Mm. Israpilov et al., Late ventricular potentials in left ventricular hypertrophy in patients with hypertension stage II, TERAPEVT AR, 71(2), 1999, pp. 64-66
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.