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Ann Thorac Surg 1997;64:321-326
© 1997 The Society of Thoracic Surgeons

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Original Articles: General Thoracic

Functional Comparison of Unilateral Versus Bilateral Lung Volume Reduction Surgery

Divisions of Cardiothoracic Surgery and Pulmonary Medicine, Columbia-Presbyterian Medical Center, New York, New York

Background. Lung volume reduction surgery (LVRS) has shown early promise as a palliative therapy in severe emphysema. A number of patients, however, are not candidates for a bilateral operation, or exhibit a predominantly unilateral disease distribution.

Methods. Over 20 months, we performed LVRS in 92 patients selected on the basis of severe hyperinflation with air trapping, diaphragmatic dysfunction, and disease heterogeneity. Twenty-eight patients underwent unilateral LVRS on the basis of asymmetric disease distribution, prior thoracic operation, or concomitant tumor resection.

Results. Unilateral LVRS resulted in comparable improvements in exercise capacity and dyspnea as the bilateral procedure, with a similar perioperative mortality and actuarial survival to 24 months. Improvements in spirometric indices of pulmonary function, however, were less in patients undergoing unilateral than bilateral LVRS.

Conclusions. In properly selected patients, unilateral LVRS provides functional and subjective benefits of comparable magnitude to those associated with a bilateral operation. Unilateral LVRS is therefore an option in the therapy of end-stage emphysema in patients with asymmetric disease distribution, a prior thoracic operation, or contraindications to sternotomy, and may have a role as a bridge to transplantation in selected cases.

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Discussion
Ann. Thorac. Surg. 1997 64: 326-327. [Extract] [Full Text]

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