The effects of maternal position, in late gestation pregnancy, on placental blood flow and oxygenation: an MRI study.

ABSTRACT:

Key points

Maternal supine sleep position in late pregnancy is associated with an increased risk of stillbirth. Maternal supine position in late pregnancy reduces maternal cardiac output and uterine blood flow. Using MRI, this study shows that compared to the left lateral position, maternal supine position in late pregnancy is associated with reduced utero-placental blood flow and oxygen transfer across the placenta with an average 6.2% reduction in oxygen delivery to the fetus and an average 11% reduction in fetal umbilical venous blood flow.

Abstract

Maternal sleep position in late gestation is associated with an increased risk of stillbirth, though the pathophysiological reasons for this are unclear. Studies using magnetic resonance imaging (MRI) have shown that compared

SUBMITTER: Couper S 

PROVIDER: S-EPMC7613407 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature