Association of Oscillatory Ventilation during Cardiopulmonary Test to Clinical and Functional Variables of Chronic Heart Failure Patients

Association of Oscillatory Ventilation during Cardiopulmonary Test to Clinical and Functional Variables of Chronic Heart Failure Patients

Author Reis, Hugo Valverde Google Scholar
Sperandio, Priscila Abreu Autor UNIFESP Google Scholar
Correa, Clynton Lourenco Google Scholar
Guizilini, Solange Autor UNIFESP Google Scholar
Neder, Jose Alberto Autor UNIFESP Google Scholar
Borghi-Silva, Audrey Google Scholar
Reis, Michel Silva Google Scholar
Abstract Objective: The aim of this study is to characterize the presence of exercise oscillatory ventilation (EOV) and to relate it with other cardiopulmonary exercise test (CET) responses and clinical variables. Methods: Forty-six male patients (age: 53.1 +/- 13.6 years old

left ventricular ejection fraction [LVEF]: 30 +/- 8%) with heart failure were recruited to perform a maximal CET and to correlate the CET responses with clinical variables. The EOV was obtained according to Leite et al. criteria and VE/VCO2 > 34 and peak VO2 < 14 ml/kg/min were used to assess patients' severity. Results: The EOV was observed in 16 of 24 patients who performed the CET, as well as VE/VCO2 > 34 and peak VO2 < 14 ml/kg/min in 14 and 10 patients, respectively. There was no difference in clinical and CET variables of the patients who presented EOV in CET when compared to non-EOV patients. Also, there was no difference in CET and clinical variables when comparing patients who presented EOV and had a VE/VCO2 slope > 34 to patients who just had one of these responses either. Conclusion: The present study showed that there was an incidence of patients with EOV and lower peak VO2 and higher VE/VCO2 slope values, but they showed no difference on other prognostic variables. As well, there was no influence of the presence of EOV on other parameters of CET in this population, suggesting that this variable may be an independent marker of worst prognosis in HF patients.
Keywords Heart Failure
Exercise Test
Respiratory Mechanics
Physical Exertion
xmlui.dri2xhtml.METS-1.0.item-coverage Sao Paulo Sp
Language English
Sponsor Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro (FAPERJ)
Date 2018
Published in Brazilian Journal Of Cardiovascular Surgery. Sao Paulo Sp, v. 33, n. 2, p. 176-182, 2018.
ISSN 0102-7638 (Sherpa/Romeo, impact factor)
Publisher Soc Brasil Cirurgia Cardiovasc
Extent 176-182
Origin http://dx.doi.org/10.21470/1678-9741-2017-0158
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000432882600012
SciELO ID S0102-76382018000200176 (statistics in SciELO)
URI https://repositorio.unifesp.br/handle/11600/54286

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