Early outcome findings of treatment for transperitoneal laparoscopy-assisted pyeloplasty

Abstract

Abstract Background We retrospectively analyzed the initial results of laparoscopic pyeloplasty, among pediatric patients undergoing the procedure by transperitoneal access. Methods We retrospectively reviewed the medical records of patients who were operated with transperitoneal laparoscopy-assisted pyeloplasty at our institution between 2015 and 2020. Results The mean age of the 51 patients (M/F = 36/15) was 59 ± 49.8 months. The mean preoperative renal pelvis anterior–posterior diameter was 32.9 ± 13.4 mm, and the relative renal function was 42 ± 12.1% on the operation side. Forty-three (84.3%) patients had no excretion on MAG3 examination preop. The number of patients with no excretion decreased to 10 (19.7%) after surgery. One of them underwent a successful endopyelotomy; eight of them underwent a successful laparoscopic re-pyeloplasty. There was nothing to do in only one patient whose DRF decreased to 11%. The mean anterior posterior diameter decreased significantly to 16.7 ± 11.2 mm after surgery (p < 0.001). Conclusion Preoperative increased renal pelvis anterior–posterior diameter detected in our study was found to be a risk factor in the failure of transperitoneal laparoscopy-assisted pyeloplasty procedure.