[Differentiated treatment and prevention of arrhythmias in myocardial infarct].

Monitoring and electrocardiographic observations were conducted in 900 patients during the acute and subacute periods of myocardial infarction. It was found that without preventive therapy arrhythmias develop in 85% of the patients, and with preventive antiarrhythmic treatment--in 75.5%. A combination of two and more types of arrhythmias was encountered in 42% of the cases. In the presence of routine therapy for myocardial infarction individual antiarrhythmic drugs displayed different efficacy. In supraventricular forms of arrhythmias the most effective drugs are Chinidin and Chinidin-Durules, Inderal and Hiluritmal, in ventricular forms--Lidokaine, Chinidin, Novocainamide, Inderal, Hiluritmal. A combined employment of these drugs against the background of potassium and magnesium salts administration, Inosie-F, water-soluble camphor and Cocarboxylase promoted the restoration of a normal sinus rhythm in 85% of the cases. When the drug therapy produced no antiarrhythmic effect and ventricular fibrillation developed, electroimpulse therapy was employed. In persistent atrioventricular blocks only cardiostimulation was effective.