[Nibentan -- a drug for pharmacological cardioversion of persistent atrial fibrillation].

Aim: To assess efficacy of a potassium channel blocker nibentan for pharmacological cardioversion of persistent atrial fibrillation. Method. Nibentan (1% solution) was infused intravenously after 3 weeks of warfarin pretreatment to 31 patients with duration of atrial fibrillation from 4 weeks to 15 months.

[Heart rate control with nebivolol in patients with tachysystolic atrial fibrillation].

Aim: To find out whether selective beta-adrenoblocker nebivolol can be used for heart rate (HR) control in patients with chronic tachysystolic atrial fibrillation.

Material: Patients (n=20, 7 men, 13 women, age 47-79 years) with ischemic heart disease and permanent atrial fibrillation (duration 2.5 months - 11 years) admitted to a specialized clinic for diagnosis and treatment of cardiac arrhythmias.

[Electrophysiological criteria for efficacy of different antiarrhythmics classes in patients with paroxysmal reciprocal atrioventricular nodal tachycardia].

Clinical and electrophysiological studies of 510 patients with different paroxysmal reciprocal atrioventricular nodal tachycardias identified criteria for resistance of paroxysmal nodal tachycardia. Examination of changes in major electrophysiological parameters due to different antiarrhythmics established the specific features of their electrophysiological action and thereof criteria for the efficacy of antiarrhythmic therapy.

[Criteria for a pathogenetic approach to antiarrhythmic therapy in paroxysmal supraventricular reciprocal tachycardia].

An electrophysiological study using programmed transesophageal atrial pacing was performed in 106 patients with abnormalities in the myocardial conduction system, of whom 102 suffered from paroxysmal supraventricular reciprocal tachycardia and/or paroxysmal atrial fibrillation. The electrophysiological properties of the myocardial conduction system were demonstrated to be labile. The factors determining the frequency and length of palpitations were outlined.