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Many providers ignore hypertensive blood pressures (BPs) during epidural placement, attributing them to patient pain or malposition. We aimed to determine if an elevated BP during epidural placement was associated with increased risk for developing a hypertensive disorder of pregnancy (HDP). Cohort study of previously normotensive nulliparous, singleton, term patients who received neuraxial analgesia and delivered at our institution in 2016. Primary exposure was BP during epidural window (one hour before and after epidural procedure start time). Primary outcome was HDP (gestational hypertension, preeclampsia, eclampsia, or HELLP syndrome) prior to discharge. Statistics included χ2, t-test, and multivariable logistic regression; α = 0.05. One thousand and eight hundred patients met study criteria. Patients with elevated BP during epidural window (n = 566, 31.4%) were more likely to develop HDP than patients who remained normotensive during epidural window (20.1% vs. 6.4%, adjusted OR 3.57 [95% CI 2.61-4.89]). The incidence of HDP increased in association with BP severity during epidural window: 7.3% for maximum systolic blood pressure (SBP) <140 mmHg; 18.4% for maximum SBP 140-159 mmHg (OR 2.9, 95% CI 2.0-4.0); and 29.9% for maximum SBP ≥160 mmHg (OR 5.4, 95% CI 2.9-9.8). The trend was similar for maximum diastolic BP. The magnitude of increased odds for HDP was highest for Black patients with elevated BP during epidural window (40.9% vs. 10.1%, OR 6.1, 95% CI 2.4-16). Previously normotensive patients with an elevated BP during labor epidural placement are significantly more likely to develop HDP than patients who remain normotensive. Elevated BP during epidural placement should not be disregarded to ensure timely diagnosis and treatment.

Citation

Gabriela Dellapiana, Megha Gupta, Richard M Burwick, Naomi Greene, Kimberly D Gregory. Elevated blood pressures during epidural placement are associated with increased risk of hypertensive disorders of pregnancy. The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians. 2022 Jan 25:1-6


PMID: 35078390

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