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Objective : To introduce our experience of concomitant laparoscopic pyeloplasty (LP) and pyelolithotomy via 19.5 F rigid nephroscope to treat ureteropelvic junction obstruction (UPJO) complicated with renal calculi. Methods : The data of 42 patients with UPJO who underwent LP from June 2016 to August 2019 were retrospectively reviewed. Twelve patients with ipsilateral renal calculi underwent LP and concomitant pyelolithotomy via 19.5 F rigid nephroscope. Perioperative data of this group were compared with other 12 matched patients without calculi who underwent LP only. Results : Of 12 patients with renal calculi, only 4 patients had simple stone and the other 8 patients suffered complex stones. Anatomical solitary kidney was found in 2 patients. The mean diameter of the largest stone was 1.1 cm (ranged from 0.6 to 1.7). The mean operative time was 171 min, the mean time of nephroscopic management was 17.2 min, 7 patients received pyelolithotomy by forceps, 3 patients received pyelolithotomy and ultrasonic lithotripsy, 1 patient received ultrasonic lithotripsy, the mean number of stones retrieved was 8.9 (ranged from 0-53), in one case the calculus was inaccessible because it was located in a narrow neck caliceal diverticulum. Overall stone-free rate was 91.7% (11/12). No difference in operative time, postoperative hemoglobin drop, postoperative hospital stay and incidence of complications was observed between the 2 groups. At the mean follow-up of 17.9 months, no patients had obstruction or recurrent stones. Conclusion : LP and concomitant pyelolithotomy via 19.5 F rigid nephroscope is a safe and feasible option to treat UPJO with renal calculi, with acceptable success rate and stone-free rate.

journal of investigative surgery

Concomitant Treatment of Ureteropelvic Junction Obstruction Complicated by Renal Calculi with Laparoscopic Pyeloplasty and Pyelolithotomy via 19.5F Rigid Nephroscope: A Report of 12 Cases