Abstract

BackgroundPre-operative imaging tools play a crucial role in the anatomic assessment of the upper airway and adjacent structures in obstructive sleep apnea patients. The current study was aimed at comparing and correlating the results of videofluoroscopy in evaluating upper airway obstruction in surgically fit obstructive sleep apnea “OSA” patients with fiberoptic nasoendoscopic examination during the awake “Muller’s maneuver” and during sleep induced with propofol for better selection of the suitable surgical maneuver. The present study was an observational cross-sectional study of 69 surgically fit OSA patients (36 males and 33 females); their ages ranged between 29 and 65 years with mean age of 45.87 ± 9.68 years. The patients were selected from otorhinolaryngology, phoniatric, and pulmonology outpatient clinics during the period from February 2019 to January 2020.ResultsThe present study demonstrated that no statistically significant difference was found between the three techniques (video-fluoroscopy, awake fiber-optic nasoendoscopy, and drug-induced sleep nasoendoscopy “DISE”) as regards the shape of upper airway collapse at retropalatal, retroglossal, and hypopharyngeal levels in OSA patient (P: 0.621, 0.669, and 1.0 respectively). Statistically, a significant difference was observed between video-fluoroscopy, awake fiber-optic nasoendoscopy on one hand, and DISE on the other one regarding the grade of upper airway collapse at all levels (P: 0.006, 0.037, and 0.003). It was a mild significant difference in favor of DISE.ConclusionVideo-fluoroscopy is a good, reliable complementary preoperative assessment tool to identify obstruction patterns of the upper airway in OSA patients with quantitative measurements.

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