1. Clinical implications of donor age: A single-institution analysis spanning 3 decades.
- Author
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Holley CT, Kelly RF, Shumway SJ, Brown RZ, Hertz MI, Rudser KD, Quinlan CW, Cich I, and Loor G
- Subjects
- Adult, Age Factors, Aged, Bronchiolitis Obliterans etiology, Clinical Decision-Making, Female, Humans, Lung Transplantation adverse effects, Lung Transplantation mortality, Male, Middle Aged, Minnesota, Progression-Free Survival, Retrospective Studies, Risk Assessment, Risk Factors, Time Factors, Donor Selection, Lung Transplantation methods, Tissue Donors supply & distribution
- Abstract
Background: We sought to clarify the effect of donor age as a continuous variable on morbidity and mortality in a single-institution experience., Methods: From 1986 to 2016, 882 adult lung transplants were performed, including 396 in the lung allocation score era. Kaplan-Meier curves and Cox proportional hazards models were used to evaluate the association of donor age with overall survival and bronchiolitis obliterans syndrome (BOS) score ≥1-free survival. Logistic regression was used to evaluate the association with primary graft dysfunction grade 3. Natural cubic splines were used to explore donor age in a continuous fashion to allow for nonlinear relationships., Results: In the lung allocation score era, unadjusted 5-year survival was not significantly different between 3 a priori-defined donor age groups: age <40, 40 to 54, and age ≥55 years (64%, 61%, and 69%, P = .8). Unadjusted 5-year freedom from BOS ≥1 was not significantly different (34%, 20%, and 33%, respectively, P = .1). After we adjusted for comorbidities, cubic spline analysis demonstrated no effect between donor age as a continuous variable and hazard for mortality at 5 years. Similarly, no interaction was seen between donor age and risk of BOS or primary graft dysfunction 3. Adjusted analysis of all 882 transplants pre- and postinception of the lung allocation score also showed no effect of age on 10-year survival., Conclusions: Long-term survival of lung transplant recipients was not affected by the age of the donor. These findings support the notion that donor age could be relaxed., (Copyright © 2017 The American Association for Thoracic Surgery. Published by Elsevier Inc. All rights reserved.)
- Published
- 2017
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