Intermittent positive pressure inflation during microscopic endolaryngeal surgery.

We describe a technique of anaesthesia for microlaryngeal surgery which we have found satisfactory. Inflation of oxygen through a noso-tracheal catheter provided very satisfactory ventilation with high oxygen levels in contrast to other reports. The intratracheal pressure was intermittently monitored to ensure safety. Continuous infusion of Methohexitone and suxamethonium provided adequate safe anaesthesia, prompt recovery, and absence of awareness. The results of pulmonary function tests undertaken preoperatively and postoperatively were mainly identical, showing no gross deleterious effect with this method of anaesthesia.