Subcutaneous emphysema may be found in the following conditions:: (A) Tracheostomy, (B) Hemilich maneuver, (C) Chest injury, (D) All of the above
Answer is D. * Posterior tracheal wall laceration is responsible for emphysema after Percutaneous Tracheostomy. After perforation of the posterior trachea wall, the pleural space can be reached easily. This may result in a pneumothorax. * Trauma to chest including after a vigorous Hemilich maneuver can lead to subcutaneous emphysema.