Differences in peak cough flow values assessed by mouthpiece and facemask on healthy subjects

Background: Coughing is the most important mechanism for evacuating mucus secretions from the airways. Its efficacy directly depends on the Peak Cough Flow (PCF), the maximum air-flow generated during a cough. PCF is used to assess cough in patients with respiratory muscle weakness, mainly in neurom...

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Autor principal: Torres-Castro, Rodrigo
Formato: Online
Idioma:eng
Publicado em: UFRN
Endereço do item:https://periodicos.ufrn.br/revistadefisioterapia/article/view/6704
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spelling oai:periodicos.ufrn.br:article-67042017-05-11T18:36:15Z Differences in peak cough flow values assessed by mouthpiece and facemask on healthy subjects Torres-Castro, Rodrigo Peak Cough Flow cough facemask mouthpiece and neuromuscular disease Background: Coughing is the most important mechanism for evacuating mucus secretions from the airways. Its efficacy directly depends on the Peak Cough Flow (PCF), the maximum air-flow generated during a cough. PCF is used to assess cough in patients with respiratory muscle weakness, mainly in neuromuscular diseases. This measure is performed using a flow meter. However, the literature describes two forms of evaluation: one using a facemask or and the other using a cylindrical mouthpiece and a nose clip. Objective: To compare the efficacy of measuring the PCF using a cylindrical disposable mouthpiece and a nose clip (PCFmouth) with measurements obtained using a silicone facemask with an inflatable pneumatic border (PCFmask) in healthy adults.Method: We recruited 34 (16 men) healthy adult subjects that performed the cough maneuver. Three valid maneuvers were performed by each of the subjects to obtain reproducible values. The PCF was measured using both interfaces applied in a random order. Results: The population characteristics were: mean age 22.1 ± 2.3 years (range 18-29), 11 smokers (32.4%) and 12 subjects (35.3%) performed physical activity at least 3 times per week. The PCFmouth was 4.6% higher than the PCFmask (499.1 ± 114.5 vs. 477.9 ± 94.5 L/min), exhibiting a statistically significant difference (p < 0.01).Conclusion: In a healthy population, there is a significant difference in PCF values obtained using a mouthpiece with a nose clip versus a facemask. Based on these results, we recommend using a mouthpiece to obtain the best peak cough flow measurement.  UFRN 2016-04-12 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artigo avaliado pelos Pares application/pdf https://periodicos.ufrn.br/revistadefisioterapia/article/view/6704 Journal of Respiratory and CardioVascular Physical Therapy; Vol. 3 No. 1 (2014); 14-19 Revista de Fisioterapia Respiratória e CardioVascular; v. 3 n. 1 (2014); 14-19 2238-4677 eng https://periodicos.ufrn.br/revistadefisioterapia/article/view/6704/6421 Copyright (c) 2016 Revista de Fisioterapia Respiratória e CardioVascular
institution Periódicos UFRN
collection Portal de Pediódicos Eletrônicos da UFRN
language eng
format Online
author Torres-Castro, Rodrigo
spellingShingle Torres-Castro, Rodrigo
Differences in peak cough flow values assessed by mouthpiece and facemask on healthy subjects
author_facet Torres-Castro, Rodrigo
author_sort Torres-Castro, Rodrigo
title Differences in peak cough flow values assessed by mouthpiece and facemask on healthy subjects
title_short Differences in peak cough flow values assessed by mouthpiece and facemask on healthy subjects
title_full Differences in peak cough flow values assessed by mouthpiece and facemask on healthy subjects
title_fullStr Differences in peak cough flow values assessed by mouthpiece and facemask on healthy subjects
title_full_unstemmed Differences in peak cough flow values assessed by mouthpiece and facemask on healthy subjects
title_sort differences in peak cough flow values assessed by mouthpiece and facemask on healthy subjects
description Background: Coughing is the most important mechanism for evacuating mucus secretions from the airways. Its efficacy directly depends on the Peak Cough Flow (PCF), the maximum air-flow generated during a cough. PCF is used to assess cough in patients with respiratory muscle weakness, mainly in neuromuscular diseases. This measure is performed using a flow meter. However, the literature describes two forms of evaluation: one using a facemask or and the other using a cylindrical mouthpiece and a nose clip. Objective: To compare the efficacy of measuring the PCF using a cylindrical disposable mouthpiece and a nose clip (PCFmouth) with measurements obtained using a silicone facemask with an inflatable pneumatic border (PCFmask) in healthy adults.Method: We recruited 34 (16 men) healthy adult subjects that performed the cough maneuver. Three valid maneuvers were performed by each of the subjects to obtain reproducible values. The PCF was measured using both interfaces applied in a random order. Results: The population characteristics were: mean age 22.1 ± 2.3 years (range 18-29), 11 smokers (32.4%) and 12 subjects (35.3%) performed physical activity at least 3 times per week. The PCFmouth was 4.6% higher than the PCFmask (499.1 ± 114.5 vs. 477.9 ± 94.5 L/min), exhibiting a statistically significant difference (p < 0.01).Conclusion: In a healthy population, there is a significant difference in PCF values obtained using a mouthpiece with a nose clip versus a facemask. Based on these results, we recommend using a mouthpiece to obtain the best peak cough flow measurement. 
publisher UFRN
publishDate 2016
url https://periodicos.ufrn.br/revistadefisioterapia/article/view/6704
work_keys_str_mv AT torrescastrorodrigo differencesinpeakcoughflowvaluesassessedbymouthpieceandfacemaskonhealthysubjects
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