O.S. Sychov, L.A. Shabilyanova, M.Z. Cherednichenko, A.I. Frolov, Ye.V. Mogylnytskyі, S.V. LyzohubChange of heart rate variability at patients with paroxysmal and persistent forms of atrial fibrillation/atrial flutter on background of hypertension, chronic ischemic heart disease and heart failure.

The purpose of our research was to study indices of heart rate variability in patients with paroxysmal and persistent forms of atrial fibrillation/atrial flutter on background of hypertension, chronic ischemic heart disease and heart failure. 167 patients (mean age 53.8±0.9 years) have been included into research: 113 patients with paroxysmal and persistent forms of atrial fibrillation/atrial flutter without significant structural changes of myocardium, 16 patients with hypertension and without atrial fibrillation / atrial flutter, 18 patients with chronic ischemic heart disease and without atrial fibrillation/atrial flutter and 20 patients of the control group (rather healthy young men, without any cardiac pathology). Atrial fibrillation/atrial flutter without presence of cardiac pathology is the factor worsening time and spectral indices of heart rate variability. In all three groups of patients with atrial fibrillation/atrial flutter without cardiac pathology, SDNNi, LF and HF decreased.

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