Korean J Biol Psychiatry.  2015 Feb;22(1):14-19. 10.0000/kjbp.2015.22.1.14.

Cephalometric Variables Significantly Associated with Apnea Hypopnea Index in Suspected Obstructive Sleep Apnea Patients : A Preliminary Study

Affiliations
  • 1Department of Radiology, Gil Medical Center, Gachon University School of Medicine, Incheon, Korea. h2y@gilhospital.com
  • 2Department of Psychiatry, Gil Medical Center, Gachon University School of Medicine, Incheon, Korea.
  • 3Department of Otolaryngology, Gil Medical Center, Gachon University School of Medicine, Incheon, Korea.
  • 4Department of Neurology, Gil Medical Center, Gachon University School of Medicine, Incheon, Korea.

Abstract


OBJECTIVES
The purpose of this study is to find the cephalometric variables which are significantly correlated with the apnea-hypopnea index (AHI) in suspected Korean obstructive sleep apnea (OSA) patients.
METHODS
We examined lateral cephalogram and attended-full night laboratory polysomnography of the 40 participants who complained of OSA symptoms. The correlation analysis was conducted to find the cephalometric variables which are significantly correlated with the AHI.
RESULTS
The correlation analysis showed that the higher AHI was associated with the longer distance between hyoid and mandibular plane (p = 0.023), the longer distance between C3 and hyoid (p = 0.014), the longer tongue length (p = 0.003), the larger inferior tongue area (p = 0.008), the larger anterior displacement of the hyoid bone (p = 0.024), the longer distance between posterior nasal spine and the tip of the soft palate (p = 0.021), and the larger cross-sectional area of soft palate (p = 0.001) of cephalogram in erect position. The higher AHI was correlated with the longer distance between hyoid and mandibular plane (p = 0.008), the longer tongue length (p = 0.037), the larger inferior tongue area (p = 0.013), the thicker uvula (p = 0.004), the longer distance between retrognathion and hyoid (p = 0.025), and larger cross-sectional area of soft palate (p = 0.001) of cephalogram in supine position.
CONCLUSIONS
The present preliminary results showed the candidate measurements of cephalogram which are significantly correlated with the AHI in suspected OSA.

Keyword

Cephalometry; Obstructive sleep apnea

MeSH Terms

Apnea*
Cephalometry
Humans
Hyoid Bone
Palate, Soft
Polysomnography
Sleep Apnea, Obstructive*
Spine
Supine Position
Tongue
Uvula
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