PMID- 10808155 OWN - NLM STAT- MEDLINE DCOM- 20000623 LR - 20191210 IS - 1053-2498 (Print) IS - 1053-2498 (Linking) VI - 19 IP - 5 DP - 2000 May TI - Does human leukocyte antigen matching influence the outcome of lung transplantation? An analysis of 3,549 lung transplantations. PG - 473-9 AB - BACKGROUND AND OBJECTIVE: Human leukocyte antigen (HLA) compatibility has been shown to improve the outcome of renal and cardiac transplantation. However, its impact on outcome following lung transplantation is not clear, with several single-center studies reporting inconsistent results. We studied the influence of HLA matching on survival and the development of rejection and obliterative bronchiolitis after lung transplantation, using data from the United Network for Organ Sharing/International Society for Heart and Lung Transplantation registry. METHODS: The study population included adult patients who received cadaveric lung transplants between October 1987 and June 1997 for whom HLA data were available. Two cohorts were examined, depending on the era of transplantation: (1) October 1987 to June 1997 (n = 3,549): Differences in actuarial survival as stratified by either the total number of HLA mismatches or the number of mismatches at each HLA locus were determined using a log-rank test. Multivariate logistic regression models were developed to determine independent predictors of survival at 1, 3, and 5 years following lung transplantation. (2) April 1994 to June 1997 (n = 1,796): The association of HLA mismatching with acute rejection and obliterative bronchiolitis was determined using a chi-squared analysis. RESULTS: Only 164 patients (4.6%) received lung grafts with 2 or fewer HLA mismatches. Univariate analyses demonstrated a significant difference in post-transplant survival by mismatch level, with the total number of HLA mismatches (p = 0.0008) and mismatching at the HLA-A locus (p = 0.002) associated with worse survival. Multivariate logistic regression demonstrated that the number of mismatches at the HLA-A and HLA-DR loci predicted 1-year mortality (incremental odds ratios 1.18, p = 0.01, and 1.15, p = 0. 03, respectively). The total number of HLA mismatches predicted 3- and 5-year mortality (incremental odds ratios 1.13 at 3 years, p = 0. 0004, and 1.14 at 5 years, p = 0.0002). However, other covariates such as repeat transplantation, transplantation for congenital heart disease, advanced recipient age, and an early era of transplantation were stronger predictors of mortality. We found no significant association between HLA mismatching and the development of obliterative bronchiolitis, although there was an association between mismatching at the HLA-A locus and acute rejection episodes requiring hospital admission (p = 0.008). We also found no association between mismatching at the HLA-B locus and rejection episodes requiring either hospitalization or the alteration of anti-rejection medications (p = 0.034). CONCLUSION: Although the number of HLA mismatches at the HLA-A and HLA-DR loci predicted 1-year mortality and the total number of mismatches predicted 3- and 5-year mortality following lung transplantation, the effect of each covariate was small in this multicenter study of 3,549 patients. Further close follow-up of registry patients is necessary to determine the effect of HLA matching on long-term survival and freedom from obliterative bronchiolitis and rejection following lung transplantation. A prospective study of HLA matching for lung transplantation should not yet be considered in view of the small number of grafts with 2 or fewer mismatches and the modest effect of HLA matching on outcome. FAU - Quantz, M A AU - Quantz MA AD - London Health Sciences Centre and the University of Western Ontario, London, Canada. maquantz@julian.uwo.ca FAU - Bennett, L E AU - Bennett LE FAU - Meyer, D M AU - Meyer DM FAU - Novick, R J AU - Novick RJ LA - eng PT - Comparative Study PT - Journal Article PL - United States TA - J Heart Lung Transplant JT - The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation JID - 9102703 RN - 0 (HLA-A Antigens) RN - 0 (HLA-B Antigens) RN - 0 (HLA-DR Antigens) SB - IM MH - Adult MH - Graft Survival/immunology MH - HLA-A Antigens/*analysis MH - HLA-B Antigens/*analysis MH - HLA-DR Antigens/*analysis MH - *Histocompatibility Testing MH - Humans MH - Lung Transplantation/*immunology/mortality MH - Odds Ratio MH - *Outcome Assessment, Health Care MH - Prognosis MH - Prospective Studies MH - Survival Rate MH - Tissue Donors EDAT- 2000/05/16 09:00 MHDA- 2000/07/06 11:00 CRDT- 2000/05/16 09:00 PHST- 2000/05/16 09:00 [pubmed] PHST- 2000/07/06 11:00 [medline] PHST- 2000/05/16 09:00 [entrez] AID - S1053-2498(00)00081-4 [pii] AID - 10.1016/s1053-2498(00)00081-4 [doi] PST - ppublish SO - J Heart Lung Transplant. 2000 May;19(5):473-9. doi: 10.1016/s1053-2498(00)00081-4.