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ANAHEIM, CALIF. – The first-ever study to examine the clinical utility of incorporating a history of hypertensive disorders of pregnancy into the American College of Cardiology/American Heart Association Atherosclerotic Cardiovascular Disease Risk Calculator in an effort to better delineate risk in women failed to show any added benefit.
But that doesn’t mean such a history is without value in daily clinical practice, Jennifer J. Stuart, ScD, asserted at the American Heart Association scientific sessions.
“While we did not demonstrate that hypertensive disorders of pregnancy improved cardiovascular risk discrimination in women, we do still believe – and I still believe – that hypertensive disorders of pregnancy remain an important risk marker for cardiovascular disease in women,” said Dr. Stuart of the Harvard School of Public Health, Boston.
“In this latest analysis we’ve demonstrated over a fourfold increased risk of chronic hypertension in these women in the first 5 years after delivery. So we do see increased risk very soon after delivery, and it persists for decades. And hypertensive disorders of pregnancy as a risk marker does offer practical advantages: ease of ascertainment, low cost, and availability earlier in life,” the researcher noted.
Her study hypothesis was that adding hypertensive disorders of pregnancy – that is, gestational hypertension and preeclampsia – and parity to the current ACC/AHA ASCVD Risk Calculator would enhance the tool’s predictive tool’s power in women.
“We wanted to know if a history of hypertensive disorders of pregnancy can be leveraged to capture women currently being missed in screening,” she explained.
Her expectation that this would be the case was based on solid evidence that hypertensive disorders of pregnancy, which occur in 10%-15% of all pregnancies, are associated with subsequent increased risk of cardiovascular events. For example, a meta-analysis of published studies involving nearly 3.5 million women, including almost 200,000 with a history of preeclampsia, showed that preeclampsia was associated with a 2.16-fold increased risk of ischemic heart disease during 11.7 years of follow-up (BMJ. 2007 Nov 10;335[7627]:974). This meta-analysis was among the evidence that persuaded the AHA in 2011 to formally add hypertensive disorders of pregnancy to the list of risk factors for cardiovascular disease in women (Circulation. 2011 Mar 22;123[11]:1243-62).
Dr. Stuart also incorporated parity in her investigational revised ASCVD risk model, because parity has been shown to be an independent risk factor of cardiovascular disease in a relationship described by a J-shaped curve.
She put the souped-up risk prediction model to the test by separately applying it and the current version to data from the longitudinal prospective Nurses’ Health Study II. For this analysis, nearly 68,000 female registered nurses were followed for new diseases every 2 years from 1989, when they were aged 25-42, through 2013. She and her coinvestigators applied the two 10-year risk-prediction models to the overall cohort and again separately to women at aged 40-49 and 50-59.
The bottom line: This might be because the nurses comprise a relatively low-risk population. Also, even though hypertensive disorders of pregnancy are associated with 10-year cardiovascular disease risk independent of the established risk factors, there may be enough overlap that the standard risk factors sufficiently capture the risk.
“It may be that the information on history of hypertensive disorders of pregnancy should be ascertained in the 20s and 30s, rather than waiting until age 40 or later, when we generally apply cardiovascular risk scores in practice. That [earlier assessment] may be a really important and valuable opportunity to identify these women at high risk and utilize primary prevention,” according to Dr. Stuart.
What’s next? “I’m certainly interested in educating these women about their increased risk. This is not something that’s done consistently across the country and across practices, and we really believe this is an important message for women to get when they deliver these pregnancies,” she added.
Dr. Stuart reported having no financial conflicts of interest regarding her study.
SOURCE: Stuart JJ. AHA Scientific Sessions.
ANAHEIM, CALIF. – The first-ever study to examine the clinical utility of incorporating a history of hypertensive disorders of pregnancy into the American College of Cardiology/American Heart Association Atherosclerotic Cardiovascular Disease Risk Calculator in an effort to better delineate risk in women failed to show any added benefit.
But that doesn’t mean such a history is without value in daily clinical practice, Jennifer J. Stuart, ScD, asserted at the American Heart Association scientific sessions.
“While we did not demonstrate that hypertensive disorders of pregnancy improved cardiovascular risk discrimination in women, we do still believe – and I still believe – that hypertensive disorders of pregnancy remain an important risk marker for cardiovascular disease in women,” said Dr. Stuart of the Harvard School of Public Health, Boston.
“In this latest analysis we’ve demonstrated over a fourfold increased risk of chronic hypertension in these women in the first 5 years after delivery. So we do see increased risk very soon after delivery, and it persists for decades. And hypertensive disorders of pregnancy as a risk marker does offer practical advantages: ease of ascertainment, low cost, and availability earlier in life,” the researcher noted.
Her study hypothesis was that adding hypertensive disorders of pregnancy – that is, gestational hypertension and preeclampsia – and parity to the current ACC/AHA ASCVD Risk Calculator would enhance the tool’s predictive tool’s power in women.
“We wanted to know if a history of hypertensive disorders of pregnancy can be leveraged to capture women currently being missed in screening,” she explained.
Her expectation that this would be the case was based on solid evidence that hypertensive disorders of pregnancy, which occur in 10%-15% of all pregnancies, are associated with subsequent increased risk of cardiovascular events. For example, a meta-analysis of published studies involving nearly 3.5 million women, including almost 200,000 with a history of preeclampsia, showed that preeclampsia was associated with a 2.16-fold increased risk of ischemic heart disease during 11.7 years of follow-up (BMJ. 2007 Nov 10;335[7627]:974). This meta-analysis was among the evidence that persuaded the AHA in 2011 to formally add hypertensive disorders of pregnancy to the list of risk factors for cardiovascular disease in women (Circulation. 2011 Mar 22;123[11]:1243-62).
