[Influence of amiodarone on the spectral analysis of heart rate variability in patients with atrial fibrillation elderly and senile age.].

Atrial fibrillation is more common among elderly patients. Number of comorbidities, such as heart failure, coronary heart disease, disorders of the conduction system of the heart increases with age. Atrial fibrillation is a health problem. In developed countries, there is a high prevalence of the disease. The disease affects more than 33 million people worldwide. Spectral analysis of heart rate variability can be successfully used to evaluate the effectiveness of therapy. The use of this method gives an idea of the role of the autonomic nervous system in the regulation of chronotropic function of the heart. These data help to define conditions of manifestation of efficiency of antiarrhythmic drugs. In this study, spectral analysis were studied in patients with different forms of atrial fibrillation. The effect of amiodarone class III antiarrhythmic drug were studied this study. It is shown that the structure of spectrum of heart rate variability in patients with newly diagnosed atrial fibrillation differs significantly from that in patients with disease duration from 6 months to several years on the background of amiodarone.