ArticleInternational braz j urol : official journal of the Brazilian Society of Urology
Robot-Assisted Boari-flap after Orthotopic Neobladder Using the KangDuo Surgical Robot-01 System.
Article in International braz j urol : official journal of the Brazilian Society of Urology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeBenign ureteroenteric anastomosis stricture (BUES) is a well-recognized long-term complication following urinary diversion (1). While endourological interventions are often first-line, their success rates are limited (2, 3). Open uretero-ileal reimplantation remains the gold standard but is technically challenging and carries high complication risks (2). Robotic surgery offers a promising alternative with comparable success rates and minimally invasive benefits (4). In addition to the da Vinci® system, several new surgical robotic systems have been developed, demonstrating comparable safety and efficacy (5-7). This study reports our experience with robotic-assisted Boari-flap using the KangDuo-Surgical-Robot-01 (KD-SR-01) System in managing long-segment BUES after radical cystectomy with orthotopic neobladder. MATERIALS AND
methodsA 64-year-old man developed left BUES 2.5 years after robot-assisted radical cystectomy with orthotopic neobladder. After nephrostomy drainage for 6 months, a robotic-assisted Boari-flap was performed using the KD-SR-01 system in the Trendelenburg position. Surgical steps included: neobladder mobilization, distal ureter dissection, neobladder flap creation, ureter-flap anastomosis, and flap tubularization.
resultsSurgery was successful without conversion. The stricture length was 5 cm. The neobladder flap measured 5 × 3 cm (length × width). Operating time was 145 minutes, with 30 mL of blood loss. The nephrostomy tube and double-J stent were removed two months postoperatively. At three-month follow-up, the patient remained asymptomatic with stable serum creatinine. Cine magnetic resonance urography demonstrated normal ureteral peristalsis and ureteral jets. No postoperative complications occurred.
conclusionsRobotic-assisted Boari-flap after radical cystectomy with orthotopic neobladder is technically feasible. A larger cohort with longer follow-up is necessary to assess its safety and effectiveness.
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