Coronary artery bypass surgery and longitudinal evaluation of the autonomic cardiovascular function

Coronary artery bypass surgery and longitudinal evaluation of the autonomic cardiovascular function

Autor Soares, Pedro Paulo S Google Scholar
Moreno, Adalgiza M. Google Scholar
Cravo, Sergio LD Autor UNIFESP Google Scholar
Nobrega, Antonio Claudio L Google Scholar
Instituição Universidade Federal Fluminense (UFF)
Ctr Univ Triangulo Mineiro
Universidade Federal de São Paulo (UNIFESP)
Resumo Introduction Imbalance in autonomic cardiovascular function increases the risk for sudden death in patients with coronary artery disease (CAD), but the time course of the impact of coronary artery bypass grafting (CABG) on autonomic function has been little studied. Thus, the purpose of the present study was to determine the effects of the CABG on the cardiovascular autonomic function.Methods Patients undergoing CABG (n = 13) and two matched control groups ( patients with CAD who refused surgical treatment [n = 9], and healthy volunteers [n = 9]) underwent a prospective longitudinal study consisting of autonomic evaluation before and after (3, 6, 15, 30, 60, and 90 days) surgery, including measurement of heart rate variability (HRV), respiratory sinus arrhythmia (RSA), and Valsalva maneuver.Results After CABG there was a decrease in, and a later recovery of, ( 1) the HRV in the time domain and in the frequency domain, ( 2) RSA, and ( 3) Valsalva maneuver.Conclusions CABG caused an impairment, reversible after 60 days, of cardiovascular autonomic function, with a maximal decrease on about the sixth day after surgery.
Idioma Inglês
Data de publicação 2005-04-01
Publicado em Critical Care. London: Biomed Central Ltd, v. 9, n. 2, p. R124-R131, 2005.
ISSN 1466-609X (Sherpa/Romeo, fator de impacto)
Publicador Biomed Central Ltd
Extensão R124-R131
Direito de acesso Acesso aberto Open Access
Tipo Artigo
Web of Science WOS:000227588300011
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