Analysis of the cause of retrolingual obstruction in patients with moderate-severe obstructive sleep apnea.

Purpose: To evaluate the percentage of obstructive sleep apnea (OSA) patients with retrolingual obstruction in all moderate-severe OSA patients and the proportions of different causes in all moderate-severe OSA patients with retrolingual obstruction and to discuss the accuracy of the Friedman tongue position (FTP) and retrolingual cross-sectional area (RCSA) in assessing the retrolingual obstruction.

Methods: Two hundred and twenty moderate-severe OSA patients were enrolled. After retrolingual obstruction was diagnosed, the percentage of OSA patients with retrolingual obstruction in all moderate-severe OSA patients was calculated.

The effect of laryngopharyngeal reflux on arousal in patients with obstructive sleep apnea.

Background: Laryngopharyngeal reflux (LPR) may be associated with the severity of obstructive sleep apnea (OSA). However, it is unknown whether LPR may be associated with arousal.

Objective: To clarify the effect of LPR on arousal in OSA.

Measurement of Lingual Artery Using Ultrasound Versus Computed Tomography Angiography for Midline Glossectomy in Patients With Obstructive Sleep Apnea.

Objective: To clarify the differences in assessing the course of the lingual artery between lingual artery computed tomography angiography (CTA) and ultrasound (US).

Methods: Twenty-six OSA patients were included in this study and accomplished lingual artery CTA and US, respectively. The differences in the depths of the lingual arteries and the distances between the bilateral lingual arteries on 3 measurement levels based on lingual artery CTA and US were compared.