abstract
- Persistent minor hemoptysis resulted from extensive granulation tissue on the main carina and adjacent bronchi due to frequent spraying of metered-dose inhaler (MDI)-generated aerosol medications directly into a permanent tracheostomy. Salbutamol, containing oleic acid, was considered the most likely cause. After an AeroChamber equipped with an infant mask was interposed between the MDI and the tracheal stoma, hemoptysis and the pathologic changes gradually resolved.