[Transanastomosis in pyeloplasty of the pyeloureteral junction syndrome: comparative study of 72 cases].

The role of the urinary by-pass and the indications of its utilisation in the treatment of the pyelourethral union syndrome a been a matter of continual controversy. As a results, there have been no objective data for their preference on the part of surgeons. We present an analysis of 72 pyeloplasties carried out by the surgery team of our hospital over a period of 8 years, in order to determine the influence in the postoperative process and the long term effects of its use or nonuse in patients of pediatric age.