IMMUNOGENETIC AND CLINICAL FACTORS AFFECTING RENAL TRANSPLANTATION

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Abstract
A total of 3653 first cadaver kidney transplants in nondiabetic recipients over 15 years of age, performed in 30 transplant centers throughout the United Kingdom between 1978 and 1983, were analyzed to discover which of many recorded recipient, donor, surgical, and tissue-matching variables were important for graft survival, and in which postoperative period they exerted their maximum influence. A considerable effort was invested in checking the validity of the data and the appropriateness of the statistical methods. The duration of dialysis prior to transplantation was associated with a substantially reduced risk of graft failure particularly at later postoperative times. Good HLA-B locus matching was also found to enhance graft survival.sbd.but, by contrast, HLA-A locus matching showed no significant effect on survival. Recipient age over 45 years, high serum reactivity, and grafts with anoxia time (the interval between circulatory arrest and perfusion with ice) exceeding 10 min were found to be associated with poor graft survival. Trends in survival were identified across calendar years of transplant, such that early graft failure (0-15 days) had increased in recent years, whereas later graft failure (> 15 days) had declined.