Abstract
The aim of this study was to report our technical experience and mid-term outcomes of robot-assisted redo ureteral reimplantation in adults following failed primary ureteral reimplantation. Twelve patients underwent robot-assisted redo ureteral reimplantation from December 2020 to May 2022 at double centers. Surgical procedures included anti-reflux dismembered submucosal tunnel reimplantation, anti-reflux dismembered nipple reimplantation, and anti-reflux non-dismembered submucosal tunnel reimplantation. The perioperative variables were prospectively collected, and the outcomes were assessed. Twelve patients underwent 13 robot-assisted redo ureteral reimplantations. Anastomotic stenosis was the primary cause of redo surgery, accounting for 83.3% of cases. Additionally, 83.3% of patients had received balloon dilation, stent placement, and other urological treatments after primary surgery. All patients successfully underwent robot-assisted redo ureteral reimplantation without conversion to open or laparoscopic surgery. All patients underwent anti-reflux technique, with 9 patients undergoing submucosal tunnel reimplantation (75%) and 3 nipple reimplantation (25%). Psoas hitch was required in eight patients (66.7%). The mean operative time was 129.3±29.0 minutes. The median postoperative hospitalization time was 3.0 (IQR, 3.0, 3.0) days. At a mean follow-up of 15.7±5.9 months, all patients achieved complete success with no severe complication. Two patients (16.7%) still experienced vesicoureteral reflux related symptoms postoperatively, which improved compared to preoperatively. Robotic redo ureteral reimplantation is safe and effective. The success of redo surgery is attributed to preoperative nephrostomy, clearing the fibrous scar surrounding the ureter, appropriate selection of anti-reflux technique, and psoas hitch when needed.
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