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Clin Transpl. 1988:409-34.

Clinical transplants 1988. Overview.


1. The 3-month actual graft survival of 6-antigen matched transplants in the UNOS program was 96% compared to 85% in control kidneys which were not shipped (p = 0.004). Actuarial graft survival at 1 year was 89% for the 6-antigen matched kidneys and 78% for the controls (p = 0.02). 2. Several individual centers reported 1-year graft survival rates of 85-95% (in the first half of this volume). Various immunosuppressive protocols and attention to patient care resulted in high 10-year survival of 53% in 1 instance (Leuven). 3. The 1-year graft survival peaked at about 77% for transplants performed in 1985, 1986, and 1987. 4. Among transplants performed since 1984, HLA matching of cadaver donor transplants showed a 13% difference at 1 year between the best and worst A,B,DR matches, which expanded in 3 years to an 18% difference. 5. The center effect, which produces about a 13% difference in 1-year graft survival for cadaver donors, decreased to 0 in HLA-identical transplants. Thus, when the donor and recipient were histocompatible, all centers were able to achieve superior results. The results of the 6-antigen Match Study appear to validate this conclusion. 6. Preformed antibody is associated with a 9% decrease in graft survival for greater than 50% PRA in first grafts and 4% in second grafts. For peak antibodies, the difference was 7% for first grafts and 11% for second grafts. 7. Platelet flow cytometry in 23 patients with a positive flow cytometry crossmatch to T cells furnished a further refinement in grouping the patients. All 11 patients with a negative platelet crossmatch had functioning grafts at 1 month whereas only 5 of 12 patients with a positive platelet crossmatch had a functional graft at 1 month (p = 0.003). 8. The duration of first graft effect on the second graft has diminished considerably as immunosuppression improved. Patients whose first graft survived more than a year and who had a high 1-year graft survival of the second graft lost their second graft at an accelerated rate after the first year. At the end of 4 years, their survival was the same as that of the responder patients who had rejected their first grafts within 3 months. 9. False positive crossmatches, especially in "highly" sensitized patients were identified by the use of DTT. Transplants into 69 patients who were positive by the standard test but negative after DTT had a 94% 1-month function rate.(ABSTRACT TRUNCATED AT 400 WORDS)

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