En-Bloc Transplantation of Dual Adult Kidneys with Multiple Vessels

Abstract

Background. To provide optimal nephron mass, two adult kidneys with suboptimal function can be transplanted into one single recipient. All techniques described to date are based on the lengthy sequential transplantation of one allograft after the other, in each iliac fossa, or through one long incision in the right iliac quadrant. Material and Methods. We report on a novel shorter and simpler operative technique allowing the en-bloc transplantation of seven dual adult kidneys with multiple vessels into a single iliac fossa, with revascularization through the donor aorta and vena cava. A proposal for the identification, allocation, procurement, and placement of the dual adult kidneys is presented. Results. There was no primary non-function, no thrombosis, and no urinary leakage. No urosepsis and hydronephrosis were noted during the follow-up. The operative time was 180 min. At 36 months, serum creatinine levels averaged 1.8 mg/dL (range 1.4–1.9 mg/dL). Conclusions. The procedure described permits converting two complex vascular kidneys into one en-bloc graft, which then can be transplanted into a single iliac incision, using only one arterial and one venous anastomoses. It avoids extensive dissection, shortens the operative time, and reduces the complications rate for the elderly recipients. It is applicable to the transplantation of dual kidneys with single or multiple arteries.