Journal of Oral Medicine and Pain

Korean Academy of Orofacial Pain and Oral Medicine (대한안면통증구강내과학회)
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Polysomnographic and Cephalometric Evaluation of Patients with Obstructive Sleep Apnea According to Obesity Level

  • Jo, Jung Hwan (Department of Oral Medicine, Seoul National University Dental Hospital) ;
  • Park, Ji Woon (Department of Oral Medicine, Seoul National University Dental Hospital) ;
  • Jang, Ji Hee (Department of Oral Medicine, Seoul National University Dental Hospital) ;
  • Chung, Jin Woo (Department of Oral Medicine, Seoul National University Dental Hospital)
  • Received : 2022.09.23
  • Accepted : 2022.09.25
  • Published : 2022.09.30
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Abstract

Purpose: This study aimed to evaluate polysomnographic and cephalometric characteristics of patients with OSA according to obesity level based on the World Health Organization (WHO) Asian-Pacific BMI criteria. Methods: One hundred and thirty-one consecutive patients with obstructive sleep apnea (OSA) were evaluated using standard level 1 polysomnography and cephalometric analyses. The subjects were categorized into normal, overweight and obese groups according to the WHO Asian-Pacific BMI criteria. Respiratory indices and cephalometric parameters were compared among groups. Results: The 131 patients consisted of 111 males and 20 females, with a mean age of 44.1±12.4 years. The mean value of BMI was 25.3±3.4 kg/m2 for all subjects, 20.6±2.2 kg/m2 for normal (n=27), 24.0±0.5 kg/m2 for overweight (n=33) and 27.6±2.2 kg/m2 for obese (n=71). The obese group had a significantly higher apnea-hypopnea index (AHI) and respiratory arousal index and lower oxygen saturation level than the normal group (p<0.05). Total AHI, mean oxygen saturation level and respiratory arousal index were significantly correlated with BMI (p<0.001). A longer soft palate and anterior position of the hyoid bone were significantly correlated with BMI level (p ≤0.05). Conclusions: Obese patients have a higher risk of compromised craniofacial skeletal features and soft tissue structures, and severe OSA than non-obese patients.

Keywords

Acknowledgement

This study was partially supported by the National Evidence-based Healthcare Collaborating Agency (grant number: NA20-012).

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