title: Intractable ventricular tachycardia treated with massive countershock and large doses of procainamide.
mesh_terms: D000368:Aged; D004554:Electric Countershock; D006352:Heart Ventricles; D006801:Humans; D008297:Male; D009203:Myocardial Infarction / Q000150:complications; D011342:Procainamide / Q000008:administration & dosage* / Q000627:therapeutic use; D013610:Tachycardia / Q000188:drug therapy* / Q000209:etiology / Q000628:therapy*
chemical_list: D011342:Procainamide