Effect of change in posture on maternal functional hemodynamics at 35 –37 weeks’ gestation

ConclusionsParadoxically, in late third trimester normal pregnancies both change from the supine to the sitting position and passive leg raising may result in increase in preload with consequent increase in cardiac index and stroke volume index and decrease in total peripheral resistance index. In pregnancies that develop PE or GH the effects of postural change on cardiovascular parameters are similar but less marked than in normotensive pregnancies.
Source: Ultrasound in Obstetrics and Gynecology - Category: Radiology Authors: Tags: Original Paper Source Type: research