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Updated: Sep 9, 2025

Drug-Induced Sleep Endoscopy DISE with Target Controlled Infusion TCI and Bispectral Analysis in Obstructive Sleep Apnea
Published on: December 6, 2016
Persistent OSA After Maxillomandibular Advancement: Insights From Drug-Induced Sleep Endoscopy
1Department of Head and Neck Surgery, University of California, Los Angeles, Los Angeles, California, USA.
Objective:
To examine drug-induced sleep endoscopy (DISE) findings in individuals with persistent obstructive sleep apnea (OSA) after maxillomandibular advancement (MMA).
Study Design:
Cross-sectional.
Setting:
Academic medical center.
Methods:
DISE using propofol for unconscious sedation was performed in adult study participants with OSA after MMA and possible other procedures, defined by a postoperative apnea-hypopnea index ≥ 5 events/h. The pattern of obstruction during DISE in the supine body position was characterized using the VOTE Classification.
Results:
Twenty-four study participants underwent DISE examinations. Age was 46.4 ± 10.5 years, and 12% (3/24) were female. Body mass index was 26.4 ± 4.7 kg/m2. DISE examinations were performed 889 ± 1009 days after MMA. The post-MMA apnea-hypopnea index was 18.2 ± 11.3 events/h. During DISE, most study participants demonstrated tongue-related obstruction, with a substantial minority showing velum- and epiglottis-related obstruction. Oropharyngeal lateral wall-related obstruction was less common. Compared to a larger cohort (n = 810) with no previous pharyngeal OSA surgery undergoing DISE, velum- and oropharyngeal lateral wall-related obstruction were less common, and epiglottis-related obstruction was more common.
Conclusion:
Among individuals with OSA following MMA, upper airway obstruction occurs due to multiple potential anatomic structures. Tongue-related obstruction is common, and epiglottis-related obstruction is more common than in those without previous pharyngeal OSA surgery.
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