• Masaaki Tanaka, Yoshiaki Hori, Aya Shirafuji, Mitsunori Kato, Jyun Kato, Hiroto Kobayashi, Toru Tsuchida, and Tsukasa Fukae.
• Department of Obstetrics and Gynecology, Fukui Prefectural Hospital, Fukui, Japan.
• Gynecol. Obstet. Invest. 2017 Jan 1; 82 (5): 446-452.

ObjectivesTo create awareness about a surgical technique termed bridge suture, which is performed as a pretreatment before a McDonald cerclage is performed on an emergency to treat severe cervical insufficiency.MethodsProcedures for bridge suture were reviewed in detail and outcomes of 16 patients treated with bridge suture followed by McDonald cerclage were evaluated retrospectively.ResultsUsing the bridge suture, the edges of uterine cervix were temporarily sutured and the external uterine os was closed, while the hourglass-shaped fetal membranes were concomitantly confined within the cervix; subsequently, a McDonald cerclage was performed. Over a 22-year period, 16 patients with a dilated cervix and bulging fetal membranes were treated using the technique of bridge suture followed by an emergency cerclage. The mean gestational age at cerclage was 22.5 weeks; the mean gestational age at delivery was 30.7 weeks; and the mean interval between cerclage and delivery was 8.2 weeks. In 15 out of 16 cases, cerclage was performed without encountering any complications. No maternal complications, including cervical laceration, were observed. The mean body weight of 17 neonates, including that of a twin, was 1,516 g and of them, 15 neonates survived.ConclusionThe important outcome of bridge suture is the replacement of fetal membranes back into the uterine cavity before McDonald's cerclage is performed. Pretreatment with bridge suture may facilitate the performance of a successful emergency cerclage and contribute to good maternal and neonatal outcomes.© 2016 S. Karger AG, Basel.

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