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KMID : 1011820210620010065
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Investigative and Clinical Urology
2021 Volume.62 No. 1 p.65 ~ p.71
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Intermediate-term outcomes after robotic ureteral reconstruction for long-segment (≥4 centimeters) strictures in the proximal ureter: A multi-institutional experience
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Lee Matthew
Lee Ziho
Koster Helaine
Jun Minsuk
Asghar Aeen M.
Lee Randall A.
Strauss David
Patel Neel
Kim Daniel
Komaravolu Sreeya
Drain Alice
Metro Michael J.
Zhao Lee C.
Stifelman Michael
Eun Daniel D.
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Abstract
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Purpose: To report our intermediate-term, multi-institutional experience after robotic ureteral reconstruction for the management of long-segment proximal ureteral strictures.
Materials and Methods: We retrospectively reviewed our Collaborative of Reconstructive Robotic Ureteral Surgery (CORRUS) database to identify all patients who underwent robotic ureteral reconstruction for long-segment (≥4 centimeters) proximal ureteral strictures between August 2012 and June 2019. The primary surgeon determined the specific technique to reconstruct the ureter at time of surgery based on the patient's clinical history and intraoperative findings. Our primary outcome was surgical success, which we defined as the absence of ureteral obstruction on radiographic imaging and absence of obstructive flank pain.
Results: Of 20 total patients, 4 (20.0%) underwent robotic ureteroureterostomy (RUU) with downward nephropexy (DN), 2 (10.0%) underwent robotic ureterocalycostomy (RUC) with DN, and 14 (70.0%) underwent robotic ureteroplasty with buccal mucosa graft (RU-BMG). Median stricture length was 4 centimeters (interquartile range [IQR], 4?4; maximum, 5), 6 centimeters (IQR, 5?7; maximum, 8), and 5 centimeters (IQR, 4?5; maximum, 8) for patients undergoing RUU with DN, RUC with DN, and RU-BMG, respectively. At a median follow-up of 24 (IQR, 14?51) months, 17/20 (85.0%) cases were surgically successful. Two of four patients (50.0%) who underwent RUU with DN developed stricture recurrences within 3 months.
Conclusions: Long-segment proximal ureteral strictures may be safely and effectively managed with RUC with DN and RU-BMG. Although RUU with DN can be utilized, this technique may be associated with a higher failure rate.
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KEYWORD
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Reconstructive surgical procedures, Robotic surgical procedures, Ureter
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