Unilateral subcutaneous emphysema after percutaneous tracheostomy

Abstract

Purpose: Percutaneous tracheostomy techniques are widely used in intensive care units. Subcutaneous emphysema is a rare but well recognized complication associated with this procedure. We report an unusual presentation of sc emphysema after percutaneous tracheostomy. The clinical features, diagnosis and postulated mechanism are discussed. Clinical features: A 39-yr-old man had percutaneous tracheostomy done after prolonged intubation in the intensive care unit. Subcutaneous emphysema developed over the right neck three days after the procedure. Associated skin erythema and fever mimicking deep sc infection resulted in neck exploration. No obvious lesion was found in the tracheobronchial tree. Conclusion: Subcutaneous emphysema occurring after percutaneous tracheostomy could occur without significant injury to the tracheobronchial tree. We postulate that air leaking from the tracheostomy site might have been prevented by the snug fit between the tracheostomy tube and the skin, resulting in accumulation in the neck. Asymmetric dilatation of the trachea may explain the unilateral localization of the sc emphysema.