Effects of chest wall compression on expiratory flow rates in patients with chronic obstructive pulmonary disease
Braz. j. phys. ther. (Impr.)
;
20(2): 158-165, Mar.-Apr. 2016. tab, graf
Artigo
em Inglês
| LILACS
| ID: lil-783871
ABSTRACT
Background:
Manual chest wall compression (CWC) during expiration is a technique for removing airway secretions in patients with respiratory disorders. However, there have been no reports about the physiological effects of CWC in patients with chronic obstructive pulmonary disease (COPD).Objective:
To compare the effects of CWC on expiratory flow rates in patients with COPD and asymptomatic controls.Method:
Fourteen subjects were recruited from among patients with COPD who were receiving pulmonary rehabilitation at the University Hospital (COPD group). Fourteen age-matched healthy subjects were also consecutively recruited from the local community (Healthy control group). Airflow and lung volume changes were measured continuously with the subjects lying in supine position during 1 minute of quiet breathing (QB) and during 1 minute of CWC by a physical therapist.Results:
During CWC, both the COPD group and the healthy control group showed significantly higher peak expiratory flow rates (PEFRs) than during QB (mean difference for COPD group 0.14 L/sec, 95% confidence interval (CI) 0.04 to 0.24, p<0.01, mean difference for healthy control group 0.39 L/sec, 95% CI 0.25 to 0.57, p<0.01). In the between-group comparisons, PEFR was significantly higher in the healthy control group than in the COPD group (-0.25 L/sec, 95% CI -0.43 to -0.07, p<0.01). However, the expiratory flow rates at the lung volume at the PEFR during QB and at 50% and 25% of tidal volume during QB increased in the healthy control group (mean difference for healthy control group 0.31 L/sec, 95% CI 0.15 to 0.47, p<0.01 0.31 L/sec, 95% CI 0.15 to 0.47, p<0.01 0.27 L/sec, 95% CI 0.13 to 0.41, p<0.01, respectively) but not in the COPD group (0.05 L/sec, 95% CI -0.01 to 0.12 -0.01 L/sec, 95% CI -0.11 to 0.08 0.02 L/sec, 95% CI -0.05 to 0.90) with the application of CWC.Conclusion:
The effects of chest wall compression on expiratory flow rates was different between COPD patients and asymptomatic controls.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Pico do Fluxo Expiratório
/
Doença Pulmonar Obstrutiva Crônica
/
Parede Torácica
/
Pulmão
Tipo de estudo:
Guia de Prática Clínica
Limite:
Humanos
Idioma:
Inglês
Revista:
Braz. j. phys. ther. (Impr.)
Assunto da revista:
MEDICINA FISICA E REABILITACAO
Ano de publicação:
2016
Tipo de documento:
Artigo
País de afiliação:
Japão
Instituição/País de afiliação:
Konan Women's University/JP
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