The effect of body position on maternal cardiovascular function during sleep and wakefulness in late pregnancy
Anna Ishkova, Danielle L Wilson, Mark E Howard, Susan P Walker, Maree Barnes, Christian L Nicholas, Amy S Jordan
The Journal of Maternal-Fetal & Neonatal Medicine | TAYLOR & FRANCIS LTD | Published : 2020
INTRODUCTION: An association between the increased risk of late stillbirth and the maternal supine sleeping position has been recently established. The risk of stillbirth following supine sleep has been suspected to occur as a result of aortocaval compression by the gravid uterus. A number of studies conducted during wakefulness have reported compromised cardiovascular function during supine rest, as demonstrated by reductions in cardiac output, blood pressure and utero-placental blood flow. It remains unclear whether similar effects are also present during sleep, due to the presence of key sleep-specific changes in cardiovascular function. OBJECTIVE: To investigate the changes in maternal c..View full abstract
This research was supported by the Institute for Breathing and Sleep, the Austin Medical Research Foundation and the Medical Research Foundation for Women and Babies. D. Wilson was supported by a National Health and Medical Research Council (NHMRC) postgraduate scholarship.