Impact of chronic obstructive pulmonary disease on linear and nonlinear dynamics of heart rate variability in patients with heart failure
| Autor: | C.L. Goulart, F.R. Caruso, G.P.T. Arêas, P.B. dos Santos, P.F. Camargo, L.C.S. de Carvalho, M.G. Roscani, R.G. Mendes, A. Borghi-Silva |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Brazilian Journal of Medical and Biological Research, Vol 54, Iss 2 (2020) |
| Druh dokumentu: | article |
| ISSN: | 1414-431X 1414-431x |
| DOI: | 10.1590/1414-431x202010084 |
| Popis: | The objective of this study was to investigate the impact of chronic obstructive pulmonary disease (COPD)-heart failure (HF) coexistence on linear and nonlinear dynamics of heart rate variability (HRV). Forty-one patients (14 with COPD-HF and 27 HF) were enrolled and underwent pulmonary function and echocardiography evaluation to confirm the clinical diagnosis. Heart rate (HR) and R-R intervals (iRR) were collected during active postural maneuver (APM) [supine (10 min) to orthostasis (10 min)], respiratory sinus arrhythmia maneuver (RSA-M) (4 min), and analysis of frequency domain, time domain, and nonlinear HRV. We found expected autonomic response during orthostatic changes with reduction of mean iRR, root mean square of successive differences between heart beats (RMSSD), RR tri index, and high-frequency [HF (nu)] and an increased mean HR, low-frequency [LF (nu)], and LF/HF (nu) compared with supine only in HF patients (P |
| Databáze: | Directory of Open Access Journals |
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