ISSN : 2146-3123
E-ISSN : 2146-3131

Comparison of Cephalometric Variables in Non-obese and Obese Patients with Obstructive Sleep Apnea
Önder Öztürk 1, Mehmet Has 1, Ahmet Akkaya 1, Süleyman Hakan Tuna 2, Hüseyin Alkış 3, Hakan Türkkahraman 3, Hüseyin Avni Balcıoğlu 4
1Department of Chest Diseases, Sleep Disorders Center, Faculty of Medicine, Süleyman Demirel University, Isparta, Turkey
2Department of Prosthodontics, Faculty of Dentistry, Süleyman Demirel University, Isparta, Turkey
3Department of Orthodontics, Faculty of Dentistry, Süleyman Demirel University, Isparta, Isparta, Turkey
4Department of Anatomy, Faculty of Dentistry, İstanbul University, İstanbul, Turkey
DOI : 10.5174/tutfd.2010.04093.1
Pages : 244-251


Objective: To compare the cephalometric variables of obese (body mass index (BMI) ≥30) and non-obese (BMI<30) Turkish male patients with obstructive sleep apnea syndrome (OSAS).

Materials and Methods: OSAS diagnosed 85 patients who were obese [n=37; mean age (±SE), 49.41±1.54 year] and non-obese [n=48; mean age (±SE) 46.92±1.39 year] were included in the study. The cephalometric measurements and polysomnographic data of the patients were compared and a discriminatory analysis was performed.

Results: The apnea-hypopnea index (AHI) was significantly higher in obese patients (p<0.01). Bimaxillary protrusion was found in obese patients (p<0.05). The non-obese patients with AHI ≥ 30 had an increased mandibular plane angle In the stepwise discriminant analysis done separately in obese and non-obese patients according to AHI; only the hyoid bone position was included in the model in obese patients and the estimated success of discrimination of AHI's level (<30 and ≥30) was 70.3%. Age, anterior face and posterior face height were included to the model in non-obese patients and the estimated success of discrimination was found as 79.2%.

Conclusion: Craniofacial morphology has an effect on the severity of OSAS. If the craniofacial morphology tends toward a worsening of OSAS with obesity, the severity of the OSAS increases.

Keywords : Cephalometry, obesity, obstructive sleep apnea syndrome, polysomnography
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