs and applicants tools for application management, interview scheduling, and itinerary building. Thalamus offers a free app.

This year offers some unique challenges. The application process for ObGyn residencies is likely to be more competitive, and students face the added stress of having to navigate the interview season: