Pregnancy following urinary diversion.

Five pregnancies were cared for in four patients who had undergone ureterosigmoid anastomosis or ileal conduit urinary diversions. The most common complication of pregnancy was urinary tract infection, ranging from asymptomatic bacteriuria to pyelonephritis. Significant obstruction of the diverted urinary tract failed to occur during gestation or delivery. Laboratory and radiographic studies demonstrated maintenance of baseline renal function. Offspring delivered showed appropriate growth for gestational age without associated anomalies. The authors' data and a review of the literature suggest that vaginal delivery is safe, and cesarean section may be reserved for obstetric indications. Pregnancy is not contraindicated after urinary diversion.