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CC BY-NC-ND 4.0 · Sleep Sci 2022; 15(01): 82-87
DOI: 10.5935/1984-0063.20220028
ORIGINAL ARTICLE

The effects of lateral pharyngoplasty on carotid intima-media thickness in patients with obstructive sleep apnoea

Érika Pérez Iglesias 
1   Hospital do Servidor Público Estadual de São Paulo, Department of Otolaryngology - São Paulo - Brazil.
,
Michel Burihan Cahali
1   Hospital do Servidor Público Estadual de São Paulo, Department of Otolaryngology - São Paulo - Brazil.
2   Universidade de São Paulo, Department of Otolaryngology - São Paulo - Brazil.
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ABSTRACT

Introduction: Obstructive sleep apnea (OSA) is a known risk factor for development of carotid atherosclerosis. The treatment of OSA, through positive pressure devices or surgical procedures, may reduce the signs of subclinical atherosclerosis in apneic patients.

Objective: The decrease of carotid intima-media thickness (CIMT) after treatment of OSA remains a highly controversial issue. Our purpose is to compare CIMT, which represents an early sign of atherosclerosis, before and at least 6 months after lateral pharyngoplasty in patients with OSA.

Material and Methods: A total of 17 patients with OSA who underwent lateral pharyngoplasty were submitted to common carotid Doppler ultrasonography, 24-hour ambulatory blood pressure monitoring and type-1 polysomnography before and at least 6 months after surgery.

Results: The median apnoea-hypopnoea index decreased from 22.6 to 5.9 (p<0.001). There were significant improvements in the arousal index, minimum oxyhaemoglobin saturation, Epworth sleepiness scale and reported snoring intensity. The surgical success rate (Shers criteria) obtained with the procedure was 76.4%. There was no significant variation in the mean CIMT after surgeries (right carotid artery, mean, 0.67 and 0.72 mm; left carotid artery, mean, 0.69 and 0.70 mm, pre- and postoperative, respectively, both p>0.05). Blood pressure measurements also did not significantly change.

Conclusion: Notwithstanding a significant improvement in OSA after lateral pharyngoplasty, there was no significant reduction in CIMT in a follow-up of 6 months.

Keywords:

Sleep Apnea - Obstructive - Atherosclerosis - Carotid Intima-Media Thickness - Blood Pressure


Publication History

Received: 15 February 2021

Accepted: 28 June 2021

Article published online:
01 December 2023

© 2022. 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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