Abstract
Purpose: This study assessed our hospital protocol of vaginal delivery for twins and evaluated whether trial of vaginal delivery (unless contraindicated) was as safe as elective cesarean. Risk factors leading to failed trial of labor (TOL) were characterized to improve our ability to advise patients and select cases for TOL.Methods: This retrospective, cohort study included women >32 weeks gestation, with twin A in cephalic presentation and no contraindications for vaginal delivery. Controls were women with twin pregnancy and planned cesarean delivery (PCD). Maternal and neonatal morbidity between TOL and PCD were compared. TOL group was subcategorized by vaginal or cesarean delivery to characterize pre-labor risk factors for failed TOL.Results: Of the 411 twins, 215 had TOL and 196 had PCD. Among TOL, 196/215 (91%) delivered vaginally. TOL was more likely to have spontaneous pregnancy, pregnancy complications and tended to deliver earlier. More TOL had postpartum hemorrhage (p < .05), although transfusion rates in each group were similar. Neonatal outcomes between groups did not differ. Induction and gestational age at delivery were risk factors for failed TOL.Conclusions: The results support the contemporary practice of TOL for twins at term when the first is in cephalic presentation with no other contraindications.
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