Long-term comparative outcomes between 2 common ureteroneocystostomy techniques for renal transplantation

Area of Science:

• Urology
• Transplantation Surgery
• Nephrology

Background:

• Ureteral anastomosis is a critical step in renal transplantation.
• Two common techniques are the classic Lich-Gregoir and the single stitch (Shanfield) methods.
• Comparing complication rates is essential for optimizing surgical outcomes.

Purpose of the Study:

• To compare the incidence of ureteral complications between the Lich-Gregoir and Shanfield techniques in renal transplantation.
• To determine if the Shanfield technique is associated with a higher risk of specific ureteral issues.

Main Methods:

• Retrospective review of 713 renal transplant recipients.
• Categorization into Lich-Gregoir (360 patients) and Shanfield (353 patients) groups.
• Analysis of ureteral and non-ureteral complications at 3-5 year follow-up.

Main Results:

• The Shanfield group had a significantly higher rate of ureteral complications (15.6%) compared to the Lich-Gregoir group (3.9%).
• Specific complications in the Shanfield group included higher rates of ureteral leakage, hematuria, strictures, and stones.
• No significant differences were observed in urinary tract infections, delayed graft function, or rejection rates between the groups.

Conclusions:

• The Shanfield technique was associated with significantly more ureteral complications than the Lich-Gregoir technique.
• The Lich-Gregoir technique, particularly with stenting, is considered superior for ureteroneocystostomy in renal transplantation.
• Findings contrast with some previous reports, emphasizing the need for careful technique selection.