Manual displacement of the uterus during Caesarean section

Abstract

Ninety ASA 1 and 2 pregnant women with term singleton pregnancies and no maternal and fetal complications, scheduled for elective or emergency Caesarean section, were randomly allocated to group LT (15° left lateral table tilt, n=45) and group MD (leftward manual displacement, n=45). Subarachnoid block was established with a 25-gauge spinal needle at the L3-L4 interspace using 1.5ml of 0.5% hyperbaric bupivacaine. A median sensory level of T6 was observed in both groups but the incidence of hypotension was markedly lower in group MD when compared to group LT (4.4% vs 40%; p < 0.001) with a significant reduction in mean (SD) ephedrine requirement (6 (0) vs 11.3 (4.9) mg; p < 0.001). The mean (SD) fall in systolic blood pressure was 28.8 (7.3) mmHg in group LT and 20 (12.7) mmHg in group MD. The time to maximum fall in systolic blood pressure was similar in both groups (4.5min). We conclude that manual displacement of the uterus effectively reduces the incidence of hypotension and ephedrine requirements when compared to 15° left lateral table tilt in parturients undergoing Caesarean section. © 2007 The Authors Journal compilation © 2007 The Association of Anaesthetists of Great Britain and Ireland.