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J Thorac Cardiovasc Surg 2007;133:541-547
© 2007 The American Association for Thoracic Surgery

Cardiothoracic Transplantation

Impact of bilateral versus single lung transplantation on survival in recipients 60 years of age and older: Analysis of United Network for Organ Sharing database

^a Division of Cardiac Surgery, The Johns Hopkins Medical Institutions, Baltimore, Md
^b Department of Surgery, The Johns Hopkins Medical Institutions, Baltimore, Md.

Read at the Eighty-sixth Annual Meeting of The American Association for Thoracic Surgery, Philadelphia, Pa, April 29–May 3, 2006.

Received for publication April 28, 2006; revisions received August 25, 2006; accepted for publication September 29, 2006.

^_* Address for reprints: Ashish S. Shah, MD, Division of Cardiac Surgery, The Johns Hopkins Hospital, 600 North Wolfe St, Blalock 618, Baltimore, MD 21287. (Email: ashah29{at}csurg.jhmi.jhu.ed).

OBJECTIVE: Lung transplantation has been increasingly applied to patients over the age of 60 years. Importantly, the procedure of choice, single versus bilateral lung transplantation, remains unclear. Therefore, the purpose of this study was to examine short- and midterm outcomes in this age group with particular attention to procedure type.

METHODS: All first lung transplant recipients, 60 years of age or older, reported to the United Network for Organ Sharing from 1998 to 2004 were divided into two groups: bilateral and single lung transplantation. A retrospective review of pertinent baseline characteristics, clinical parameters, and outcomes was performed. Kaplan–Meier methodology was used to estimate and Cox proportional hazards regression modeling was used to compare posttransplant survival between these groups. Additionally, propensity scores analysis was performed.

RESULTS: During the study period, 1656 lung transplant recipients were 60 years of age or older (mean 62.7 ± 2.4 years, median 62 years). Of these, 364 (28%) had bilateral and 1292 (78%) had single lung transplantation. Survival was not statistically different between the two groups. In the multivariate analysis, bilateral versus single lung transplantation was not a predictor of mortality. Idiopathic pulmonary fibrosis and a donor tobacco history of more than 20 pack-years were significantly associated with mortality (P = .003, CI 1.12–1.76; and P = .006, CI 1.09–1.63; respectively).

CONCLUSIONS: The survival of lung transplant recipients 60 years of age or older who underwent bilateral versus single lung transplantation is comparable. These data suggest that type of procedure is not a predictor of mortality in this age group. Idiopathic pulmonary fibrosis and donor cigarette use of more than 20 pack-years were independently associated with mortality.

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