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http://dx.doi.org/10.14476/jomp.2022.47.3.135

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)
Publication Information
Journal of Oral Medicine and Pain / v.47, no.3, 2022 , pp. 135-143 More about this Journal
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
Body mass index; Cephalometry; Obesity; Obstructive sleep apnea; Polysomnography;
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