C B Holzman1, P Senagore2, J Xu3, G L Dunietz4, K L Strutz5, Y Tian6, B L Bullen1, M Eagle7, J M Catov8,9. 1. Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI, USA. 2. Emeritus, Michigan State University, East Lansing, MI, USA. 3. Medtronic, Inc., Minneapolis, MN, USA. 4. Department of Neurology, University of Michigan, Ann Arbor, MI, USA. 5. Department of Obstetrics, Gynecology, and Reproductive Biology, Michigan State University, East Lansing, MI, USA. 6. Michigan Department of Health and Human Services, Lansing, MI, USA. 7. School of Nursing, University of Michigan, Ann Arbor, MI, USA. 8. Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA. 9. Magee-Womens Research Institute, Pittsburgh, PA, USA.
Abstract
OBJECTIVE: To assess whether pre-eclampsia (PE)-related placental/extraplacental membrane findings are linked to moderately elevated blood pressure (BP) in pregnancy and later-life hypertension. DESIGN: Prospective cohort. SETTING: 52 prenatal clinics, 5 Michigan communities. SAMPLE: The POUCH Study recruited women at 16-27 weeks' gestation (1998-2004) and studied a sub-cohort in depth. This sample (n = 490) includes sub-cohort women with detailed placental assessments and cardiovascular health evaluations 7-15 years later in the POUCHmoms follow-up study. METHODS: PE-related placental/extraplacental membrane findings (i.e. mural hyperplasia, unaltered/abnormal vessels or atherosis in decidua; infarcts) were evaluated in relation to pregnancy BP and odds of Stage 2 hypertension at follow up using weighted polytomous regression. Follow-up hypertension odds also were compared in three pregnancy BP groups: normotensives (referent) and moderately elevated BP with or without PE-related placental/extraplacental membrane findings. MAIN OUTCOME MEASURES: Stage 2 hypertension (SBP ≥140 mmHg and/or DBP ≥90 mmHg, or using antihypertensive medications) at follow up. RESULTS: After excluding women with pregnancy hypertension (i.e. chronic, PE, gestational), mural hyperplasia and unaltered/abnormal decidual vessels were each associated with Stage 2 hypertension at follow up: adjusted odds ratio (aOR) = 2.7, 95% CI 1.1-6.6, and aOR = 1.7 (95% CI 0.8-3.4), respectively. Women with moderately elevated BP in pregnancy and evidence of mural hyperplasia or unaltered/abnormal decidual vessels had greater odds of Stage 2 hypertension at follow up: aOR = 4.5 (95% CI 1.6-12.5 and aOR = 2.6, 95% CI 1.1-5.9, respectively. CONCLUSIONS: PE-related placental/extraplacental membrane findings help risk-stratify women with moderately elevated BP in pregnancy for later development of hypertension. TWEETABLE ABSTRACT: Placental findings associated with mother's risk of later-life hypertension.
OBJECTIVE: To assess whether pre-eclampsia (PE)-related placental/extraplacental membrane findings are linked to moderately elevated blood pressure (BP) in pregnancy and later-life hypertension. DESIGN: Prospective cohort. SETTING: 52 prenatal clinics, 5 Michigan communities. SAMPLE: The POUCH Study recruited women at 16-27 weeks' gestation (1998-2004) and studied a sub-cohort in depth. This sample (n = 490) includes sub-cohort women with detailed placental assessments and cardiovascular health evaluations 7-15 years later in the POUCHmoms follow-up study. METHODS: PE-related placental/extraplacental membrane findings (i.e. mural hyperplasia, unaltered/abnormal vessels or atherosis in decidua; infarcts) were evaluated in relation to pregnancy BP and odds of Stage 2 hypertension at follow up using weighted polytomous regression. Follow-up hypertension odds also were compared in three pregnancy BP groups: normotensives (referent) and moderately elevated BP with or without PE-related placental/extraplacental membrane findings. MAIN OUTCOME MEASURES: Stage 2 hypertension (SBP ≥140 mmHg and/or DBP ≥90 mmHg, or using antihypertensive medications) at follow up. RESULTS: After excluding women with pregnancy hypertension (i.e. chronic, PE, gestational), mural hyperplasia and unaltered/abnormal decidual vessels were each associated with Stage 2 hypertension at follow up: adjusted odds ratio (aOR) = 2.7, 95% CI 1.1-6.6, and aOR = 1.7 (95% CI 0.8-3.4), respectively. Women with moderately elevated BP in pregnancy and evidence of mural hyperplasia or unaltered/abnormal decidual vessels had greater odds of Stage 2 hypertension at follow up: aOR = 4.5 (95% CI 1.6-12.5 and aOR = 2.6, 95% CI 1.1-5.9, respectively. CONCLUSIONS: PE-related placental/extraplacental membrane findings help risk-stratify women with moderately elevated BP in pregnancy for later development of hypertension. TWEETABLE ABSTRACT: Placental findings associated with mother's risk of later-life hypertension.
Keywords:
Epidemiology: general obstetrics; maternal physiology; medical disorders in pregnancy; placental pathology; risk management; translational research
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