[Surgical learning curve for top-down two-knot laparoscopic pyeloplasty in congenital hydronephrosis in children].

Unlabelled: The aim was to evaluate the surgical learning curve and advantages of top-dow two-knot laparoscopic pyeloplasty in children with uretero-pelvic junction obstruction (UPJO).

Materials And Methods: A retrospective analysis of medical records regarding 98 patients from Speranskij Childrens Municipal Hospital No9, Moscow and Regional Clinical Hospital No7, Volgograd, aged from 3 to 24 months with unilateral hydronephrosis of varying degrees, according to the SFU classification (Society of Fetal Urology) in the Onen modification was carried out. LP in all children was performed in accordance with the Heins-Andersen technique, with minimal resection of the pelvis.