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Inspiratory muscle training in patients with heart failure: meta-analysis of randomized trials.
Arq Bras Cardiol 2012; 99(2):762-71AB

Abstract

Patients with chronic heart failure (CHF) may have lower inspiratory muscle strength and endurance, which may contribute to exercise intolerance. Inspiratory muscle training (IMT) can have beneficial effects on these patients. Thus, the aim of this study was to systematically review the effects of IMT compared to control groups (placebo-IMT or another intervention) in patients with CHF. A search of databases (MEDLINE, Cochrane CENTRAL and PEDro) and references of published studies, from 1960 to 2011, was conducted. Randomized trials comparing IMT to control groups in the treatment of patients with CHF were included. The GRADE approach was used to determine the quality of evidence for each outcome. Of 119 articles identified, 7 studies were included. IMT increased the distance walked in the six-minute walk test [69 m (95% CI: 7.21 to 130.79)] (very low evidence) and maximal static inspiratory pressure [23.36 cmH20 (95% CI: 11.71 to 35.02)] (low evidence) compared to control groups. However, IMT provides a significant improvement in peak oxygen consumption only in the studies that performed IMT for 12 weeks against no inspiratory load in patients with inspiratory muscle weakness [3.02 ml/kg/min-1 (95% CI: 0.43 to 5.61)]. IMT improves functional capacity and inspiratory muscle strength thereby deserving consideration as an additional intervention in patients with CHF. Larger and better-designed studies, however, are needed to clarify the potential benefit of IMT in this patient population.

Authors+Show Affiliations

Departamento de Fisioterapia, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil. roplentz@yahoo.com.brNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Meta-Analysis
Research Support, Non-U.S. Gov't
Review

Language

eng por

PubMed ID

22964897

Citation

Plentz, Rodrigo Della Méa, et al. "Inspiratory Muscle Training in Patients With Heart Failure: Meta-analysis of Randomized Trials." Arquivos Brasileiros De Cardiologia, vol. 99, no. 2, 2012, pp. 762-71.
Plentz RD, Sbruzzi G, Ribeiro RA, et al. Inspiratory muscle training in patients with heart failure: meta-analysis of randomized trials. Arq Bras Cardiol. 2012;99(2):762-71.
Plentz, R. D., Sbruzzi, G., Ribeiro, R. A., Ferreira, J. B., & Dal Lago, P. (2012). Inspiratory muscle training in patients with heart failure: meta-analysis of randomized trials. Arquivos Brasileiros De Cardiologia, 99(2), pp. 762-71.
Plentz RD, et al. Inspiratory Muscle Training in Patients With Heart Failure: Meta-analysis of Randomized Trials. Arq Bras Cardiol. 2012;99(2):762-71. PubMed PMID: 22964897.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Inspiratory muscle training in patients with heart failure: meta-analysis of randomized trials. AU - Plentz,Rodrigo Della Méa, AU - Sbruzzi,Graciele, AU - Ribeiro,Rodrigo Antonini, AU - Ferreira,Janaína Barcellos, AU - Dal Lago,Pedro, PY - 2011/07/21/received PY - 2012/03/07/accepted PY - 2012/9/12/entrez PY - 2012/9/12/pubmed PY - 2013/4/16/medline SP - 762 EP - 71 JF - Arquivos brasileiros de cardiologia JO - Arq. Bras. Cardiol. VL - 99 IS - 2 N2 - Patients with chronic heart failure (CHF) may have lower inspiratory muscle strength and endurance, which may contribute to exercise intolerance. Inspiratory muscle training (IMT) can have beneficial effects on these patients. Thus, the aim of this study was to systematically review the effects of IMT compared to control groups (placebo-IMT or another intervention) in patients with CHF. A search of databases (MEDLINE, Cochrane CENTRAL and PEDro) and references of published studies, from 1960 to 2011, was conducted. Randomized trials comparing IMT to control groups in the treatment of patients with CHF were included. The GRADE approach was used to determine the quality of evidence for each outcome. Of 119 articles identified, 7 studies were included. IMT increased the distance walked in the six-minute walk test [69 m (95% CI: 7.21 to 130.79)] (very low evidence) and maximal static inspiratory pressure [23.36 cmH20 (95% CI: 11.71 to 35.02)] (low evidence) compared to control groups. However, IMT provides a significant improvement in peak oxygen consumption only in the studies that performed IMT for 12 weeks against no inspiratory load in patients with inspiratory muscle weakness [3.02 ml/kg/min-1 (95% CI: 0.43 to 5.61)]. IMT improves functional capacity and inspiratory muscle strength thereby deserving consideration as an additional intervention in patients with CHF. Larger and better-designed studies, however, are needed to clarify the potential benefit of IMT in this patient population. SN - 1678-4170 UR - https://www.unboundmedicine.com/medline/citation/22964897/Inspiratory_muscle_training_in_patients_with_heart_failure:_meta_analysis_of_randomized_trials_ L2 - http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0066-782X2012001100011&lng=en&nrm=iso&tlng=en DB - PRIME DP - Unbound Medicine ER -