TY - JOUR
T1 - Twenty-four-hour spectral analysis of heart rate variability in congestive heart failure secondary to coronary artery disease
AU - Casolo, Giancarlo
AU - Balli, Enrico
AU - Fazi, Antonio
AU - Gori, Cesare
AU - Freni, Angelo
AU - Gensini, Gianfranco
PY - 1991/5/15
Y1 - 1991/5/15
N2 - It is well known that heart rate (HR) fluctuates in time and that this variation is closely related to changes in the neural activity to the heart.1,2 Therefore, HR variability represents a noninvasive parameter for studying the autonomic control to the heart. Recently, it has been shown that HR variability is a powerful independent prognostic factor in patients with coronary artery disease3 and a low HR variability count has been found to be related to sudden death.4 Spectrum analysis of HR may provide further information, since HR variability possesses 2 major components that have been shown to relate to different patterns of neural control to the heart.5,6 Patients with congestive heart failure (CHF) have a complex abnormality of the autonomic control to the heart7 that also affects some HR characteristics.8 These abnormalities may be determined either by a selective reduction of the vagal outflow to the heart or by a more complex abnormality. This investigation was undertaken to evaluate the components of HR variability in normal persons and patients with CHF, and their 24-hour behavior.
AB - It is well known that heart rate (HR) fluctuates in time and that this variation is closely related to changes in the neural activity to the heart.1,2 Therefore, HR variability represents a noninvasive parameter for studying the autonomic control to the heart. Recently, it has been shown that HR variability is a powerful independent prognostic factor in patients with coronary artery disease3 and a low HR variability count has been found to be related to sudden death.4 Spectrum analysis of HR may provide further information, since HR variability possesses 2 major components that have been shown to relate to different patterns of neural control to the heart.5,6 Patients with congestive heart failure (CHF) have a complex abnormality of the autonomic control to the heart7 that also affects some HR characteristics.8 These abnormalities may be determined either by a selective reduction of the vagal outflow to the heart or by a more complex abnormality. This investigation was undertaken to evaluate the components of HR variability in normal persons and patients with CHF, and their 24-hour behavior.
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U2 - 10.1016/0002-9149(91)90887-Q
DO - 10.1016/0002-9149(91)90887-Q
M3 - Article
C2 - 1809257
AN - SCOPUS:0026328225
VL - 67
SP - 1154
EP - 1158
JO - American Journal of Cardiology
JF - American Journal of Cardiology
SN - 0002-9149
IS - 13
ER -