Robot-assisted, single-site, dismembered pyeloplasty for ureteropelvic junction obstruction with the New da Vinci Platform: A stage 2a study

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Abstract

Background Laparoendoscopic single-site surgery (LESS) has gained popularity in urology over the last few years. Objective To report a stage 2a study of robot-assisted single-site (R-LESS) pyeloplasty for ureteropelvic junction obstruction (UPJO). Design, setting, and participants This study is an investigative pilot study of 30 consecutive cases of R-LESS pyeloplasty performed at two participating institutions between July 2011 and September 2013. Surgical procedure Dismembered R-LESS pyeloplasty was performed at two surgical centers. Measurements Feasibility (conversion rate), safety (complication rate and Clavien-Dindo classification), efficacy (clinical outcome) of the procedure were assessed. Results and limitations The median patient age was 37 yr (range: 19-65 yr) and median body mass index was 23 kg/m2 (range: 19-29 kg/m2). The median operative time was 160 min (range: 101-300 min), the median postoperative stay was 5 d (range: 3-13 d), and the median time to catheter removal was 3 d (range: 2-10). Two cases required conversion, the first one to standard laparoscopic technique and the second one to standard robotic technique. No intraoperative complications were reported. In three cases, an additional 5-mm trocar was needed. The postoperative complications rate was 26% (n = 8). Most of them were grade 1 complications (n = 4; 13%), followed by grade 2 (n = 3; 10%) and grade 3 (n = 1; 3.3%) complications, according to the Clavien-Dindo classification. One patient needed a surgical reintervention with standard robotic technique 3 d after surgery for urinary leakage. The overall success rate, considered as the resolution of symptoms and the absence of functional impairment at postoperative imaging, was 93.3% (n = 28) at a median follow-up of 13 mo (range: 3-21 mo). The main limitations of this study are the limited number of patients included and the short-term follow-up. Conclusions Single-site robotic pyeloplasty is a feasible technique in selected patients, with good cosmetic results and excellent short-term clinical outcomes. Prospective studies are needed to further assess its role for the treatment of UPJO. Patient summary Single-site robot-assisted pyeloplasty is a feasible technique with good cosmetic results and excellent short-term clinical outcomes.

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Buffi, N. M., Lughezzani, G., Fossati, N., Lazzeri, M., Guazzoni, G., Lista, G., … Porpiglia, F. (2015). Robot-assisted, single-site, dismembered pyeloplasty for ureteropelvic junction obstruction with the New da Vinci Platform: A stage 2a study. European Urology, 67(1), 151–156. https://doi.org/10.1016/j.eururo.2014.03.001

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