Journal
HYPERTENSION IN PREGNANCY
Volume 42, Issue 1, Pages -Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10641955.2023.2272176
Keywords
Pregnancy hypertensive disorders; bioreactance; hemodynamic parameters; resistant hypertension; hypertensive crisis
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Pregnant patients experiencing hypertensive crisis and exhibiting a hypodynamic profile are more likely to develop resistant hypertension.
Objective: Reducing maternal morbidity and mortality has been a challenge for low and middle-income countries, especially in the setting of hypertensive disorders of pregnancy. Improved strategies for treating obstetric patients with resistant hypertension are needed. We sought to explore whether hemodynamic parameters may be used to identify patients that develop resistant hypertension in pregnancy.Methods: Retrospective cohort study among pregnant patients with gestational hypertension or preeclampsia that experienced severe blood pressure elevations. Hemodynamic variables were evaluated, including cardiac output (CO), and total peripheral resistance (TPR). The primary endpoint was resistant hypertension. An exploratory logistic regression was performed to evaluate the association between the hemodynamic profile and the development of resistant hypertension. Adverse maternal and fetal outcomes were additionally described according to the presence of resistant hypertension.Results: Fifty-seven patients with severe pregnancy hypertension were included, of whom 34 developed resistant hypertension (59.7%). The resistant hypertension group, in comparison to those without resistant hypertension, presented with a hypodynamic profile characterized by reduced CO < 5 L/min (41.2% vs. 8.7%, p: 0.007), and increased TPR > 1400 dyn-s/cm5 (64.7% vs. 39.1%, p: 0.057). Logistic regression analysis revealed an association between a hypodynamic profile and resistant hypertension (OR 3.252, 95% CI 1.079-9.804; p = 0.035). Newborns of the resistant hypertension group had more frequent low birth weight (<2500 g), low Apgar scores, ICU admissions, and acute respiratory distress syndrome.Conclusion:Patients experiencing hypertensive crisis during pregnancy and exhibiting a hypodynamic profile (TPR >= 1400 dyn center dot s/cm(5) and CO <= 5 L/min) developed higher rates of resistant hypertension.
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