Abstract

The harvesting of kidneys at small hospitals where standard flush solutions are not available has led to the use of several flush solutions that can be made from readily available materials. Mongrel dogs (15) had bilateral nephrectomy after receiving intravenously a mixture of Ringers lactate, furosemide (Lasix), mannitol, and chlorpromazine (Thorazine). One kidney was perfused with iced Collins solution and stored for 24 hours, submerged in the perfusate at 4 C. Five dogs each had the contralateral kidney perfused with a solution of either (1) Ringers lactate, salt-poor albumin, and heparin; (2) 6% dextran 70 and Fenwall buffered heparin solution; or (3) Ringers lactate, mannitol, and heparin, and were stored in their respective perfusate. After 24 hours storage the kidneys were transplanted into the neck, and creatinine clearance (Crcl) was determined on days 1, 2, 3, 5, and 7. The dogs were sacrificed on day 7 and biopsy specimens were obtained from each kidney for pathologic examination. The kidneys perfused with Collins solution had immediate function after transplantation with an average Crcl of 10.5 at 24 hours and 20.2 at seven days. The kidneys perfused with Ringers lactate and albumin had minimal function immediately after transplantation and were anuric within 24 hours. The kidneys perfused with dextran solution and Ringers lactate and mannitol solution had immediate function but output remained low, and by seven days the average Crcl was only 3.0 and 4.5 respectively. All solutions except the Ringers lactate and albumin were hyperosmolar, thus helping to prevent the “no reflow” phenomenon. These results indicate that the solutions tested do not result in adequate preservation to warrant clinical use.