所字 ZnsJiang University A. Electrophysiological basis of arrhythmias B. Electrophysiological effects and classification of antiarrhythmic drugs C. Antiarrhythmic drugs D. Proarrhythmic effects of antiarrhythmic drugsA. Electrophysiological basis of arrhythmias B. Electrophysiological effects and classification of antiarrhythmic drugs C. Antiarrhythmic drugs D. Proarrhythmic effects of antiarrhythmic drugs