Title Equivocal Results for Hyoid Bone Position and Obstructive Sleep Apnea Severity
Clinical Question For patients with obstructive sleep apnea, does a more inferiorly displaced hyoid bone correlate with a more severe form of OSA?
Clinical Bottom Line Results for this question are equivocal. More research is needed to accurately answer this question.
Best Evidence  
PubMed ID Author / Year Patient Group Study type
(level of evidence)
18054259Stuck/2008219 references in review.Journal review article
Key results4 articles support the fact that certain anatomic variables, such as hyoid bone position, were more predictive of severe OSA.
20191940Gulati/2010106 patients at the orthodontic department at Colchester University Hospital.Retrospective study
Key resultsThere was no correlation found between the hyoid bone position and the severity of the OSA.
Evidence Search "Sleep Apnea, Obstructive/diagnosis"[Mesh] AND "Airway Obstruction/diagnosis"[Mesh] AND (Review[ptyp] OR systematic[sb])
Comments on
The Evidence
Validity: patients varied widely from the different studies used in this review; of the 4 that supported this cat, the first one looked at lateral cephalometric radiograph measurements compared to severity (Bates and McDonald, 2005). The second one was a retrospective study of 206 Japanese men and their respective clinical records (Kubota, 2005). The third cited article studied cephalometric studies (Nagunuma 2002). The last article was a randomized retrospective study of 94 lateral cephalograms between April 1996 to September 1997. For the Gulati article, that article could not invalidate the previous articles because there were a small number of patients in the severe-OSA group in this study. Another limitation is that this was a retrospective study. Another problem was that a quarter of the original sample was excluded due to missing information.
Applicability This evidence is applicable to the proposed population in the PICO question.
Specialty (General Dentistry) (Prosthodontics)
Keywords Obstructive sleep apnea, soft palate, cephalometry, intermaxillary divergence
ID# 2480
Date of submission 04/18/2013
E-mail ryanjk@livemail.uthscsa.edu
Author Joseph Ryan
Co-author(s)
Co-author(s) e-mail
Faculty mentor Ann Larsen DDS, MS
Faculty mentor e-mail ajortho@yahoo.com
   
Basic Science Rationale
(Mechanisms that may account for and/or explain the clinical question, i.e. is the answer to the clinical question consistent with basic biological, physical and/or behavioral science principles, laws and research?)
None available
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Comments and Evidence-Based Updates on the CAT
(FOR PRACTICING DENTISTS', FACULTY, RESIDENTS and/or STUDENTS COMMENTS ON PUBLISHED CATs)
None available