Dr. Stuart also incorporated parity in her investigational revised ASCVD risk model, because parity has been shown to be an independent risk factor of cardiovascular disease in a relationship described by a J-shaped curve.
She put the souped-up risk prediction model to the test by separately applying it and the current version to data from the longitudinal prospective Nurses’ Health Study II. For this analysis, nearly 68,000 female registered nurses were followed for new diseases every 2 years from 1989, when they were aged 25-42, through 2013. She and her coinvestigators applied the two 10-year risk-prediction models to the overall cohort and again separately to women at aged 40-49 and 50-59.
The bottom line: This might be because the nurses comprise a relatively low-risk population. Also, even though hypertensive disorders of pregnancy are associated with 10-year cardiovascular disease risk independent of the established risk factors, there may be enough overlap that the standard risk factors sufficiently capture the risk.
“It may be that the information on history of hypertensive disorders of pregnancy should be ascertained in the 20s and 30s, rather than waiting until age 40 or later, when we generally apply cardiovascular risk scores in practice. That [earlier assessment] may be a really important and valuable opportunity to identify these women at high risk and utilize primary prevention,” according to Dr. Stuart.
What’s next? “I’m certainly interested in educating these women about their increased risk. This is not something that’s done consistently across the country and across practices, and we really believe this is an important message for women to get when they deliver these pregnancies,” she added.
Dr. Stuart reported having no financial conflicts of interest regarding her study.
SOURCE: Stuart JJ. AHA Scientific Sessions.
ANAHEIM, CALIF. – The first-ever study to examine the clinical utility of incorporating a history of hypertensive disorders of pregnancy into the American College of Cardiology/American Heart Association Atherosclerotic Cardiovascular Disease Risk Calculator in an effort to better delineate risk in women failed to show any added benefit.
But that doesn’t mean such a history is without value in daily clinical practice, Jennifer J. Stuart, ScD, asserted at the American Heart Association scientific sessions.
“While we did not demonstrate that hypertensive disorders of pregnancy improved cardiovascular risk discrimination in women, we do still believe – and I still believe – that hypertensive disorders of pregnancy remain an important risk marker for cardiovascular disease in women,” said Dr. Stuart of the Harvard School of Public Health, Boston.
“In this latest analysis we’ve demonstrated over a fourfold increased risk of chronic hypertension in these women in the first 5 years after delivery. So we do see increased risk very soon after delivery, and it persists for decades. And hypertensive disorders of pregnancy as a risk marker does offer practical advantages: ease of ascertainment, low cost, and availability earlier in life,” the researcher noted.
Her study hypothesis was that adding hypertensive disorders of pregnancy – that is, gestational hypertension and preeclampsia – and parity to the current ACC/AHA ASCVD Risk Calculator would enhance the tool’s predictive tool’s power in women.
“We wanted to know if a history of hypertensive disorders of pregnancy can be leveraged to capture women currently being missed in screening,” she explained.
Her expectation that this would be the case was based on solid evidence that hypertensive disorders of pregnancy, which occur in 10%-15% of all pregnancies, are associated with subsequent increased risk of cardiovascular events. For example, a meta-analysis of published studies involving nearly 3.5 million women, including almost 200,000 with a history of preeclampsia, showed that preeclampsia was associated with a 2.16-fold increased risk of ischemic heart disease during 11.7 years of follow-up (BMJ. 2007 Nov 10;335[7627]:974). This meta-analysis was among the evidence that persuaded the AHA in 2011 to formally add hypertensive disorders of pregnancy to the list of risk factors for cardiovascular disease in women (Circulation. 2011 Mar 22;123[11]:1243-62).
Dr. Stuart also incorporated parity in her investigational revised ASCVD risk model, because parity has been shown to be an independent risk factor of cardiovascular disease in a relationship described by a J-shaped curve.
She put the souped-up risk prediction model to the test by separately applying it and the current version to data from the longitudinal prospective Nurses’ Health Study II. For this analysis, nearly 68,000 female registered nurses were followed for new diseases every 2 years from 1989, when they were aged 25-42, through 2013. She and her coinvestigators applied the two 10-year risk-prediction models to the overall cohort and again separately to women at aged 40-49 and 50-59.
The bottom line: This might be because the nurses comprise a relatively low-risk population. Also, even though hypertensive disorders of pregnancy are associated with 10-year cardiovascular disease risk independent of the established risk factors, there may be enough overlap that the standard risk factors sufficiently capture the risk.
“It may be that the information on history of hypertensive disorders of pregnancy should be ascertained in the 20s and 30s, rather than waiting until age 40 or later, when we generally apply cardiovascular risk scores in practice. That [earlier assessment] may be a really important and valuable opportunity to identify these women at high risk and utilize primary prevention,” according to Dr. Stuart.
What’s next? “I’m certainly interested in educating these women about their increased risk. This is not something that’s done consistently across the country and across practices, and we really believe this is an important message for women to get when they deliver these pregnancies,” she added.
Dr. Stuart reported having no financial conflicts of interest regarding her study.
SOURCE: Stuart JJ. AHA Scientific Sessions.
REPORTING FROM THE AHA SCIENTIFIC SESSIONS
Key clinical point: The ACC/AHA Atherosclerotic Cardiovascular Disease Risk Calculator doesn’t do a better job of predicting 10-year risk in women when a history of hypertensive disorders of pregnancy is added into the formula.
Major finding: Incorporating a woman’s history of hypertensive disorders of pregnancy into the Atherosclerotic Cardiovascular Disease Risk Calculator doesn’t improve the tool’s accuracy in predicting 10-year risk.
Study details: An analysis of data from the longitudinal, prospective Nurses’ Health Study II.
Disclosures: The study presenter reported having no financial conflicts of interest.
Source: Stuart JJ. AHA Scientific Sessions.