Measure of hemodynamic patterns by thoracic electrical bioimpedance in normal pregnancy and in preeclampsia.

Objective: To compare the differences in the hemodynamics between normal pregnancy and preeclampsia, using thoracic electrical bioimpedance.

Study Design: We compared heart rate, end-diastolic volume, systolic volume, cardiac output, ejection fraction and peripheral vascular resistances in 18 healthy pregnant women with 15 with preeclamptic women at the following intervals: third trimester, 48 h post-partum, 2 and 6 months post-partum. We took the measurements by thoracic electrical bioimpedance.