Is there a risk of lower segment scar rupture in pregnancy after multiple caesarean sections?

Abstract

SummaryFifty-nine carefully supervised obstetric patients, mean age 32-3 years, range 22-44, mean parity 5-2, range 4-13, who had had between 4 and 7 previous lower segment caesarean sections (mean 4-4) had elective abdominal deliveries at 38 weeks from 1972 to 1989 inclusive. There were no complications and in particular no cases of ruptured uterus were found.During the same time period, there were 6 proved cases of ruptured uterus, 4 after one previous caesarean section and 2 after 2. Their mean age was 33-1 (range 23-38), mean parity 5-8 (range 1-11). All these patients were in labour when their scar rupture was found.