[Late ventricular potentials in left ventricular hypertrophy in patients with stage-II hypertension].
OBJECTIVE
To evaluate diagnostic significance of high-resolution ECG in patients with blood hypertension (BH) stage II with left ventricular hypertrophy (LVH) in the presence or absence of angiographically verified atherosclerosis of the coronary arteries.


METHODS
ECG (registration of late ventricular potentials by M. Simson and R. Haberl), echo-CG and coronaroventriculography were performed in 63 males with BH stage II.


RESULTS
Late ventricular potentials (LVP) were detected according to M. Simson in 6.3% of the examinees, while according to R. Haberl in none of them. Duration of filtered complex QRS was normal in all the patients. LVP characteristics were not significantly different in the presence or absence of coronary atherosclerosis. Severe and moderate LVH patients differed significantly by duration of low-amplitude high-frequency signals. An inverse correlation existed between duration of low-amplitude signals in the end of filtered complex QRS and parameters of echo-CG.


CONCLUSIONS
LVP registration both by M. Simson and R. Haberl failed to provide additional information on substrate of the arrhythmia in hypertension stage II patients with LVH free of clinical symptoms of tachyarrhythmia. However, there is an inverse correlation between duration of low-amplitude signals in the end of filtered complex QRS and thickness of interventricular septum, asymmetry index, left ventricular myocardial mass.
Israpilov
M M
MM
Zakharova
E V
EV
Iurenev
A P
AP
D000328:Adult; D017023:Coronary Angiography; D003324:Coronary Artery Disease / Q000175:diagnosis / Q000503:physiopathology; D004452:Echocardiography; D004562:Electrocardiography / Q000295:instrumentation / Q000379:methods; D005080:Exercise Test; D006352:Heart Ventricles / Q000000981:diagnostic imaging / Q000503:physiopathology; D006801:Humans; D006973:Hypertension / Q000175:diagnosis* / Q000503:physiopathology; D017379:Hypertrophy, Left Ventricular / Q000175:diagnosis* / Q000503:physiopathology; D008297:Male; D008564:Membrane Potentials; D008875:Middle Aged; D012307:Risk Factors; D013997:Time Factors