[Ventricular paroxysmal tachycardia caused by extrasystolic beats].
D005117:Cardiac Complexes, Premature; D006801:Humans; D013610:Tachycardia; D013614:Tachycardia, Paroxysmal; D017180:Tachycardia, Ventricular
EXTRASYSTOLE; TACHYCARDIA, PAROXYSMAL