The relationship between upper airway collapse and the severity of obstructive sleep apnea syndrome: a chart review

Journal of Otolaryngology-Head & Neck Surgery

Camille Vallée-Gravel²  Amanda Fanous⁴  Michael P. Hier¹  Véronique-Isabelle Forest¹  Richard J. Payne³  Russell N. Schwartz⁵ 

[1] Department of Otolaryngology-Head and Neck Surgery, Sir Mortimer B. Davis-Jewish General Hospital, McGill University, 3755 Côte Ste-Catherine Road, Montreal, QC, Canada;Faculty of Medicine, McGill University, 845 Rue Sherbrooke West, Montréal, QC, Canada;Department of Otorhinolaryngology Adult (Otl) (Ent) (Surgery), Royal Victoria Hospital, McGill University Health Center, 687 Pine Avenue West, Montreal, QC, Canada;Department of Otolaryngology-Head and Neck Surgery, McGill Executive Institute, McGill University, 1001 Rue Sherbrooke West, Montreal, QC, Canada;Faculty of Science, McGill University, 845 Rue Sherbrooke West, Montréal, QC, Canada

关键词: Apnea-hypopnea index;    Sleep study;    Upper airway;    Mueller maneuver;    Obstructive sleep apnea syndrome;   

Others  :  1223811
DOI  :  10.1186/s40463-015-0086-2

 received in 2015-05-15, accepted in 2015-08-24,  发布年份 2015

【 摘 要 】

Background

We sought to determine the ability of the endoscopic Mueller maneuver (MM) to predict the severity of OSAS based on upper airway (UA) collapse.

Methods

This chart review retrospectively analyzed the results of endoscopic Mueller maneuvers examining the UA on 506 patients suspected of having OSAS. There were 3 areas of UA collapse that were evaluated: velopharynx (VP), base of tongue (BOT), and lateral pharyngeal walls (LPW). A sleep study was done after the examination to assess the severity of OSAS based on the apnea-hypopnea index (AHI).

Results

A total of 506 patients met criteria for OSAS, with 194 mild cases (5 ≤ AHI < 15), 163 moderate cases (15 ≤ AHI < 30) and 149 severe cases (30 ≤ AHI). At the VP, 30 patients had minimal collapse (mean AHI = 17); 41 patients had moderate VP collapse (mean AHI = 25); 392 patients had severe VP collapse (mean AHI = 27). At the BOT, 144 patients had minimal collapse (mean AHI = 19); 187 patients had moderate BOT collapse (mean AHI = 24); 175 patients had severe BOT collapse (mean AHI = 33). At the LPW, 158 patients had minimal collapse (mean AHI = 20); 109 patients had moderate LPW collapse (mean AHI = 25); 120 patients had severe LPW collapse (mean AHI =33). The correlations found between VP collapse, BOT collapse, and LPW collapse and OSAS severity were: r = 0.069 (95 % CI; −0.022, 0.16), r = 0.26 (95 % CI; 0.18, 0.34) and r = 0.22 (95 % CI; 0.12, 0.31), respectively.

Conclusions

In this study, the degree of collapse of the UA at all levels, especially at the BOT and LPW levels, correlate significantly with the severity of OSAS. The Mueller maneuver helped identify patients with severe sleep apnea based on UA collapse. The MM cannot be used to diagnose OSAS, but can be a valuable tool to help the physician estimate the severity of sleep apnea and the urgency to obtain a sleep study.

【 授权许可】

   
2015 Schwartz et al.

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