1. Acute intraoperative endotracheal tube obstruction associated with a heat and moisture exchanger in an infant;Casta;Anesth Analg,2007
2. Sudden complete obstruction of breathing circuit during postural change upon completion of thoracic spinal surgery in a pediatric patient;Wang;Acta Anaesthesiol Sin,2003
3. Anaesthetic breathing circuit obstruction due to blockage of tracheal tube connector by a foreign body - two cases;Foreman;Anaesth Intensive Care,1999
4. Sudden development of anesthesia circuit obstruction by an end tidal C02 cap in the gas sampling elbow;Krensavage;Anesth Analg,1995