Methylene blue usage for determining accessory artery ligation in donor kidneys

Area of Science:

• Nephrology
• Transplant Surgery
• Vascular Surgery

Background:

• Accessory renal arteries in donor kidneys present a surgical challenge, requiring decisions on ligation versus preservation.
• Standard methods for assessing accessory arteries may not optimally preserve renal function.

Purpose of the Study:

• To evaluate the efficacy of methylene blue (MB) perfusion for determining accessory renal artery management in living-related donor kidney transplantation.
• To compare MB perfusion with conventional ligation methods regarding surgical outcomes and renal function.

Main Methods:

• A comparative study of 43 living-related donor kidneys with dual arteries.
• Methylene blue (MB) perfusion was used in 19 cases to assess accessory artery contribution (<10% ligated).
• Conventional ligation (diameter <2mm) was used in 24 cases; outcomes were compared.

Main Results:

• Successful kidney transplantation in all patients.
• Methylene blue (MB) group showed longer back-table surgical time but significantly lower serum creatinine 1 month post-operation.
• No significant differences in Doppler ultrasonography index or postoperative complications between groups.

Conclusions:

• Methylene blue (MB) perfusion is an effective technique for managing accessory renal arteries in donor kidneys.
• This method aids in preserving renal function post-transplantation without increasing complications.
• MB perfusion offers a valuable tool for surgical decision-making in kidney donors with dual arteries.