[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.