| Influence of Four Interfaces in the Assessment of Maximal Respiratory Pressures. | |
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MedLine Citation:
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PMID: 22005049 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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BACKGROUND: The measurement of Maximal Respiratory Pressure (MRP) is a procedure widely used in clinical practice to evaluate respiratory muscle strength through the Maximal Inspiratory Pressure (PImax) and Maximal Expiratory Pressure (PEmax). Its clinical applications include diagnostic procedures and evaluating responses to interventions. However, there is great variability in the equipment and measurement procedures. Understanding the impacts of the characteristics of different interfaces can augment the repeatability of this method and help to establish widely applicable predictive equations. The aim of this study was to evaluate the influence of four different interfaces on a subject's capacity to generate maximal respiratory pressure and the impact of these interfaces on the repeatability of these measurements. METHODS: Fifty healthy subjects aged 26.36 (4.89) years old and with normal spirometry were evaluated. MRP was measured by a digital manometer connected to four interfaces using different combinations of mouthpieces and tubes. The following variables were analyzed: maximum mean pressure, peak pressure, plateau pressure and plateau variation. ANOVA for repeated measures or a Friedman Test were used to compare the four interfaces, with p<.008 after Bonferroni adjustment considered significant. RESULTS: There was no significant difference between the four interfaces with respect to maximum mean pressure, peak pressure, plateau pressure or plateau variation for PImax (p≥ .49) or PEmax (p≥ .11), nor did the number of tests performed to fulfill the criteria of repeatability for PImax (p= .69) or PEmax (p= .47) differ among the four interfaces. CONCLUSIONS: PImax and PEmax values seem not to be influenced by the different interfaces studied, suggesting that patient comfort and availability of interfaces could be considered. |
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Authors:
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Dayane Montemezzo; Danielle Rocha Vieira; Carlos Julio Tierra-Criollo; Raquel Rodrigues Britto; Marcelo Velloso; Verônica Franco Parreira |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-10-12 |
Journal Detail:
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Title: Respiratory care Volume: - ISSN: 0020-1324 ISO Abbreviation: - Publication Date: 2011 Oct |
Date Detail:
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Created Date: 2011-10-18 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7510357 Medline TA: Respir Care Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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