[Rupture of the uterine cicatrix in vaginal delivery after a prior cesarean section].

In the present investigation 740 deliveries were followed-up after undergone one or more cesarean sections (29.30%). 420 of deliveries were studied retrospectively and 320-prospectively. 436 women (58.91%) out of 740 women with cesarean section underwent repeated cesarean section, but 304 women (41.09%) delivered vaginally. 340 women delivered vaginally all together and the uterine cicatrix ruptured in 4 women without cases with maternal mortality, but a child died on the second day after delivery. The number of pure ruptures of the cicatrix was 3 as the percentage corresponded to 0.98%. In conclusion the author thinks that the spontaneous and traumatic rupture of the intact uterus is complete and catastrophic frequently. On the contrary the rupture of transverse uterine cicatrix is incomplete most frequently without special consequences for the mother and fetus.