[Complications of pyelo-ureteral duplications in children and their surgical treatment. Apropos of 69 cases (78 pathogenic duplications)].

The authors report their experience on the surgical treatment of 69 infants and children with pyelo-ureteral duplication. Urinary infection was the main revealing symptom (52 cases). Vesico-ureteral reflux was the major associated anomaly (39 cases) involving most often the lower pole ureter; the surgical correction of the reflux was performed according to the technique of Cohen with a favorable outcome in all cases. Because of poorly functioning and dysplastic upper renal segment, partial upper pole nephrectomy was performed in 8 among 12 cases of associated ectopic ureteral orifice and in 9 among 15 cases of associated ureterocele. A reimplantation of the ureter was made possible in 3 cases of ectopic ureteral orifice and in 5 cases of ureterocele with little corresponding renal lesions. With the experience of one neonate who died from septic shock following partial nephrectomy there were no other post-operative complications in this series.