a 51 year old woman with arrhythmogenic right ventricular dysplasia had two types of ventricular tachycardia -- ( a ) a regular and sustained tachycardia and with normal frontal plane axis on electrocardiography and ( b ) an irregular non-sustained tachycardia with a leftward frontal plane axis .
C0042514
ventricular tachycardia
C0039231
tachycardia