Changes of peripheral airways through mechanical ventilation in acute respiratory failure

J. Takeda, M. Tanaka, M. Shimada, R. Ochiai, H. Sekiguchi, K. Fukushima, E. Kohda

Research output: Contribution to journalArticlepeer-review


To evaluate the morphologic changes in the peripheral airways associated with positive pressure ventilation, fine fiberoptic bronchoscopy (1.8 mm outer diameter) was performed in 12 patients who had no history of prior pulmonary failure. In 19 examinations, the main morphologic findings were paleness and bronchial dilatation in the peripheral airways where increased secretions, pigmentation and stenosis or collapse were also observed. Patients with bronchial dilatation had longer periods of mechanical ventilation (17 ± 8 days) compared to those without dilatation (10 ± 5 days). The structural destruction in the peripheral airways observed in patients on prolonged positive pressure mechanical ventilation suggests that barotrauma may be more widespread than previously recognized.

Original languageEnglish
Pages (from-to)1405-1408
Number of pages4
JournalJapanese Journal of Thoracic Diseases
Issue number11
Publication statusPublished - 1993

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine


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