the following tachyarrhythmias respond favorably to magnesium : ( 1 ) intractable ventricular tachycardia and fibrillation , whether hypo- or normomagnesemic , ( 2 ) torsades de pointes , ( 3 ) digitalis-toxic ventricular tachyarrhythmia , ( 4 ) multifocal atrial tachycardia and ( 5 ) hypomagnesemic atrial tachyarrhythmia .
C0040479
torsades de pointes
C0042514
ventricular tachyarrhythmia