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Sleep and Breathing

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04-10-2023 | Uvulopalatopharyngoplasty | ENT • Original Article

The morphometrical evaluation after uvulopalatopharyngoplasty

Authors: Tsutomu Nomura, Tomomi Horikoshi, Yuka Kitano, Masato Yamada, Kenji Kondo, Shigeru Kikuchi

Published in: Sleep and Breathing | Issue 2/2024

Abstract

Objectives

The aim of this study was to evaluate the efficacy of uvulopalatopharyngoplasty (UPPP) and the corresponding postoperative morphometrical changes.

Methods

Patients diagnosed with obstructive sleep apnea syndrome who complained of snoring and apnea were enrolled in this study. Pre- and postoperative tests, including CTs, pharyngeal volume (PV), cross-sectional area (CSA), and six-category morphometrical studies, were performed.

Results

Of 11 patients included, 10 showed improvement of symptoms. BMI correlated with the respiratory event index (REI). In terms of PV, there was a significantly wider postoperative area. The rate of change between preoperative REI and postoperative REI (ΔREI) correlated with the amount of change of PV between preoperative PV and postoperative PV (ΔPV). CSA increased postoperatively and correlated with REI.

Uvula space (UV) and distance between the hyoid bone and the base of the tongue (HB) increased postoperatively, and posterior airway space (PAS) and epiglottic space (Epi) decreased postoperatively. UV and PAS were significant (p = 0.046, 0.014). UV was related to REI.

Conclusion

Widening the PV, increasing CSA, and the posterior movement of the tongue base after UPPP surgery were found. The improvement of REI did not depend only on volume. These results suggest that it was important not only to widen the PV but also to improve the shape of the pharynx.

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Title: The morphometrical evaluation after uvulopalatopharyngoplasty
Authors: Tsutomu Nomura
Tomomi Horikoshi
Yuka Kitano
Masato Yamada
Kenji Kondo
Shigeru Kikuchi
Publication date: 04-10-2023
Publisher: Springer International Publishing
Keywords: Uvulopalatopharyngoplasty
Sleep Apnea
Published in: Sleep and Breathing / Issue 2/2024
Print ISSN: 1520-9512
Electronic ISSN: 1522-1709
DOI: https://doi.org/10.1007/s11325-023-02926-w

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Abstract

Objectives

Methods

Results

Conclusion

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