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2017 Jul-Sep; Vol 8, No 3:e4 |
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Pharyngeal Airway Dimensions and Head Posture in Obstructive Sleep Apnea Patients with and without Morphological Deviations in the Upper Cervical Spine J Oral Maxillofac Res 2017;8(3):e4 doi:10.5037/jomr.2017.8304 Abstract | HTML | PDF | XML |
Pharyngeal Airway Dimensions and Head Posture in Obstructive Sleep Apnea Patients with and without Morphological Deviations in the Upper Cervical Spine
1Section of Orthodontics, Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark.
2Department of Oral and Maxillofacial Radiology, Malmö University, Malmö, Sweden.
3Clinic for Infant and Adult Sleep Medicine, Lovisenberg Diakonale Sykehus, Oslo, Norway.
Corresponding Author:
Section of Orthodontics, Department of Odontology
Faculty of Health and Medical Sciences, University of Copenhagen
20 Nørre Alle, DK-2200, Copenhagen
Denmark
Phone: 0045 35 32 66 70
E-mail: alson@sund.ku.dk
ABSTRACT
Objectives: The aim of the study was to analyse differences in pharyngeal airway dimensions and head posture between obstructive sleep apnea patients with and without morphological deviations in the upper cervical spine and to analyse associations between pharyngeal airway dimensions and head posture in the total sample.
Material and Methods: The sample comprised 53 obstructive sleep apnea (OSA) patients of which 32.1% had upper spine morphological deviations. Accordingly two groups were defined: 17 OSA patients with morphological deviations in the upper spine and 36 without upper spine deviations. Pharyngeal airway dimensions in terms of distances, cross-sectional areas and volume and upper spine morphological deviations were evaluated on cone-beam computed tomography. Head posture was evaluated on two-dimensional generated lateral cephalograms. Differences were analysed and adjusted for age and gender by multiple linear regression analysis.
Results: OSA patients with upper spine morphological deviations had a significantly more backward and curved neck posture (OPT/HOR, P < 0.01; OPT/CVT, P < 0.05) compared to OSA patients without spine deviations. No significant differences were found in airway dimensions between patients with and without upper spine deviations. In the total group significant associations were found between head posture and pharyngeal airway distances and cross-sectional area at the nasal floor, epiglottis and hyoid bone level (P < 0.05, P < 0.01, P < 0.001). No significant association was found between head posture and airway volume.
Conclusions: The results may contribute to differentiate obstructive sleep apnea patients and thereby may prove valuable in diagnosis and treatment planning of obstructive sleep apnea patients.
J Oral Maxillofac Res 2017;8(3):e4
doi: 10.5037/jomr.2017.8304
Accepted for publication: 26 September 2017
Keywords: nasopharynx; obstructive sleep apnea; oropharynx; standing position; vertebral column.
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To cite this article: Pharyngeal Airway Dimensions and Head Posture in Obstructive Sleep Apnea Patients with and without Morphological Deviations in the Upper Cervical Spine J Oral Maxillofac Res 2017;8(3):e4 URL: http://www.ejomr.org/JOMR/archives/2017/3/e4/v8n3e4ht.htm |
Received: 18 August 2017 | Accepted: 26 September 2017 | Published: 30 September 2017
Copyright: © The Author(s). Published by JOMR under CC BY-NC-ND 3.0 licence, 2017.