CC BY-NC-ND 4.0 · Sleep Sci 2023; 16(03): e323-e328
DOI: 10.1055/s-0043-1772827
Short Communication

The Cervical Fat Tissue Volume is a Predictor for Moderate to Severe OSA

1   Hospital Británico, Neumonología, CABA, Buenos Aires, Argentina
,
Pablo Dalzotto
2   Hospital Británico, Diagnóstico por Imágenes, CABA, Buenos Aires, Argentina
,
Melina Saban
1   Hospital Británico, Neumonología, CABA, Buenos Aires, Argentina
,
Fernando M. Ferraro
2   Hospital Británico, Diagnóstico por Imágenes, CABA, Buenos Aires, Argentina
,
Alejandro Salvado
1   Hospital Británico, Neumonología, CABA, Buenos Aires, Argentina
,
Eduardo Enrique Borsini
1   Hospital Británico, Neumonología, CABA, Buenos Aires, Argentina
› Author Affiliations
Funding No funding was received for this research.

Abstract

Objective Obstructive sleep apnea (OSA) is a disorder characterized by recurrent pharyngeal obstruction during sleep, in which upper airway anatomy plays a key role in its pathogenesis. The aim of this study was to describe whether the quantification of cervical fat tissue volume (CFTV) obtained by Computed Tomography (CT)cephalometry is related to the severity of OSA.

Methods Retrospective study between 2018 and 2020 in those patients > 18 years old, with diagnosis of OSA who performed a volumetric cephalometric imaging. Three-dimensional reconstruction of the images was performed and CFTV was measured.

Results 91 patients were included in this study of which: without OSA (n: 7), mild (n: 19), moderate (n: 39) and severe OSA (n: 26). We observed a progressive increase of CFTV related to OSA severity has been observed (without OSA: 58.9 ml (47.9-87.5), mild: 59.1ml (48.4-78.3), moderate: 71 ml (42.6-127.1) and severe OSA 103.6 ml (81-153); p < 0.01); nevertheless, no differences were found in the airway volume and neck area. It was showed a significant correlation between CFTV and OSA indicators: AHI, ODI and T90 (Sp r: 0.48; 0.38 and 0.36; p < 0.01 respectively). CFTV cut-off value to discriminate AHI >15 ev/h with best sensitivity-specificity relationship was 64.1 ml with an area under the curve of 0.6 ± 0.06. Multivariate analysis showed that CFTV is a predictor for moderate to severe OSA (OR:3.05, IC95%: 1.14-8.17).

Conclusion Cervical fat quantification by CT cephalometry correlates with OSA severity in adults. Fat volume > 64.1 ml increased more than three times the risk of OSA moderate to severe.



Publication History

Received: 22 April 2022

Accepted: 27 November 2022

Article published online:
11 September 2023

© 2023. Brazilian Sleep Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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