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Effect of Posture on Airway Resistance in Obstructive Sleep Apnea-Hypopnea Syndrome by Means of Impulse Oscillation
Cao, Ju; Que, Chengli; Wang, Guangfa; He, Bing
关键词Obstructive Sleep Apnea-hypopnea Syndrome Impulse Oscillation Airway Resistance Posture
刊名RESPIRATION
2009
77期:1页:38-43
收录类别SCI
文章类型Article
WOS标题词Science & Technology
类目[WOS]Respiratory System
研究领域[WOS]Respiratory System
关键词[WOS]FORCED OSCILLATION ; FLOW ; IMPEDANCE
英文摘要

Background: There is more than one mechanism which contributes to the increases in upper airway resistance in obstructive sleep apnea and hypopnea syndrome. Impulse oscillation provides a convenient way of noninvasive monitoring and differentiating the contributions of airway resistance. Objective: To evaluate the effect of posture on airway resistance in obstructive sleep apnea-hypopnea syndrome (OSAHS) by means of impulse oscillation. Methods: Ten subjects without OSAHS proved by polysomnography served as controls, 14 patients with mild or moderate OSAHS and another 20 severe OSAHS patients were studied. All subjects underwent an overnight sleep study. Airway resistance was measured by impulse oscillometry, and spirometry was performed in the seated position and then in the supine position while awake. Results: Compared with controls, the severe and the mild-moderate OSAHS groups had significantly bigger changes in Zrs, Rrs5, R20 and R35 due to posture. There were also significant differences in R10, R15 and R25 between the severe OSAHS and the control groups. Besides, the group differences between the severe and the mild-moderate groups regarding the magnitude of this change were not significant. The correlation coefficients between apnea/hypopnea index and Zrs, R5 and R20 in supine position were 0.487, 0.486 and 0.485, respectively. Conclusion:The magnitude of change in airway resistance due to posture is bigger in OSAHS than in non-OSAHS. Zrs, R5 and R20 in supine position were associated moderately with apnea/hypopnea index. Copyright (c) 2008 S. Karger AG, Basel

语种英语
WOS记录号WOS:000261827300006
引用统计
被引频次:19[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/54100
专题北京大学第一临床医学院
北京大学第一临床医学院_呼吸科
作者单位Peking Univ, Hosp 1, Div Resp, Resp Dept Internal Med, Beijing 100034, Peoples R China
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GB/T 7714
Cao, Ju,Que, Chengli,Wang, Guangfa,et al. Effect of Posture on Airway Resistance in Obstructive Sleep Apnea-Hypopnea Syndrome by Means of Impulse Oscillation[J]. RESPIRATION,2009,77(1):38-43.
APA Cao, Ju,Que, Chengli,Wang, Guangfa,&He, Bing.(2009).Effect of Posture on Airway Resistance in Obstructive Sleep Apnea-Hypopnea Syndrome by Means of Impulse Oscillation.RESPIRATION,77(1),38-43.
MLA Cao, Ju,et al."Effect of Posture on Airway Resistance in Obstructive Sleep Apnea-Hypopnea Syndrome by Means of Impulse Oscillation".RESPIRATION 77.1(2009):38-43.
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