Clinical Review

Transgender Care in the Primary Care Setting: A Review of Guidelines and Literature

Fed Pract. 2018 July;35(7):30-37

References

1. Deutsch MB. Guidelines for the primary and gender-affirming care of transgender and gender nonbinary people. http://transhealth.ucsf.edu/protocols. Updated June 17, 2016. Accessed June 13, 2018.

2. Hembree WC, Cohen-Kettenis PT, Gooren L, et al. Endocrine treatment of gender-dysphoria/gender-incongruent persons: an endocrine society clinical practice guideline. J Clin Endocrinol Metab. 2017;102(11):3869-3903.

3. Buchholz L. Transgender care moves into the mainstream. JAMA. 2015;314(17):1785-1787.

4. Sobralske M. Primary care needs of patients who have undergone gender reassignment. J Am Acad Nurse Pract. 2005;17(4):133-138.

5. Unger CA. Hormone therapy for transgender patients. Transl Androl Urol. 2016;5(6):877-884.

6. Kanhai RC, Hage JJ, van Diest PJ, Bloemena E, Mulder JW. Short-term and long-term histologic effects of castration and estrogen treatment on breast tissue of 14 male-to-female transsexuals in comparison with two chemically castrated men. Am J Surg Pathol. 2000;24(1):74-80.

7. Braun H, Nash R, Tangpricha V, Brockman J, Ward K, Goodman M. Cancer in transgender people: evidence and methodological consideration. Epidemiol Rev. 2017;39(1):93-107.

8. Brown GR, Jones KT. Incidence of breast cancer in a cohort of 5,135 transgender veterans. Breast Cancer Res Treat. 2015;149(1):191-198.

9. Van Kesteren PJ, Asscheman H, Megens JA, Gooren LJ. Mortality and morbidity in transsexual subjects treated with cross-sex hormones. Clin Endocrinol (Oxf). 1997;47(3):337-342.

10. Gooren LJ, van Trotsenburg MA, Giltay EJ, van Diest PJ. Breast cancer development in transsexual subjects receiving cross-sex hormone treatment. J Sex Med. 2013;10(12):3129-3134.

11. Johansen Taber KA, Morisy LR, Osbahr AJ III, Dickinson BD. Male breast cancer: risk factors, diagnosis and management (review). Oncol Rep. 2010;24(5):1115-1120.

12. Miksad RA, Bubley G, Church P, et al. Prostate cancer in a transgender woman, 41 years after initiation of feminization. JAMA. 2006;296(19):2316-2317.

13. Turo R, Jallad S, Prescott S, Cross WR. Metastatic prostate cancer in transsexual diagnosed after three decades of estrogen therapy. Can Urol Assoc J. 2013;7(7-8):E544-E546.

14. American College of Obstetricians and Gynecologists. ACOG committee opinion no. 556: postmenopausal estrogen therapy: route of administration and risk of venous thromboembolism. Obstet Gynecol. 2013;121(4):887-890.

15. Asscheman H, Gooren LJ, Eklund PL. Mortality and morbidity in transsexual patients with cross-gender treatment. Metabolism. 1989;38(9):869-873.

16. Asscheman H, Giltay EJ, Megens JA, de Ronde WP, van Trotsenburg MA, Gooren LJ. A long-term follow-up study of mortality in transsexuals receiving treatment with cross-sex hormones. Eur J Endocrinol. 2011;164(4):635-642.

17. Workowski KA, Bolan GA; Centers for Disease Control and Prevention. Sexually transmitted disease treatment guidelines, 2015. MMWR Recomm Rep. 2015;64(RR-03):1-137.

18. Gooren LJ, Wierckx K, Giltay EJ. Cardiovascular disease in transsexual persons treated with cross-sex hormones: reversal of the traditional sex difference in cardiovascular disease pattern. Eur J Endocrinol. 2014;170(6):809-819.

19. Streed CG Jr, Harfouch O, Marvel F, Blumenthal RS, Martin SS, Mukherjee M. Cardiovascular disease among transgender adults receiving hormone therapy: a narrative review. Ann Int Med. 2017;167(4):256-267.

Prostate Cancer Screening

Although the prostate gland will undergo atrophy with extended treatment with feminizing hormone therapy, there are case reports of prostate cancer in transgender women.^12,13 Usually these patients have started hormone treatment after age 50 years. Therefore, prostate cancer screening is recommended in transgender women as per general guidelines. Because the prostate-specific antigen (PSA) level is expected to be reduced, a PSA > 1.0 should be considered abnormal.¹

Cervical Cancer Screening

When a transgender man has a pap smear, it is essential to make it clear to the laboratory that the sample is a cervical pap smear (especially if the gender is marked as male) to avoid the sample being run incorrectly as an anal pap. Also, it is essential to indicate on the pap smear request form that the patient is on testosterone therapy and amenorrhea is present, because the lack of the female hormone can cause atrophy of cervix. This population has a high rate of inadequate specimens. Pretreatment with 1 to 2 weeks of vaginal estrogen can improve the success rate of inadequate specimens. Transgender women who have undergone vaginoplasty do not have a cervix, therefore, cervical cancer screening is not recommended. The anatomy of the neovagina has a more posterior orientation, and an anoscope is a more appropriate tool to examine the neovagina when necessary.

Hematology Health

Transgender women on cross-sex hormone therapy with estrogens may be at increased risk for a venous thromboembolism (VTE). In 2 European studies, patients treated with oral ethinyl estradiol as well as the anti-androgen cyproterone acetate were found to have up to 20 times increased risk of VTE. However, in later studies, oral ethinyl estradiol was changed to either oral conjugated estrogens or transdermal/intramuscular estradiol, and these studies did not show a significant increase in VTE risk.^14-16 Tobacco use in combination with estrogen therapy is associated with an increased risk of deep vein thrombosis (DVT).¹ All transgender women who smoke should be counseled on tobacco risks and cessation options at every visit.¹ The transgender individuals who are not willing to quit smoking may be offered transdermal estrogen, which has lower risk of DVT.^14-16

Sexual Health

Clinicians should assess the risks for sexually transmitted infection (STIs) or HIV for transgender patients based on current anatomy and sexual behaviors. Presentations of STIs can be atypical due to varied sexual practices and gender-affirming surgeries. Thus, providers must remain vigilant for symptoms consistent with common STIs and screen for asymptomatic STIs on the basis of behavior history and sexual practices.¹⁷ Preexposure prophylaxis for HIV should be considered when appropriate. Serologic screening recommendations for transgender people (eg, HIV, hepatitis B and C, syphilis) do not differ in recommendations from those for nontransgender people.

Cardiovascular Health

The effect of cross-hormone treatment on cardiovascular (CV) health is still unknown. There are no randomized controlled trials that have investigated the relationship between cross-hormone treatment and CV health. Evidence from several studies suggests that CV risk is unchanged among transgender men using testosterone compared with that of nontransgender women.^18,19 There is conflicting evidence for transgender women with respect to CV risk and cross-sex hormone treatment.^1,18,19 The current American College of Cardiology/American Heart Association guideline advises using the ASCVD risk calculator to determine the need for aspirin and statin treatment based on race, age, gender, and risk factors. There is no guideline on whether to use natal sex or affirmed gender while using the ASCVD calculator. It is reasonable to use the calculator based on natal sex if the cross-hormone treatment has started later in life, but if the cross-sex hormone treatment started at a young age, then one should consider using the affirmed gender to calculate the risk.