Journal article
Effect of older donor age on risk for mortality after heart transplantation
The Annals of thoracic surgery, Vol.78(3), pp.890-899
2004
DOI: 10.1016/j.athoracsur.2004.02.016
PMID: 15337016
Abstract
Despite the increasingly common use of donor hearts at least 50 years of age, controversy still remains regarding long-term outcome. Our goal was to determine if older donor age is associated with an increased risk of mortality and specifically if the use of donor hearts at least 50 years of age reduces survival.
We retrospectively studied records of all primary heart transplants performed between January 1990 and July 2002. Fifty-six patients who had received donor hearts at least 50 years of age were compared with 611 recipients of donor hearts less than 50 years of age. Clinicopathologic parameters were analyzed for their effect on mortality using the Cox proportional hazard model with calculation of hazard ratios (HR). Cut-point analysis of donor age was used to determine which donor age is associated with the greatest risk of mortality after transplant.
Recipients of donor hearts at least 50 years of age were older (58.5 years ± 7.0 vs 53.2 ± 11.6; mean ± standard deviation [SD];
p < 0.0001), suffered more often from ischemic cardiomyopathy (69% vs 50%,
p = 0.01), and experienced a longer waiting time (192.2 days ± 301.0 vs 138.6 ± 190.8,
p < 0.0001). Donor hearts at least 50 years of age (age 54.1 ± 3.5 years) were more often female (50% vs 34%,
p = 0.03), died less often of “head trauma” (9% vs 42%,
p < 0.0001), and exhibited fewer cytomegalovirus (CMV) mismatches (29% vs 39%,
p = 0.04) than donor hearts less than 50 years of age (age 26.8 ± 12.3 years). Multivariate predictors of mortality were rejection index (HR 1.90 per unit [rejections/100 survival days],
p < 0.0001), donor age (HR 1.16 per 10-year increment,
p = 0.002), and recipient age (HR 1.24 per 10-year increment,
p = 0.04). Recipients of donor hearts at least 50 years of age had reduced 1-year and 5-year survival ([65.7% vs 81.7%,
p < 0.05] and [48.3% vs 68.4%,
p < 0.05], respectively), as well as a higher proportion of deaths occurring within 1 month of transplant (41% of total deaths vs 23%,
p = 0.06). Cut-point analysis indicated the characteristic of donor age of at least 40 years (categorical variable) to predict mortality with the same degree of fit as age used as a continuous variable.
Although we observed a substantial reduction in survival among patients who were allocated donor hearts at least 50 years of age, this difference was not solely attributable to the categorical variable of donor age 50 in this group. Donor age as a continuous variable, however, was determined to be a notable predictor of survival and use of the donor age cut-point of 40 years (categorical variable) allowed risk stratification with similar accuracy. The use of a donor age cut-point of 40 years may be a useful clinical criterion for graft-related risk assessment.
Details
- Title: Subtitle
- Effect of older donor age on risk for mortality after heart transplantation
- Creators
- Dipin Gupta - Division of Cardiac and Thoracic Surgery, Philadelphia, PennsylvaniaUSAValentino PiacentinoMahender Macha - Division of Cardiac and Thoracic Surgery, Philadelphia, PennsylvaniaUSAArun K Singhal - Division of Cardiac and Thoracic Surgery, Philadelphia, PennsylvaniaUSAJohn P Gaughan - Department of Biostatistics, Philadelphia, PennsylvaniaUSAJames B McClurken - Division of Cardiac and Thoracic Surgery, Philadelphia, PennsylvaniaUSABruce I Goldman - Department of Pathology, Philadelphia, PennsylvaniaUSACarol A Fisher - Division of Cardiac and Thoracic Surgery, Philadelphia, PennsylvaniaUSADan Beltramo - Division of Cardiology, Temple University School of Medicine, Philadelphia, Pennsylvania, USAJohn Monacchio - Division of Cardiology, Temple University School of Medicine, Philadelphia, Pennsylvania, USAHoward J Eisen - Division of Cardiology, Temple University School of Medicine, Philadelphia, Pennsylvania, USASatoshi Furukawa - Division of Cardiac and Thoracic Surgery, Philadelphia, PennsylvaniaUSA
- Resource Type
- Journal article
- Publication Details
- The Annals of thoracic surgery, Vol.78(3), pp.890-899
- Publisher
- Elsevier Inc
- DOI
- 10.1016/j.athoracsur.2004.02.016
- PMID
- 15337016
- ISSN
- 0003-4975
- eISSN
- 1552-6259
- Language
- English
- Date published
- 2004
- Academic Unit
- Surgery; Cardiothoracic Surgery
- Record Identifier
- 9984051797102771
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