[Increased quality of the donor kidney due to en bloc binephrectomy (author's transl)].

The en bloc removal of both cadaver kidneys, approached transperitoneally, offers the following advantages in comparison with the separate bilateral technique: 1. Easy exposure of the renal artery and vein, even in the case of multiple renal vessels. -- 2. A venous and arterial patch of sufficient size is always available, facilitating the vascular anastomosis and reducing risk of vascular stenosis. -- 3. Damage due to ischemia is avoided or minimized by means of intraoperative perfusion. -- 4. Damage to the intima of the renal artery is avoided inasmuch the aorta instead of the renal artery is perfused. -- 5. Whenever a longterm perfusion by machine is considered, a rapidly constructed aortic conduit helps to avoid a potential damage to the intima of the renal artery by direct cannulation. -- 6. Separate mediocolonic removal of either kidney yields comparable results except the risk of damage to the intima. -- 7. A modification of the method is indicated, when both pancreas and kidneys are to be removed.