Key result
Preeclampsia was characterized by elevated cardiac output before clinical diagnosis, followed by a crossover to low cardiac output and high peripheral resistance during the clinical phase.
Why the study?
What are the maternal central hemodynamic changes during the preclinical and clinical phases of gestational hypertension and preeclampsia?
Population
400 primigravidas
Comparison
Doppler echocardiography monitoring throughout… vs Normotensive controls
Design
Cohort
Follow-up
throughout pregnancy
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Hypothesis-generating for preclinical hemodynamic monitoring in preeclampsia; leaves open impact on risk stratification or intervention timing.
Cohort (n=400)
What are the maternal central hemodynamic changes during the preclinical and clinical phases of gestational hypertension and preeclampsia?
Preeclampsia is characterized by a hyperdynamic preclinical phase followed by a crossover to low cardiac output and high resistance, distinguishing it hemodynamically from gestational hypertension.
A 1999 study conducted a cohort in hypertensive disorders of pregnancy (n=400). Development of preeclampsia or gestational hypertension vs. normotensive controls was evaluated on maternal central hemodynamics (cardiac output and peripheral resistance). Preeclampsia was characterized by elevated cardiac output before clinical diagnosis, followed by a crossover to low cardiac output and high peripheral resistance during the clinical phase.
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