Recurrent ventricular tachycardia.
D000889:Anti-Arrhythmia Agents / Q000627:therapeutic use; D004554:Electric Countershock; D006352:Heart Ventricles; D006801:Humans; D008297:Male; D008614:Meperidine / Q000627:therapeutic use; D008875:Middle Aged; D011342:Procainamide / Q000627:therapeutic use; D013610:Tachycardia / Q000188:drug therapy / Q000517:prevention & control / Q000628:therapy*
D000889:Anti-Arrhythmia Agents; D008614:Meperidine; D011342:Procainamide