Abstract
Renal transplantation is a potential treatment for irreversible renal failure in pet cats. Our aim is to reduce warm ischemic time by using nonpenetrating vascular closure staples (VCS), thereby improving graft survival. Experimental cats were divided into the VCS group (n = 4; autotransplantation) or suture group (n = 6; allotransplantation). The renal artery was anastomosed with the external iliac artery in an end-to-end fashion, and the renal vein was attached to the external iliac vein in an end-to-side fashion. Warm ischemic time as well as arterial and venous anastomotic times were measured. Cats in the suture group were administrated cyclosporine and prednisolone orally after transplantation. Ischemic and anastomotic times in the VCS group were significantly reduced compared with the suture group. Two of 6 allografts had a ureteral anastomotic stricture, and 4 allografts were rejected. Histological findings of autografts showed normal structure. In conclusion, VCS staples were useful in feline renal transplantation.
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