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Updated: Nov 4, 2025

Drug-Induced Sleep Endoscopy DISE with Target Controlled Infusion TCI and Bispectral Analysis in Obstructive Sleep Apnea
Published on: December 6, 2016
Novel clinical screening method to identify patients at risk of obstructive sleep apnea
Mehmet Murat Günay1, Güleser Saylam2, İbrahim Hikmet Fırat3
1Department of Otorhinolaryngology Head and Neck Surgery, Adiyaman Kahta State Hospital, Adiyaman, Turkey.
Objective:
To investigate whether the distance between the two retromolar trigones (RMTs) with the distance between the two posterior plicas (PPs) affects obstructive sleep apnea syndrome (OSAS) and to determine a physical examination method that can be used in the selection of patients to be referred to polysomnography (PSG).
Methods:
The study included 86 OSAS patients and 29 healthy controls. RMTs and PPs were measured using a caliper-like device. The values obtained from these measurements were evaluated in both groups.
Results:
The PPs were narrower, and the RMTs-PPs, RMTs-PPs/RMTs, and RMTs/PPs values were greater in the OSAS group (p < .05) compared to the control group. The cut-off values were 0.612 for RMTs-PPs/RMTs and 2.589 for RMTs/PPs. The specificity of these values for OSAS was 97%, and sensitivity was 57% and 58%, respectively.
Conclusion:
The presented method may play a role in preventing unnecessary PSG among patients with suspected OSAS.
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