[Anti-arrhythmia and hemodynamic effects of allapinin during a course therapy in patients with circulatory failure].

The antiarrhythmic effects of allapinine were studied in 57 patients with chronic circulatory failure (CCF) and cardiac arrhythmias by employing 48-hour Holter monitoring. Allapinine was found to suppress premature ventricular contraction, group premature ventricular contraction and 'runs' of ventricular tachycardia by 82.5, 88.6, and 93.1%, respectively. The antiarrhythmic activity of the agent was more pronounced in patients with coronary heart disease, Stages I-IIA CCF and left ventricular ejection fraction greater than 40%. In addition, in Stages I-IIA CCF allapinine increased myocardial contractility and left ventricular ejection fraction, whereas in Stages IIB-III CCF it showed a slight cardiodepressive effect. Thus, when given in the course therapy in patients with CCF, allapinine has a high antiarrhythmic activity and, to a lesser extent, affects central hemodynamics.