Patients

Background: The laryngeal mask airway ProSeal ™ (PLMA™), a new laryngeal mask device, was compared with the laryngeal mask airway Classic ™ (LMA™) with respect to: (1) insertion success rates and times; (2) efficacy of seal; (3) fiberoptically determined anatomic position; (4) orogastric tube insertion success rates and times; (5) total intraoperative complications; and (6) postoperative sore throat in nonparalyzed adult pa-tients undergoing general anesthesia, hypothesizing that these would be different. Methods: Three hundred eighty-four nonparalyzed anesthe-tized adult patients (American Society of Anesthesiologists physical status I–II) were randomly allocated to the PLMA ™ or LMA ™ for airway management. In addition, 50 % of patients were randomized for orogastric tube placement. Unblinded ob-servers collected intraoperative data, and blinded observer