STRIPPING OF MEMBRANES AS A SAFE METHOD TO REDUCE PROLONGED PREGNANCIES

Objective: To evaluate weekly stripping of membranes at term to determ ine its safety and effectiveness in reducing the incidence of prolonge d and postterm pregnancies. Methods: One hundred forty-two pregnant wo men with certain gestational dates were randomly selected to receive, starting at 38 weeks, either weekly stripping of membranes (73 patient s) or weekly gentle cervical examinations (69 patients). Results: Wome n who received stripping had earlier delivery (8.2 versus 12.2 days; P < .005) and less incidence of delivery at 41 weeks or greater (three versus 13 patients; P < .01). The reduction remained consistent for fa vorable and unfavorable Bishop scores, and for nulliparas and multipar as. Only three subjects in the study delivered at 42 weeks or greater. No woman reported rupture of membranes after stripping. Conclusion: S tripping of membranes is a safe method to reduce the incidence of prol onged pregnancies and the length of term gestations. Larger trials on populations with a higher incidence of postterm pregnancies are needed to evaluate its efficacy in reducing the incidence of postterm pregna ncies.