Chronic aspiration is a cause of life-threatening respiratory complications and repeated hospital admissions, particularly in children with neurological disabilities. Determining the source of aspiration is important for optimizing treatment.This report describes a simple technique to demonstrate salivary aspiration during fibreoptic bronchoscopy. A child with a history of recurrent pneumonia was given methylene blue orally 2 h prior to fibreoptic bronchoscopy. Bronchoscopy was carried out through a laryngeal mask airway under inhalational anaesthesia. The stained saliva was seen to be pooling in the valleculae and then running down the trachea into the bronchi, confirming salivary aspiration. Eur Respir J 2000; 15: 424±425.
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