Use of UW Solution in Pancreas Transplantation

We have recently reported successful 72-h preservation of the canine pancreas with a new ••ld-storage solution developed at the University of Wisconsin (UW solution). Over 10 mo, we performed 11 combined pancreas-kidney and 4 isolated-pancreas transplants with this solution. In situ cooling of the donor pancreas was performed with 1000 ml of UW solution followed by ex vivo perfusion with an additional 250–500 ml. Graft preservation times ranged from 3 to 19 h (mean 10.2 h). Pancreas transplants were vascularized whole-organ grafts with pancreaticoduodenocystostomy. Early graft function was excellent as assessed by immediate insulin independence, high urinary amylase and low serum amylase levels, and a technetium perfusion index indicating good pancreatic blood flow. There were no episodes of primary nonfunction, graft pancreatitis, or vascular thrombosis. Actuarial patient and graft survival at 1 mo was 92.9%. We conclude that UW solution provides excellent early graft function for up to 19 h of cold storage. Based on previously reported data on its efficacy in liver and kidney preservation, UW solution seems ideally suited as a universal intraaortic flush and cold-storage solution.