Pregnancy following urinary tract reconstruction using bowel segments: a review of published literature.

PURPOSE: To provide a literature review of the urological and obstetric outcomes during and after pregnancy following urinary diversion using bowel segments. METHODS: A systematic literature research by specific keywords was performed in February 2017. Relevant articles were assessed and available parameters such as, e.g., number of included patients, indication for and type of urinary diversion, birth mode and complications during and after pregnancy were evaluated. RESULTS: We found 61 relevant articles published between 1961 and 2017. Overall, data of 282 females carrying 330 babies within 395 pregnancies were listed. Birth was via vaginal delivery in 132 cases, while 183 females delivered via elective or emergency cesarean. The main urological complications during pregnancy were urinary tract infections, pyelonephritis and dilatation of the upper urinary tract. In total, 155 episodes of pyelonephritis (39.2%) were reported, but no major or persisting complications occurred. CONCLUSION: After urinary diversion, pregnancy is possible without major complications. Due to an increased risk of pyelonephritis and dilatation of the upper urinary tract requiring intervention, these pregnancies should be considered high risk. Vaginal delivery as well as delivery by cesarean is feasible, but should be carried out in centers of expertise with urological stand-by.

Pregnancy After Urinary Diversion at Young Ages-Risks and Outcome.

OBJECTIVE: To assess the urologic and obstetric outcomes during and after pregnancy following urinary diversion (UD) performed during childhood or adolescence. MATERIALS AND METHODS: From our UD database, we identified 25 women who became pregnant between 1981 and 2013. Reasons for UD were neurogenic bladder, exstrophy, trauma, sinus urogenitalis, and interstitial cystitis. Seventeen had continent cutaneous diversion, 4 had continent anal diversion, and 4 had colonic conduit. RESULTS: The average age at delivery was 27.8 (18-39) years. Thirty-seven pregnancies occurred; 1 patient decided for an induced abortion. Thirty-two healthy children were born. Five patients had a spontaneous abortion before the 12th week. Main urologic complications were urinary tract infections in 11 of 32 successful pregnancies. Twelve patients presented with dilatation of the upper urinary tract; 3 of them required a temporary nephrostomy tube. Four of 25 patients required an indwelling catheter because of difficulties of clean intermittent catheterization. One small bowel injury occurred during cesarean section. One patient with exstrophy developed uterine prolapse; 1 nipple prolapse was surgically repaired in the same anesthesia after the cesarean section. Two patients had 3 vaginal deliveries, whereas 28 had a cesarean section. All children were healthy, without malformation, and with mean Apgar scores of 7.8, 8.9, and 9.7 for the 1st, 5th, and 10th minutes of life, respectively. No persistent urologic complications were observed. CONCLUSION: After UD, pregnancy is possible without major complications. Because of an increased risk of pyelonephritis and dilatation of the upper urinary tract requiring intervention, these pregnancies should be considered high-risk pregnancies. Delivery should be carried out in a center of expertise with urologic standby.