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Decreased postpartum exercise capacity after a diagnosis of pre-eclampsia: Implications for CVD risk prediction

Kathryn J Lindley1, Claire Barker2, Zainab Mahmoud3

  • 1Department of Medicine, Cardiovascular Division, Vanderbilt University Medical Center, Nashville, TN; Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, TN.

American Heart Journal
|June 29, 2024
PubMed

Insights

Hypertensive disorders of pregnancy, particularly preeclampsia with persistent postpartum hypertension, are linked to reduced exercise capacity. Clinical markers and echocardiographic findings predict postpartum exercise capacity in these women.

Area of Science:

  • Cardiology
  • Obstetrics
  • Exercise Physiology

Background:

  • Hypertensive disorders of pregnancy (HDP) increase long-term risks for cardiometabolic issues like chronic hypertension, obesity, and diabetes, as well as heart failure.
  • Reduced exercise capacity is a known predictor of heart failure in individuals with normal resting cardiac filling pressures.

Purpose of the Study:

  • To identify predictors of reduced postpartum exercise capacity in women with normotensive versus preeclamptic pregnancies.
  • To compare exercise capacity and related factors between normotensive, preeclampsia with resolved hypertension, and preeclampsia with persistent postpartum hypertension groups.

Main Methods:

  • A prospective observational cohort study involving participants with normotensive and preeclamptic pregnancies.
  • Bedside echocardiography within 48 hours of delivery and rest/exercise echocardiography 12 weeks postpartum.
  • Bruce protocol stress testing to assess exercise capacity.

Main Results:

  • Women with preeclampsia and persistent postpartum hypertension (PreE-HTN) showed higher resting blood pressure and less postpartum weight loss compared to normotensive and resolved preeclampsia groups.
  • PreE-HTN subjects achieved significantly lower exercise duration during stress testing.
  • Exercise-induced diastolic dysfunction was observed in the PreE-HTN group, with exercise duration negatively associated with factors like BMI, resting SBP, and LV mass index.

Conclusions:

  • Postpartum exercise stress testing capacity is associated with accessible clinical markers.
  • Pregnancy factors, echocardiographic parameters, and unresolved cardiometabolic risk factors are linked to postpartum exercise capacity.
  • These findings highlight the importance of monitoring exercise capacity and related clinical markers in women with a history of hypertensive disorders of pregnancy.
Abstract

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