“…The supravesical urinary diversions, with intestinal loops can lead to posterior-deterioration of the superior urinary tract [10,13,14]. Vesicoureteral reflux is consid ered as one of the most important causes of pyelonephri tis and, hence, of the deterioration of the superior urinary tract [1,2,9]. Consequently, the surgical prevention of this reflux is of greatest importance.…”