Comparison of level and degree of upper airway obstruction by Müller's maneuver and drug-induced sleep endoscopy in obstructive sleep apnea patients

Both examination methods revealed the same obstruction levels in all cases except epiglottic level, but there were some differences in obstructive degree. MM is capable of detecting obstruction levels in the upper airway and can be used to determine surgical sites in cases when DISE cannot be used due to a patient's condition or a clinic's circumstances.