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Association of hypertensive disorders of pregnancy with left ventricular remodeling later in life

Authors: Malamo E. Countouris, Flordeliza S. Villanueva, Kathryn L. Berlacher, Joo L. Cavalcante, W. Tony Parks, and Janet M. Catov

Summary:

Background: Hypertensive disorders of pregnancy (HDP) are associated with short-term cardiac structure and function abnormalities, but later life changes are not well studied.

Objectives: This study aimed to determine if HDP history is associated with echocardiographic differences 8 to 10 years after delivery, and if subgroups with placental maternal vascular malperfusion (MVM) lesions or current hypertension may be particularly affected.

Methods: Women with pregnancies delivered from 2008 to 2009 were selected from a clinical cohort with abstracted pregnancy and placental pathology data to undergo transthoracic echocardiography (2017 to 2020). Medical history, blood pressure, and weight were measured at the study visit.

Results: The authors enrolled 132 women (10 1 years post-delivery, age 38 6 years): 102 with normotensive pregnancies and 30 with HDP: pre-eclampsia (n = 21) or gestational hypertension (n = 9). Compared with women with normotensive pregnancies, those with HDP history were more likely to have current hypertension (63% vs. 26%; p < 0.001). After adjusting for age, race, MVM lesions, body mass index, current hypertension, and hemoglobin A1c, women with HDP history had higher interventricular septal thickness (β = 0.08; p = 0.04) and relative wall thickness (β = 0.04; p = 0.04). In subgroup analyses, those with both HDP history and current hypertension had a higher proportion of left ventricular remodeling (79.0%) compared with all other groups (only HDP [36.4%; p = 0.01], only current hypertension [46.2%; p = 0.02], and neither HDP nor hypertension [38.2%; p < 0.001]), and lower mitral inflow E/A and annular eʹ. Accounting for placental MVM lesions did not impact results.

Conclusions: Women with both HDP history and current hypertension have pronounced differences in left ventricular structure and function a decade after pregnancy, warranting continued surveillance and targeted therapies for cardiovascular disease prevention.

Source: Journal of the American College of Cardiology, 2021 Mar, 77 (8) 10571068