ACC-AHA Diagnostic Criteria for Hypertension in Pregnancy Identifies Patients at Intermediate Risk of Adverse Outcomes.

The aim of the study is to compare maternal and neonatal outcomes among patients who are normotensive, hypertensive by Stage I American College of Cardiology-American Heart Association (ACC-AHA) criteria, and hypertensive by American College of Obstetricians and Gynecologists (ACOG) criteria. Secondary analysis of a prospective first trimester cohort study between 2007 and 2010 at three institutions in Baltimore, MD, was conducted. Blood pressure at 11 to 14 weeks' gestation was classified as (1) normotensive (systolic blood pressure [SBP] <130 mm Hg and diastolic blood pressure [DBP] <80 mm Hg); (2) hypertensive by Stage I ACC-AHA criteria (SBP 130-139 mm Hg or DBP 80-89 mm Hg); or (3) hypertensive by ACOG criteria (SBP ≥140 mm Hg or DBP ≥90 mm Hg). Primary outcomes included preeclampsia, small for gestational age (SGA) neonate, and preterm birth. Among 3,422 women enrolled, 2,976 with delivery data from singleton pregnancies of nonanomalous fetuses were included. In total, 20.2% met hypertension criteria (Stage I ACC-AHA Pregnant patients with Stage I ACC-AHA hypertension in the first trimester had higher rates of preeclampsia, preterm birth, and SGA neonates compared with normotensive women. Adverse maternal and neonatal outcomes were numerically lower in the Stage I ACC-AHA group compared with the ACOG group, but these comparisons only reached statistical significance for preterm birth. Optimal pregnancy management for first trimester Stage I ACC-AHA hypertension requires active study. · Women with first trimester American College of Cardiology-American Heart Association (ACC-AHA) Stage I hypertension were more likely to develop preeclampsia, deliver preterm, and deliver a small-for-gestational age neonate than normotensive women.. · Women with first trimester American College of Obstetricians and Gynecologists (ACOG) hypertension (consistent with stage II ACC-AHA hypertension) had the highest numeric rate of adverse outcomes; however, compared with Stage I ACC-AHA hypertension, there was only statistically significant difference for preterm delivery.. · The risk profile for pregnant women with Stage I ACC-AHA hypertension and women with hypertension by conventional ACOG criteria may be more similar than previously understood..

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