title: [Regulation of tonus of the autonomic nervous system in patients with frequently relapsing atrial fibrillation].
abstract: An evaluation was carried out of variability of the heart's rhythm in 269 patients with ischemic heart disease and/or hypertensive disease, their age ranging between 43 to 82 years, complicated by frequently relapsing atrial fibrillation. It is shown that in those patients presenting with frequent recurrences of arrhythmia over the course of a 24-hour period, there comes to be a considerable decline in the power of total variability of cardiac rhythm, and all spectral components and a shift in the sympathetic/parasympathetic system balance in favour of the sympathetic one. Analyzed the study were particular features of regulation of tension of the vegetative nervous system in different clinical forms of atrial fibrillation. Patients with frequently recurring atrial fibrillation have been shown to constitute rather a miscellaneous group as to patterns of the cardiac rhythm variability, which fact is to be taken account of in conducting prophylactic antiarrhythmic therapy of recurrencies of atrial fibrillation.
authors.forename: V P
authors.initials: VP
authors.lastname: Ivanov
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001281:Atrial Fibrillation / Q000209:etiology / Q000503:physiopathology*; D001341:Autonomic Nervous System / Q000502:physiology*; D005260:Female; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D006973:Hypertension / Q000150:complications; D008297:Male; D008875:Middle Aged; D017202:Myocardial Ischemia / Q000150:complications; D012008:Recurrence