Ruptured uterus in pregnancy: a Canadian hospital's experience.
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Between 1966 and 1985, 15 cases of complete rupture of the uterus in pregnancy were identified among 52,854 deliveries at Foothills Provincial General Hospital, Calgary, for an incidence rate of 0.3 per 1000 deliveries. Previous cesarean section (in seven patients) was not the only predisposing factor: a history of dilatation and curettage (in two patients) or laparoscopy (in one) were also implicated. Long, obstructed labour did not appear to be a factor. Rupture also occurred in patients at low risk. The most frequent immediate complication was hypotension, in five patients. The rupture site was repaired in 11 of the patients; the other 4 underwent hysterectomy. Close surveillance and prompt intervention are the keys to good fetal and maternal outcome.
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