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KMID : 1101020220470030135
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Journal of Oral Medicine and Pain
2022 Volume.47 No. 3 p.135 ~ p.143
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Polysomnographic and Cephalometric Evaluation of Patients with Obstructive Sleep Apnea According to Obesity Level
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Abstract
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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.
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KEYWORD
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Body mass index, Cephalometry, Obesity, Obstructive sleep apnea, Polysomnography
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