Twin TOLAC is an independent risk factor for adverse maternal and neonatal outcome.

Twin TOLAC is not common, even in parturients highly motivated for TOLAC. Our results demonstrate that even in a selected population, women undergoing twin TOLAC are less likely to have a successful spontaneous vaginal delivery and have a higher risk for uterine rupture, maternal complications, and combined adverse perinatal outcome than women undergoing TOLAC with a singleton gestation. Demographic and obstetric risk factors were identified which can aid the attending obstetrician in the counseling of these challenging cases.