The article presents a review of the literature data on the effect of the most common heart rhythm disorders on the body of a pregnant woman and the fetus, the features of the management of such patients, the principles of prescribing antiarrhythmic drugs. Arrhythmias occur in 20-40% of pregnant women, the most common are supraventricular or ventricular extrasystoles, life-threatening malignant arrhythmias are quite rare, and in the absence of structural changes in the myocardium, the prognosis does not affect the prognosis. Have. Due to the possibility of adverse effects on the fetus, antiarrhythmic drugs are prescribed to pregnant women according to strict indications.