TY - JOUR
T1 - The effectiveness of sweeping membranes at term
T2 - A randomized trial
AU - Crane, Joan
AU - Bennett, Kelly
AU - Young, David
AU - Windrim, Rory
AU - Kravitz, Heidi
PY - 1997/4
Y1 - 1997/4
N2 - Objective: To determine whether sweeping or stripping membranes at 38- 40 weeks' gestation leads to spontaneous labor within 7 days. Methods: One hundred fifty antenatal low-risk patients at 38-40 weeks' gestation were assigned randomly to sweeping or control (ie, Bishop score only) groups and stratified based on the ability to pass a finger through the internal os. The primary outcome was the rate of spontaneous labor within 7 days. Major secondary outcomes included the spontaneous labor rate before 41 weeks and the overall spontaneous labor rate. Other outcomes included maternal and neonatal morbidity. The sample size was calculated based on doubling of the spontaneous labor rate within 7 days from 28% to 56% (α = 0.05, β = 0.10). Results: The subjects were demographically similar between the groups. There were no differences between the groups in the primary outcome of spontaneous labor within 7 days (33% sweeping, 38% control; P = .39) or in the secondary outcomes of spontaneous labor before 41 weeks (P = .66) or the overall spontaneous labor rate (P = .09). The Bishop score predicted spontaneous labor within 7 days (P = .003), and gestational age at enrollment predicted spontaneous labor before 41 weeks (P = .008) and the overall spontaneous labor rate (P = .008), using logistic regression to control for potential confounders. Conclusions: Sweeping membranes once at 38-40 weeks' gestation does not significantly increase the proportion of women who begin spontaneous labor within 7 days.
AB - Objective: To determine whether sweeping or stripping membranes at 38- 40 weeks' gestation leads to spontaneous labor within 7 days. Methods: One hundred fifty antenatal low-risk patients at 38-40 weeks' gestation were assigned randomly to sweeping or control (ie, Bishop score only) groups and stratified based on the ability to pass a finger through the internal os. The primary outcome was the rate of spontaneous labor within 7 days. Major secondary outcomes included the spontaneous labor rate before 41 weeks and the overall spontaneous labor rate. Other outcomes included maternal and neonatal morbidity. The sample size was calculated based on doubling of the spontaneous labor rate within 7 days from 28% to 56% (α = 0.05, β = 0.10). Results: The subjects were demographically similar between the groups. There were no differences between the groups in the primary outcome of spontaneous labor within 7 days (33% sweeping, 38% control; P = .39) or in the secondary outcomes of spontaneous labor before 41 weeks (P = .66) or the overall spontaneous labor rate (P = .09). The Bishop score predicted spontaneous labor within 7 days (P = .003), and gestational age at enrollment predicted spontaneous labor before 41 weeks (P = .008) and the overall spontaneous labor rate (P = .008), using logistic regression to control for potential confounders. Conclusions: Sweeping membranes once at 38-40 weeks' gestation does not significantly increase the proportion of women who begin spontaneous labor within 7 days.
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U2 - 10.1016/S0029-7844(97)00004-5
DO - 10.1016/S0029-7844(97)00004-5
M3 - Article
C2 - 9083317
AN - SCOPUS:0031127182
SN - 0029-7844
VL - 89
SP - 586
EP - 590
JO - Obstetrics and Gynecology
JF - Obstetrics and Gynecology
IS - 4
ER -