Increased sympathetic activity in coronary artery disease shifts centre frequency of heart rate variability spectra leftward (CROSBI ID 559937)
Prilog sa skupa u zborniku | izvorni znanstveni rad
Podaci o odgovornosti
Milicevic, Goran ; Udiljak, Nikola ; Gavranovic, Zeljka ; Urek, Roman ; Strinic, Dean ; Bakula, Miro
engleski
Increased sympathetic activity in coronary artery disease shifts centre frequency of heart rate variability spectra leftward
Long-term measured ratio between low and high frequency (LF/HF ratio) components of heart rate variability (HRV) spectra fails to describe autonomic effect in most of cardiac patients. It seems that an increase in sympathetic activity decreases frequency of autonomic oscillations and shifts the centre frequency of HRV spectra toward very low frequencies. To test that hypothesis, LF/HF ratio was compared with ratio between very low and low frequency (VLF/LF ratio) in 690 patients with coronary artery disease. Patients with lower overall HRV and weaker vagal activity had lower LF/HF ratio and higher VLF/LF ratio. As a rule, the lower the HRV, the higher the VLF/LF ratio and the lower LF/HF ratio (p< 0.01), thus proving that the increase in sympathetic activity shifts the centre frequency of spectral components leftward.
coronary artery disease; heart rate variability
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o prilogu
401-404.
2009.
objavljeno
Podaci o matičnoj publikaciji
New approaches in coronary artery disease. Proceedings of the 8th international congress on coronary artery disease October 11 - 14, 2009, Prague, Czech Republic
Lewis, Basil S. ; Widimsky, Petr ; Flugelman Moshe Y. ; Halon David A.
Prag: Medimond International Proceedings
978-88-7587-526-8
Podaci o skupu
8th International Congress on Coronary Artery Disease, ICCAD 2009
poster
11.10.2009-14.10.2009
Prag, Češka Republika