title: Torsade de Pointes--2 case reports.
mesh_terms: D000368:Aged; D002304:Cardiac Pacing, Artificial; D005260:Female; D006801:Humans; D007545:Isoproterenol / Q000627:therapeutic use*; D008875:Middle Aged; D013610:Tachycardia / Q000188:drug therapy / Q000628:therapy*
chemical_list: D007545:Isoproterenol