Surface cooling and surface cooling plus 24 hours of pulsatile perfusion with oxygenated plasma were compared in a controlled study of methods of renal storage for transplantation. Using an immediate contralateral nephrectomy model, it was found that the three- and sixhour surface cooling ischemic interval could be extended at least 24 hours, and that some bettering of renal function occurred in perfusion-stored kidneys. This method is recommended for clinical transplantation.
Eilert JB, Eggert DE, Derlacki DJ, Bergan JJ. Kidney Graft Storage After Surface Cooling. Arch Surg. 1971;102(3):197–198. doi:10.1001/archsurg.1971.01350030035009