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Is bronchoscopic lung biopsy helpful in the management of patients with diffuse lung disease?

Mayo Clinic College of Medicine, Mayo Medical Center, Rochester, MN, USA.

CORRESPONDENCE: U. B. S. Prakash, Pulmonary and Critical Care Division, East-18, Mayo Building, Mayo Medical Center, Rochester, MN 55905, USA. Fax: 1 5072664372. E-mail: prakash.udaya{at}mayo.edu

Keywords: Bronchoscopic lung biopsy, bronchoscopy, diffuse lung disease, interstitial lung disease, transbronchial biopsy, transbronchoscopic biopsy

Received: January 27, 2006
Accepted July 26, 2006

Few studies have evaluated how the results of bronchoscopic lung biopsy (BLB) affect clinical management. The objective of the present study was to evaluate the clinical usefulness of BLB in the overall management of patients with diffuse pulmonary diseases.

The study was a retrospective analysis of patients who underwent fluoroscopy-guided BLB over a 2-yr period. Patients whose biopsy was of a lung mass or single dominant lung nodule were excluded. The usefulness of BLB was assessed to determine whether the results affected the clinical management of these patients.

During the study period, 603 patients underwent 651 BLB procedures. The results of BLB were clinically helpful in 494 (75.9%) out of 651 procedures. No diagnostic abnormality was identified in 107 (16.4%) out of the 651 biopsy procedures. This finding was clinically helpful in 59 (55.1%) out of 107 procedures, as the results excluded specific processes suspected before BLB. In 52 procedures (8% of all BLB), no lung parenchyma was obtained.

In conclusion, bronchoscopic lung biopsy is a clinically useful test in 75% of procedures. In the 25% of bronchoscopic lung biopsies that were clinically unhelpful, the reason for failure in approximately one-third of patients was the failure of the procedure to obtain an adequate quantity of lung parenchyma for a meaningful histological analysis.

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