Journal
AMERICAN JOURNAL OF TRANSPLANTATION
Volume 19, Issue 9, Pages 2543-2549Publisher
WILEY
DOI: 10.1111/ajt.15341
Keywords
clinical research; practice; complication; complication; medical; metabolic; complication; surgical; technical; graft survival; health services and outcomes research; pancreas; simultaneous pancreas-kidney transplantation; surgical technique
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In the early experience of pancreas transplantation, bladder drainage was favored, but it often caused urologic, metabolic, and infectious complications that necessitated conversion to enteric drainage. Long-term graft survival after enteric conversion and the impact of time interval from transplantation to enteric conversion on graft survival is poorly understood. We studied all bladder-drained first-time pancreas transplantations performed at the University of Wisconsin from 1985 to 2000. Time to conversion was estimated with the Kaplan-Meier technique, whereas risk factors associated with conversion were estimated via a time-varying Cox proportional hazards model. Of 386 bladder-drained pancreata, 162 (41.9%) eventually required enteric conversion, 29 (17.9%) within the first year. Median time to conversion varied by indication: 0.68 years for surgical, 3.1 years for urologic, and 2.7 years for metabolic disorders. In a time-varying Cox model adjusting for donor and recipient factors, enteric conversion did not affect the risk of pancreas graft loss (hazard ratio [HR] 0.86, P = .26). Kidney survival was not associated with enteric conversion. When necessary due to symptoms or complications, enteric conversion of bladder-drained pancreata is safe and does not affect overall graft survival. This relationship appears to be true no matter when the conversion is performed.
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