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Ann Thorac Surg 1996;62:363-368
© 1996 The Society of Thoracic Surgeons

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Original Articles: General Thoracic

Unilateral Volume Reduction After Single-Lung Transplantation for Emphysema

Division of Cardiovascular and Thoracic Surgery, University of Minnesota, Minneapolis, Minnesota

Accepted for publication April 1, 1996.

Background. Single-lung transplantation has become accepted therapy for patients with end-stage emphysema. Hyperinflation of the native lung can occur after single-lung transplantation with mediastinal shifting and compression of the transplanted lung. A volume reduction operation (pneumonectomy) may relieve symptoms of dyspnea and improve exercise tolerance.

Methods. Three of 66 patients who underwent single-lung transplantation for emphysema had development of native lung hyperexpansion and mediastinal shifting causing compression of the transplanted contralateral lung at 12, 17, and 42 months after transplantation. There were 2 men and 1 woman. Unilateral volume reduction was performed without complication in all 3 patients.

Results. All patients were noted to have marked improvement in chest radiographs after volume reduction, substantial relief of dyspnea, and improvement in exercise tolerance. An improvement in pulmonary function test results was noted in 1 patient, but tests were not done for the other 2 patients.

Conclusions. Patients with chronic obstructive pulmonary disease who undergo single-lung transplantation may have symptomatic hyperexpansion of the native lung requiring volume reduction months to years after transplantation. Unilateral volume reduction can be safely performed in the posttransplantation period.

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