Cardiovascular Biomarkers and Blood Pressure at 6 Weeks and 6-12 Months Postpartum in Women With or Without Hypertensive Disorders During Pregnancy: A Prospective Study
DOI:
https://doi.org/10.31584/jhsmr.20231019Keywords:
blood pressure, cardiovascular disease, gestational hypertension, hypertension, postpartum, preeclampsiaAbstract
Objective: To measure and compare cardiovascular biomarkers and blood pressure in women with hypertensive disorders of pregnancy (HDP) to those with normotensive pregnancies evaluated at 6 weeks and 6-12 months after delivery.
Material and Methods: A prospective cohort study of postpartum women following HDP and normotensive pregnancies at 6 weeks and 6-12 months postpartum was conducted. Postpartum blood pressure and cardiovascular biomarkers including body mass index (BMI), levels of serum high-sensitivity C-reactive protein (hs-CRP), creatinine, glucose, glycated hemoglobin, low-density lipoprotein cholesterol, and levels of urine microalbumin/creatinine ratio (UACR), sodium, and potassium were quantified.
Results: A total of 118 women involving 40 with previous preeclampsia (PE), 27 with gestational hypertension (GHT), 10 with chronic hypertension (CHT) during recent pregnancy, and 41 normotensive pregnancies were enrolled at 6 weeks postpartum, of whom 73 (61.9%) completed the study at 6-12 months postpartum. Women in the PE and GHT groups had significantly elevated blood pressure, serum hs-CRP and hypertension at 6 weeks and 6-12 months postpartum. Both the PE and CHT groups had an increase in UACR at 6-12 months postpartum. Multivariate linear regression showed that a history of PE and GHT was independently and persistently associated with increased postpartum blood pressure.
Conclusion: Women with HDP had increased blood pressure, risk of hypertension, and increased levels of biomarkers associated with cardiovascular risk at both 6 weeks and 6-12 months postpartum, including serum hs-CRP and UACR. Women with HDP should be counselled about cardiovascular risks as early as 6 weeks postpartum.
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