Abstract
The frequency of occurrence, trigger factors, supporting mechanisms of arrhythmia and paroxysmal supra-ventricular tachyarrhythmias in non-pregnant and pregnant women were studied. The study involved 26 non-pregnant women aged 18 to 29 years (25,8+2.2 years) and 30 pregnant women from 20 to 32 years (25,6+2,8) without complaint and without structural heart disease. Holter monitoring of ECG and transesophageal electrophysiological study of the heart were performed in all patients. It is revealed that there are arrythmia and paroxysmal supra-ventricular tachycardia in pregnant women more often than in non-pregnant. Reducing the number of extrasystoles and paroxysmal supra-ventricular tachyarrhythmias occurs 6 months after birth. It is established that in non-pregnant and pregnant women there are four types of curves atrio-ventricular conduction (AVC): continuous, intermittent, continuous with the phenomenon of the "gap", intermittent with the phenomenon of the "gap". The continuous curve type of AVC is detected in non-pregnant women, in pregnant women – intermittent, in women six months after childbirth - continuous. It is proved that the electrophysiologi-cal substrate curves atrio-ventricular conduction is retrograde functioning additional channel and longitudinal dissociation of atrio-ventricular connections on the fast and slow ways.
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