Laryngeal mask airway--a novel method of airway protection during ERCP: comparison with endotracheal intubation.

Background: ERCP sometimes requires deep sedation and rarely general anesthesia with airway protection. The laryngeal mask airway device is placed perorally to create a seal over the larynx. Unlike endotracheal intubation, no tube traverses the vocal cords, thus reducing airway stimulation and obviating the need to administer muscle relaxants.