A Carrel patch technique for renal transplantation in cats
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Updated: Feb 23, 2026

A Rat Orthotopic Renal Transplantation Model for Renal Allograft Rejection
Published on: February 2, 2022
Casey Budgeon1, Robert J Hardie1, Jonathan F McAnulty1
1Department of Surgical Sciences, University of Wisconsin-Madison, Madison, Wisconsin.
Objective:
To evaluate the feasibility of a Carrel patch method in feline renal transplantation.
Study Design:
Descriptive case series.
Animals:
Nine healthy donor cats and 9 client recipient cats with chronic renal failure.
Methods:
Renal transplantation was performed in 9 cats with chronic renal failure after collection of a donor's left kidney with a Carrel patch technique. A patch of donor aortic wall was removed with either 2 or 1 renal artery (ies) (n = 1 and 8 cats, respectively) central to the patch, with a cuff of tissue (≤1 mm) protruding from the base of the vessels. The Carrel patch was implanted in recipient cats with an end-to-side artery-to-aorta anastomosis, in a simple-continuous pattern of 9-0 nylon. The renal vein and ureter were implanted as previously described.
Results:
All donors and recipients survived surgery without vascular complication.
Conclusion:
The Carrel patch is a novel approach allowing the harvest of kidneys with multiple renal arteries. The technique also simplified the implant procedure, potentially decreasing the risks of bleeding and thrombosis.

