Laparoscopic Pyeloplasty: Always Dismembered?

Abstract

Objective: To compare three laparoscopic surgical techniques for the treatment of ureteropelvic junction obstruction (UPJO), assessing their difficulty, operating time, effectiveness, and complications.

Materials and methods: The clinical histories of 54 patients with UPJO who underwent a laparoscopic procedure between June 2003 and September 2013 were reviewed. Anderson-Hynes (A-H) pyeloplasty was performed on 34 patients, nondismembered pyeloplasty on 11 cases (8 Y-V Foley plasty and 3 Fenger plasty), and cephalad vascular displacement or Hellström technique (HT) on 9 patients. The patients were selected for the different techniques depending on the findings during the procedures, according to renal pelvic size and the presence of crossing vessels. We compared the techniques according to intraoperative and postoperative outcomes. Complications were interpreted following the Clavien-Dindo classification. The success rate was defined as the absence of clinical symptoms and normal diuretic renography. Analysis of variance and chi-square tests were used for the statistical analysis.

Results: Mean follow-up was 55.58 months. The success rate achieved was 88.5% for A-H pyeloplasty, 90.9% for nondismembered pyeloplasty, and 100% for HT (p > 0.05). HT was the least time-consuming: 124 ± 30 vs 202 ± 44 minutes of A-H pyeloplasty and 147 ± 27 minutes of nondismembered plasty (p < 0.005). Mean hospital stay was 6.7 ± 1.4 days for A-H pyeloplasty, 6.6 ± 2 days for nondismembered pyeloplasty, and 3.42 ± 1.5 days for HT (p < 0.05). The postoperative complication rate was 21.1% for A-H pyeloplasty, 18.8% for nondismembered pyeloplasty, and 12.5% for HT (p > 0.05). None of the cases required open surgery, and urinary fistula was the most frequent complication.

Conclusion: Intraoperative observation of ureteropelvic junction allows selecting cases to undergo nondismembered pyeloplasty techniques, achieving similar results to A-H pyeloplasty, reducing operating time, complication rate, and hospital stay.