Safety and efficacy of robot-assisted laparoscopic appendiceal flap in the treatment of complex ureteral strictures
ZHANG Wei
YANG Fan
XUE Wei
JIAO Dian
YAN Fengqi
LI Zhenyu
HOU Haozhong
QIU Jianxin
ZHAO Zhiguang
WANG He
ZHANG Geng
Abstract：Objective To evaluate the safety and efficacy of robot-assisted laparoscopic appendiceal flap repair for complex ureteral strictures(US).Methods A retrospective analysis was conducted on 7 patients with right US treated at Tangdu Hospital,Air Force Medical University from October 2022 to June 2024.The mean age was(39.43±11.27)years.Etiologies included postoperative ureteral stones(4 cases),surgical injury(2 cases),and post-pyeloplasty stricture(1 case).All patients had a history of multiple prior interventions,including balloon dilation and repeated ureteral stent placements.Stricture locations were mid-ureter(3 cases),upper ureter(3 cases),and combined mid-upper ureter(1 case),with a mean stricture length of(4.79±1.35)cm.Robot-assisted laparoscopic appendiceal flap reconstruction was performed.Parameters recorded included operative time,intraoperative blood loss,postoperative hospital stay,intra-/postoperative complications,and follow-up outcomes.Results All 7 procedures were successfully performed without intraoperative complications.Mean operative time was(167.86±17.99)min,estimated blood loss was(117.14±49.57)mL,and mean hospital stay was(7.29±1.11)d.No high-grade complications occurred.During a mean follow-up of(24.57±10.92)months,the surgical success rate was 100％.Conclusion Robot-assisted laparoscopic appendiceal flap reconstruction is a safe and effective technique for repairing long-segment mid-to-upper right US.
Keywords：ureteral strictureappendicealreconstructive surgical proceduresrobotic surgical procedureslaparoscopyureteroplastyminimally invasive surgerytreatment outcome
Publication Date：2025-09-30
Online Publishing Date：2026-08-26(First online date of this platform, not the publication date of the document)
Pages：5( 1148-1152 )