폐쇄성 수면 무호흡 환자에서 기도폐쇄 위치에 따른수면다원검사 지수들의 비교
Comparison of Polysomnographic Findings according toObstruction Sites in Obstructive Sleep Apnea Patients
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Abstract
Background and Objectives：The aim of this study is to identify diferences in polysomnographic findings acording to the upper airway obstruction level in patients with obstructive sleep apnea (OSA). Subjects and Method：Eighty-four patients with OSA were included in this study. Every patient underwent polysomnography (PSG) and upper airway pressure measurement using tis, and mid-esophagus level, which was inserted through the nasal cavity down to the esophagus. The patients were categorized into two groups of single site obstruction and multi-site obstruction. Results：Twenty-one patients showed single site obstruction and sixty-three patients showed multi-site obstruction. Apnea-hypopnea index, apnea index, and minimal oxygen saturation showed statis-tically significant diferences betwen two groups. There was no diference in bony mas index (BMI). Conclusion：Uper airway pressure measurement can be a method to evaluate the upper airway obstruction site. This study shows that OSA patients with multi-site obstruction have severer slep apnea than those with single site obstruction. (Korean J Otorhinolaryngol-Head Neck Surg 2007 ;50 :779-83)
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