Late ventricular potentials in left ventricular hypertrophy in patients with hypertension stage II

Aim. To evaluate diagnostic significance of high-resolution ECG in patients with blood hypertension (BH) stage II with left ventricular hypertrophy (L VH) in the presence or absence of angiographically verified atherosclerosis of the coronary arteries. Materials and methods. ECG (registration of late ventricular potentials by M. Simson and R. Haberl), echo-CG and coronaroventriculography were perform ed in 63 males with BH stage II. Results. Late ventricular potentials (LVP) were detected according to M. Si mson in 6.3% of the examinees, while according to R. Haberl in none of them . Duration of filtered complex QRS was normal in ail the patients. LVP char acteristics were not significantly different in the presence or absence of coronary atherosclerosis. Severe and moderate LVH patients differed signifi cantly by duration of low-amplitude high-frequency signals. An inverse corr elation existed between duration of low-amplitude signals in the end of fil tered complex QRS and parameters of echo-CG. Conclusion. LVP registration both by M. Simson and R. Habrel failed to prov ide additional information on substrate of the arrhythmia in hypertension s tage II patients with LVH free of clinical symptoms of tachyarrhythmia. How ever, there is an inverse correlation between duration of low-amplitude sig nals in the end of filtered complex QRS and thickness of interventricular s eptum, asymmetry index, left ventricular myocardial mass.