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Published in: European Archives of Oto-Rhino-Laryngology 2/2024

17-11-2023 | Sleep Apnea | Miscellaneous

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

Authors: Wanting Gao, Lei Shi, Dengxiang Xing, Jie Qin, Chenhai Zheng, Shuhua Li, Dahai Wu

Published in: European Archives of Oto-Rhino-Laryngology | Issue 2/2024

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Abstract

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. After that, the different causes of retrolingual obstruction were diagnosed based on different diagnostic criteria, and the proportions of different causes in all moderate–severe OSA patients with retrolingual obstruction were calculated. Finally, the correlations between FTP, RCSA, and apnea–hypopnea index after nasopharyngeal tube insertion (NPT-AHI) were analyzed, and the proportions of different causes of retrolingual obstruction based on different FTP and RCSA were observed.

Results

There were 128 patients with retrolingual obstruction, accounting for 58.2% of all moderate–severe OSA patients. In 128 patients with retrolingual obstruction, the proportions of glossoptosis (48.4%), palatal tonsil hypertrophy (28.1%), and lingual hypertrophy (8.6%) were relatively high. Both FTP and RCSA did not correlate with NPT-AHI. The proportion of lingual hypertrophy increased gradually with the increase of FTP and the proportions of glossoptosis in all FTP classifications were high. The patients with RCSA > 180 mm2 were mainly affected by glossoptosis and palatal tonsil hypertrophy, while patients with RCSA ≤ 180 mm2 were mainly affected by lingual hypertrophy.

Conclusion

The percentage of patients with retrolingual obstruction in all moderate–severe OSA patients is relatively high, mainly glossoptosis, palatal tonsil hypertrophy, and lingual hypertrophy. FTP classification and RCSA can only reflect the retrolingual anatomical stenosis, but cannot fully reflect the retrolingual functional stenosis, especially the presence of glossoptosis.
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Metadata
Title
Analysis of the cause of retrolingual obstruction in patients with moderate–severe obstructive sleep apnea
Authors
Wanting Gao
Lei Shi
Dengxiang Xing
Jie Qin
Chenhai Zheng
Shuhua Li
Dahai Wu
Publication date
17-11-2023
Publisher
Springer Berlin Heidelberg
Keyword
Sleep Apnea
Published in
European Archives of Oto-Rhino-Laryngology / Issue 2/2024
Print ISSN: 0937-4477
Electronic ISSN: 1434-4726
DOI
https://doi.org/10.1007/s00405-023-08333-x

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