Comparison of level and degree of upper airway obstruction by Müller's maneuver and drug-induced sleep endoscopy in obstructive sleep apnea patients
2017
Abstract Objective This study aimed to compare and analyze the
leveland degree of observed upper airway obstruction in patients with obstructive sleep apnea (OSA) using
Muller's maneuver(MM) and drug-induced sleep endoscopy (DISE). We sought to find a method for evaluating the upper airway that could be used to determine surgical sites. Methods This study included 80 OSA patients who visited Kyung Hee Medical Center and underwent
polysomnography(PSG) from March 2013 to March 2014. Obstructive
levelsobserved by MM were classified into retropalatal
level, or the lateral wall and retroglossal
level. These
levelswere compared with those determined by DISE through the VOTE classification. Results Based on the results of MM and DISE, lateral wall and retropalatal
levelobstructions showed relatively high conformity, while retroglossal
levelobstruction exhibited considerable differences. When evaluated at each
level, patients with obstruction on MM also showed partial or complete obstruction on DISE at same
level, and patients with no obstruction on DISE also showed no obstruction on MM at same
level. Conclusion Both examination methods revealed the same obstruction
levelsin all cases except
epiglottic
level, but there were some differences in obstructive degree. MM is capable of detecting obstruction
levelsin 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.
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