The Maximal Expiratory-to-Inspiratory Pressure Ratio and Supine Vital Capacity as Screening Tests for Diaphragm Dysfunction

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• 作者：Patrick Koo ; Dennis O. Oyieng’o ; Eric J. Gartman ; Jigme M. Sethi ; Charles B. Eaton…
• 关键词：Diaphragm ; Diaphragm paralysis ; Pulmonary function testing ; Respiratory measurement ; Respiratory muscles
• 刊名：Lung
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：195
• 期：1
• 页码：29-35
• 全文大小：
• 刊物类别：Medicine
• 刊物主题：Pneumology/Respiratory System;
• 出版者：Springer US
• ISSN：1432-1750
• 卷排序：195

文摘

Purpose The change in vital capacity from the seated to supine position (∆VC-supine) is used to screen for diaphragm dysfunction (DD), but some individuals are unable to tolerate the supine position. Since expiratory muscle function is often preserved in patients with isolated DD and inspiratory strength is reduced, the purpose of this study was to examine if the ratio of maximal expiratory pressure to maximal inspiratory pressure (MEP/MIP) may provide an alternative to ∆VC-supine when screening patients for DD.