Maxillofac Plast Reconstr Surg.  2019 ;41(1):58. 10.1186/s40902-019-0242-0.

Gender-specific cephalometric features related to obesity in sleep apnea patients: trilogy of soft palate-mandible-hyoid bone

Affiliations
  • 1Department of Otorhinolaryngology-Head and Neck Surgery, School of Medicine, Hanyang University, Seoul, Korea.
  • 2Department of Dentistry/Oral and Maxillofacial Surgery, School of Medicine, Hanyang University, 222-1 Wangshimniro, Seongdong-gu, Seoul, 133-792 Korea. hkg@hanyang.ac.kr
  • 3Department of Oral and Maxillofacial Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, USA.
  • 4Vienna, USA.
  • 5Department of Occupational Medicine, Kangbuk Samsung Hospital, School of Medicine, Sungkyunkwan University, Seoul, Korea.

Abstract

BACKGROUND
The aim of this study is to investigate the relationship between gender-specific and obesity-related airway anatomy in patients with obstructive sleep apnea (OSA) by using cephalometric analyses.
METHODS
We retrospectively evaluated 206 patients with suspected OSA undergoing polysomnography and anthropometric measurements such as body mass index, neck circumference, and waist-hip ratio. We checked lateral cephalometry to measure tissue landmarks including angle from A point to nasion to B point (ANB), soft palate length (SPL), soft palate thickness (SPT), retropalatal space (RPS), retrolingual space (RLS), and mandibular plane to hyoid (MPH).
RESULTS
Male with OSA showed significantly increased SPL (P = .006) compared with controls. SPL and MPH had significant correlation with apnea-hypopnea index (AHI) and central obesity. Female with OSA showed significantly increased ANB (P = .013) and SPT (P = .004) compared with controls. The receiver operating characteristic curves revealed that SPT in male and ANB and SPT in female were significant in model 1 (AHI ≥ 5) and model 2 (AHI ≥ 15). MPH was also significant for male in model 2.
CONCLUSION
Male and female with OSA had distinct anatomic features of the upper airway and different interactions among soft palate, mandible, and hyoid bone.

Keyword

Central obesity; Cephalometry; Gender; Sleep disorders; Airway

MeSH Terms

Body Mass Index
Cephalometry
Female
Humans
Hyoid Bone
Male
Mandible
Neck
Obesity*
Obesity, Abdominal
Palate, Soft
Polysomnography
Retrospective Studies
ROC Curve
Sleep Apnea Syndromes*
Sleep Apnea, Obstructive
Sleep Wake Disorders
Waist-Hip Ratio
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