[Parameters of spectral-temporal maps of signal averaged ECG in patients with ischemic heart disease and chronic heart failure].
Signal averaged ECG was registered in 57 patients with chronic heart failure due to ischemic heart disease and either accelerating or stable class III effort angina. Analysis of parameters of spectral-temporal maps showed that high local activity in terminal portion of ventricular and atrial complexes reflected heterogeneity of depolarization of atrial and ventricular myocardium. These changes correlated with presence of atrial and ventricular late potentials and could be used as markers of electrical instability of the myocardium.
Kabardin-Balkar State Medical University, Nalchik, Russia.
Kh Kh
KhKh
Shugushev
L S
LS
Eneeva
A B
AB
Khadzugov
D002908:Chronic Disease; D004562:Electrocardiography / Q000379:methods*; D005260:Female; D006321:Heart / Q000503:physiopathology*; D006333:Heart Failure / Q000209:etiology / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D017202:Myocardial Ischemia / Q000150:complications / Q000503:physiopathology*