Trends in uterine rupture in Enugu, Nigeria.

Our objective was to determine the trend of rupture of the gravid uterus at Enugu, Nigeria and to determine any change in pattern of presentation, management and outcome of such patients. The birth register of 4,333 deliveries at the University of Nigeria Teaching Hospital Enugu from January 1997 and December 2000 were reviewed. Forty-one cases of ruptured uterus were identified and analysed. The incidence of uterine rupture was 1 in 106 deliveries with a mean maternal age of 31.2 years. The majority (75.6%) of the patients were multiparous and had some form of antenatal care (61%) with 19.5% of the total booked at the Teaching Hospital. Many (78.1%) of the patients were in labour for 24?hours or less and 22.0% had oxytocin to augment or induce labour. The majority (68.3%) had a previously scarred uterus and many (53.6%) had lower segment ruptures. At laparotomy 31.7% had repair alone, 29.2% had repair with tubal ligation, 22.0% subtotal hysterectomy and 17.1% total hysterectomy. Perinatal mortality was high (87.8%) and maternal mortality rate 48.8 per 1,000 deliveries. Labour in a previously scarred uterus was the most common aetiological factor followed by obstructed labour in a multiparous woman. The incidence of ruptured uterus is still rising at Enugu, Nigeria but maternal mortality, due to uterine rupture continues to fall. The most commonly performed surgery is repair with or without sterilisation rather than hysterectomy.