Why do secondary cadaver renal transplants succeed? Results of the South-Eastern Organ Procurement Foundation prospective study, 1977-1982.
We report the selective and therapeutic factors affecting multiple kidney transplant success from a prospective multicenter study of the South-Eastern Organ Procurement Foundation. From June 1977 to March 1982, 3,215 cadaver kidney transplants were performed at 39 institutions. There were 2,535 first, 564 second, 103 third and 13 fourth grafts. The actuarial graft survival rates at 1 and 2 years were 52 plus or minus 1 and 45 plus or minus 1 per cent, respectively, for first grafts, 44 plus or minus 2 and 40 plus or minus 3 per cent for second grafts, and 42 plus or minus 5 and 31 plus or minus 6 per cent for third grafts. Graft survival rates were significantly lower for second and third than for first transplants (p less than 0.003). There was no difference in patient survival rates. The data were analyzed to determine which selective and therapeutic variables governed success of primary and secondary grafts. Pre-transplant blood transfusions were associated with a significant increase in graft survival rates in primary (p less than 0.00005) and secondary transplants (p less than 0.01), and did not affect patient survival rates. The administration of antilymphocyte serum also improved graft survival rates significantly in primary (p less than 0.00005) and secondary grafts (p less than 0.00002), without alteration of patient survival rates. HLA compatibility improved primary graft survival rates (p less than or equal to 0.022) but this did not reach statistical significance in secondary graft survival rates. Second transplant graft survival rates were best when the primary graft functioned for more than 12 months (Breslow p less than or equal to 0.02) but were not related to the reason for loss of the first graft. Pre-transplant bilateral nephrectomy improved graft survival rates significantly but this phenomenon was linked to other treatment factors. No beneficial effect on graft survival rate could be shown after pre-transplant splenectomy in patients with primary or secondary grafts and this procedure was associated with reduced patient survival rates in both groups.
Spees, EK; Vaughn, WK; McDonald, JC; Bollinger, RR; Williams, GM; Sanfilippo, FP; Adams, P; Mendez-Picon, G; Niblack, G
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