[Antecaval pyelopyelic anastomosis in retrocaval ureter]

Conservative surgery in retrocaval ureter consists of either ureteric resection with ureteroureteroanastomosis or antecaval ureteropyeloanastomosis without ureteric resection. Ureteroureteroanastomosis is often complicated by ureteric obstruction at the site of anastomosis. The authors offer in retrocaval ureter to establish antecaval pyelopyeloanastomosis which excludes anastomosis obstruction. The operative procedure is described. Good results were achieved in 3 children and 1 adult male treated.