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Impact of bedside open lung biopsies on the management of mechanically ventilated immunocompromised patients with acute respiratory distress syndrome of unknown etiology.

By E. Charbonney, J. Robert, J.C. Pache, J.C. Chevrolet and P. Eggimann


BACKGROUND: Open lung biopsy (OLB) is helpful in the management of patients with acute respiratory distress syndrome (ARDS) of unknown etiology. We determine the impact of surgical lung biopsies performed at the bedside on the management of patients with ARDS. METHODS: We reviewed all consecutive cases of patients with ARDS who underwent a surgical OLB at the bedside in a medical intensive care unit between 1993 and 2005. RESULTS: Biopsies were performed in 19 patients mechanically ventilated for ARDS of unknown etiology despite extensive diagnostic process and empirical therapeutic trials. Among them, 17 (89%) were immunocompromised and 10 patients experienced hematological malignancies. Surgical biopsies were obtained after a median (25%-75%) mechanical ventilation of 5 (2-11) days; mean (+/-SD) Pao(2)/Fio(2) ratio was 119.3 (+/-34.2) mm Hg. Histologic diagnoses were obtained in all cases and were specific in 13 patients (68%), including 9 (47%) not previously suspected. Immediate complications (26%) were local (pneumothorax, minimal bleeding) without general or respiratory consequences. The biopsy resulted in major changes in management in 17 patients (89%). It contributed to a decision to limit care in 12 of 17 patients who died. CONCLUSION: Our data confirm that surgical OLB may have an important impact on the management of patients with ARDS of unknown etiology after extensive diagnostic process. The procedure can be performed at the bedside, is safe, and has a high diagnostic yield leading to major changes in management, including withdrawal of vital support, in the majority of patients

Topics: adult ; aged ; biopsy/adverse effects ; biopsy/instrumentation ; causality ; chest tubes ; female ; hemorrhage/etiology ; hospitals , teaching ; humans ; immunocompromised host ; immunosuppressive agents/adverse effects ; intensive care/methods ; intensive care units ; male ; middle aged ; patients' rooms ; pneumothorax/etiology ; respiration, artificial ; respiratory distress syndrome, adult/diagnosis ; respiratory distress syndrome, adult/etiology ; retrospective studies ; treatment outcome
Publisher: 'Elsevier BV'
Year: 2009
DOI identifier: 10.1016/j.jcrc.2008.01.008
OAI identifier:

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