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J Thorac Cardiovasc Surg 1999;118:1097-1100
© 1999 Mosby, Inc.

GENERAL THORACIC SURGERY

LUNG BIOPSY: IS IT NECESSARY?

From the University of New Mexico Health Sciences Center, Department of Surgery,^a Department of Pathology,^b Department of Mathematics and Statistics,^c and Department of Medicine,^d Albuquerque, NM.

Address for reprints: R. Thomas Temes, MD, University of New Mexico, Department of Surgery, 2211 Lomas Blvd NE, Albuquerque, NM 87131 (E-mail: Ttemes{at}salud.unm.edu ).

Objective: Lung biopsy is associated with substantial mortality rates. We reviewed our experience with this operation, primarily in patients with immunocompetence, to determine whether the results justify the continued performance of this procedure.
Methods: We conducted a retrospective review of all diagnostic lung biopsies performed at 3 university-affiliated hospitals between July 1, 1992, and December 31, 1998.
Results: There were 75 patients: 25 patients were treated electively, 17 were treated on an urgent basis, 27 patients on an emergency basis, and the urgency was unclear in 6 patients. Significant beneficial therapeutic changes were made in 15 of 25 elective procedures (60%), in 16 of 17 urgent procedures (94%), and in 11 of 27 emergency procedures (41%; P = .001). Significant beneficial therapeutic changes consisted of immunosuppression in 13 of 15 (87%) patients treated on an elective basis, in 9 of 16 (56%) treated on an urgent basis, and in 9 of 11 (82%) treated on an emergency basis in whom therapy was altered (P = .14). Operative death was 0 of 25 for elective operations (0%), 3 of 17 for urgent operations (18%), and 14 of 26 for emergency operations (54%). Multivariable analysis of operative death showed urgency to be the only significant predictor of death (P = .002).
Conclusions: In patients with immunocompetence, elective and urgent lung biopsies have acceptable operative mortality rates and frequently result in important beneficial therapeutic changes. Consequently biopsies are appropriate in these patients. Emergency biopsies are associated with high operative mortality rates and rarely result in a therapeutic change other than immunosuppression. These patients should not undergo lung biopsy if they are in stable condition and should be treated empirically with immunosuppression without operation if their condition is deteriorating.

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