David J Hall1, Eric I Jeng1, Jon A Gregg2, Andres Pelaez3, Amir M Emtiazjoo3, Satish Chandrashekaran3, Mauricio Pipkin1, Thomas M Beaver1, Tiago N Machuca4. 1. Division of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Florida College of Medicine, Gainesville, Florida. 2. Division of Transplant Nephrology, University of Florida College of Medicine, Gainesville, Florida. 3. Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Florida College of Medicine, Gainesville, Florida. 4. Division of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Florida College of Medicine, Gainesville, Florida. Electronic address: tiago.noguchimachuca@surgery.ufl.edu.
Abstract
BACKGROUND: Lung transplantation for patients with end-stage lung disease continues to grow worldwide. Increasing demand for this therapy generates significant waitlist mortality, indicating that alternative sources of donor lungs, such as older donors, are needed. The effect of the donor-recipient age relationship on outcomes remains unclear. METHODS: A retrospective review of the United Network for Organ Sharing Standard Transplant Analysis and Research database was performed for adult lung recipients from 2005 to 2015. Variables examined included donor age, recipient age, listing diagnosis, episodes of acute cellular rejection in the first year, and survival. Both donors and recipients were stratified according to age ranges. Survival was compared with the log-rank test. Propensity score matching was done stratifying donors younger than 60 years versus older than 60 years for the recipient population of 60 to 69 years. RESULTS: From May 2005 to February 2015, 15,844 patients underwent lung transplantation. Unadjusted comparisons of donor-to-recipient age showed that older donor age appeared to be more relevant for recipients 60 to 69 years old (p = 0.002). Nevertheless, when propensity matching was done based on relevant covariates for recipients in this age range by donors younger or older than 60 years, there were no differences in survival. CONCLUSIONS: Our results suggest that even though donor and recipient age may be important in lung transplantation, the interplay between donor and recipient age alone is not an independent determinant of survival. Careful selection of lungs from donors older than 60 years old should be exercised, taking into consideration the totality of donor demographics and risk factors rather than dismissing lungs based on advanced age alone.
BACKGROUND: Lung transplantation for patients with end-stage lung disease continues to grow worldwide. Increasing demand for this therapy generates significant waitlist mortality, indicating that alternative sources of donor lungs, such as older donors, are needed. The effect of the donor-recipient age relationship on outcomes remains unclear. METHODS: A retrospective review of the United Network for Organ Sharing Standard Transplant Analysis and Research database was performed for adult lung recipients from 2005 to 2015. Variables examined included donor age, recipient age, listing diagnosis, episodes of acute cellular rejection in the first year, and survival. Both donors and recipients were stratified according to age ranges. Survival was compared with the log-rank test. Propensity score matching was done stratifying donors younger than 60 years versus older than 60 years for the recipient population of 60 to 69 years. RESULTS: From May 2005 to February 2015, 15,844 patients underwent lung transplantation. Unadjusted comparisons of donor-to-recipient age showed that older donor age appeared to be more relevant for recipients 60 to 69 years old (p = 0.002). Nevertheless, when propensity matching was done based on relevant covariates for recipients in this age range by donors younger or older than 60 years, there were no differences in survival. CONCLUSIONS: Our results suggest that even though donor and recipient age may be important in lung transplantation, the interplay between donor and recipient age alone is not an independent determinant of survival. Careful selection of lungs from donors older than 60 years old should be exercised, taking into consideration the totality of donor demographics and risk factors rather than dismissing lungs based on advanced age alone.
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