[Complications of third stage labor and the puerperium in preterm and term deliveries].

Preterm delivery is the leading cause of perinatal morbidity and mortality worldwide. The purpose of the present study was to determine whether preterm delivery is associated with complications of the third stage of labor and of the puerperium. Retained placentas occurred more frequently in 99 women with preterm vaginal delivery than in 97 with term vaginal delivery (13.1% vs 1%, p = 0.003). There was a higher rate of endometritis in women delivering before term than in those delivering at term (10.1% vs 0%, p = 0.004). This study indicated that preterm labor and delivery is associated with higher rates of perinatal morbidity and mortality and with an increased risk of maternal complications.