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PubMed2003

[Anti-arrhythmic therapy: diagnostic possibilities of signal-averaged electrocardiography and heart rate variability].

Effects of monotherapy with class IC, II and III antiarrhythmic drugs on parameters of signal averaged (SA) ECG and heart rate variability were studied in 88 patients (mean age 45.6+/-7.8 years). Class IC drugs (ethacizine, disopyramide) caused worsening of qualitative parameters of SA ECG and appearance of ventricular late potentials. Therapy with beta-adrenoblockers, amiodarone and sotalol in patients with ventricular arrhythmias was associated with improvement of parameters of SA ECG, lowering of sympathetic and augmentation of parasympathetic activity without sings of arrhrythmogenic and negative inotropic effects. Combination of noninvasive diagnostic methods including SA ECG, temporal and spectral analysis of heart rate variability, Holter ECG monitoring can facilitate selection of appropriate antiarrhythmic therapy and control of its efficacy.

Adrenergic beta-Antagonists↗