Effects of the continuous positive airway pressure on the airways of patients with chronic heart failure.
Arq Bras Cardiol
; 95(1): 115-21, 2010 Jul.
Article
em En, Pt
| MEDLINE
| ID: mdl-20563517
BACKGROUND: Heart failure can present with asymptomatic dysfunction at decompensation, with limitations and decrease in the productive capacity. The Continuous Positive Airway Pressure (CPAP) is a non-pharmacological means to decrease afterload. OBJECTIVE: To analyze the effects of CPAP (10 cmH2O), for 30 days in patients with chronic heart failure. METHODS: We assessed 10 patients with heart failure (6 males, 4 females) of several etiologies, with a mean age of 54 +/- 14 years, with a BMI of 21 +/- 0.04 kg/m(2). The therapy was applied for 60 min., 5 times a week for 30 days, during the daytime. The echocardiogram and the ergospirometry were analyzed, before and 30 days after the therapy. RESULTS: There was a 19.59% increase in the left ventricular ejection fraction (LVEF): 23.9 +/- 8.91 vs 27.65 +/- 9.56%; p = 0.045. At the ergospirometry, the exercise time (ET) showed a significant increase from 547 +/- 151.319 vs 700 +/- 293.990 sec., p = 0.02; oxygen consumption (VO2) was 9.59 +/- 6.1 vs 4.51 +/- 2.67 ml x kg(-1) x min(-1), p = 0.01, whereas the carbon dioxide production (VCO2) at rest (9.85 +/- 4.38 vs 6.44 +/- 2.88 ml x kg(-1) x min(-1), p = 0.03) decreased. CONCLUSION: The CPAP resulted in an increase in the LVEF and ET, decreased the oxygen consumption and the carbon dioxide production at rest.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Pressão Positiva Contínua nas Vias Aéreas
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Insuficiência Cardíaca
Limite:
Female
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Humans
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Male
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Middle aged
Idioma:
En
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Pt
Revista:
Arq Bras Cardiol
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Brasil