The Relationship Between Modified Mallampati Score, Müller’s Maneuver and Drug-Induced Sleep Endoscopy Regarding Retrolingual Obstruction

Objectives:This study explored the correlation between clinical explorations, including modified Mallampati score and Muller’s maneuver, with drug-induced sleep endoscopy (DISE) findings regarding retrolingual obstruction.Methods:One hundred forty-two obstructive sleep apnea patients were enrolled in this prospective study. All of the patients received clinical explorations including modified Mallampati scoring and Muller’s maneuver in the clinic. Drug-induced sleep endoscopy was further evaluated in the operating room.Results:A significant relationship was noted between modified Mallampati score and retrolingual obstruction during DISE. In contrast, no significant relationship was noted between Muller’s maneuver and DISE findings regarding retrolingual obstruction.Conclusions:A significant discrepancy existed between retrolingual airway collapse evaluated by modified Mallampati score and Muller’s maneuver. Modified Mallampati score is more correlated with DISE regarding retrolingual obstruction compared ...