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Comparison between tongue base and soft palate obstruction in obstructive sleep apnea

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Kim, Jeong Whun; Yoon, In Young; Chung, Seockhoon; Lee, Chul Hee; Moon, Sung Joong; Yun, Pil Young

Issue Date
Taylor & Francis
Acta Oto-Laryngologica, Vol.129 No.8, pp.855-861
Conclusions. In obstructive sleep apnea syndrome (OSAS), respiratory disturbances are more serious in tongue base-associated obstructions (TBOs) than in soft palate-associated obstructions (SPOs), and the proportion of TBO was predicted by average duration of apnea and hypopnea, and inversely by percentage time of snoring. Objective. To compare the polysomnographic characteristics of two main obstruction sites of OSAS, the soft palate and tongue base, and to identify those variables correlated with tongue base obstructions in patients with OSAS. Patients and methods. Thirty-one patients (28 men and 3 women) with OSAS were enrolled in this study. To identify airway obstruction levels upper airway pressure manometry was applied during polysomnography. Airway obstructions were categorized as SPO and TBO by observing pressure patterns. All analyses of events were performed in the supine position. Results. Average duration of apnea and hypopnea, percentage of apnea among apnea-hypopneas, average O(2) desaturation, and percentage of event-related arousals were significantly higher in TBOs compared with SPOs (all p<0.05). The percentage of TBO among total obstructions (TBO%) was independently associated with average duration of apnea and hypopnea (beta = 0.38, p<0.05) and percentage time of snoring (beta = 0.44, p<0.01) (adjusted R(2) = 30%, p<0.01).
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Yun, Pil Young윤필영
  • School of Dentistry
  • Department of Dentistry
Research Area Dentistry, Oral Pathology, Oral and Maxillofacial Surgery, 구강병리학, 구강악안면외과학, 치의학


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