Vaginal delivery of breech-vertex twins.

The safety of vaginal birth for breech-vertex twins has not been addressed directly before. We retrospectively compared the perinatal outcome of two groups of breech-vertex twins: 24 delivered vaginally and 35 delivered abdominally. Vaginal delivery was allowed under the same protocol developed for singletons in breech presentation. Both groups had similar maternal and neonatal characteristics except for a significantly higher rate (P = .003) of pregnancies after infertility in the abdominal delivery group. Intergroup differences in perinatal outcome, as measured by Apgar scores and morbidity and mortality cases, were not significant. Our data suggest that if measures for safe vaginal delivery are taken, this route appears to incur no morbidity and mortality for breech-vertex twins.