Author/Editor		Klemenc, M; Zimic, N; Kranjec, I; Jezeršek, P
Title		Activity of the autonomic nervous system and diastolic disfunction of the left ventricle in hypertensive patients
Type		članek
Source		Med Biol Eng Comput
Vol. and No.		Letnik 34, št. Suppl 1
Publication year		1996
Volume		str. 385-6
Language		eng
Abstract		In our study we tried to elucidate the relationship between the changing compliance of the left ventricle and the tone of the autonomic nervous system (ANS). ANS activity was determined by spectral analysis (SA) of R-R interval variability (FFT). The 2-D guided M-mode echocardiogram was performed in order to measure dimensions of the left ventricle. Pulsed wave Doppler was used to obtain peak velocity flow through the mitral valve (i.e. E and A wave). SA showed a significantly lower value of HF/LF area ratio in hpertensive patients (p=0.01). 26.2% of hypertensive patients had a significantly lower value of this ratio, 39.7% had significantly lower value of E/A ratio, and 12.5% had at the same time significantly lower E/A and HF/LF.
Descriptors		VENTRICULAR DYSFUNCTION, LEFT HYPERTENSION AUTONOMIC NERVOUS SYSTEM DIASTOLE ELECTROCARDIOGRAPHY HEART RATE FOURIER ANALYSIS ECHOCARDIOGRAPHY, DOPPLER, PULSED HEART VENTRICLE