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Idiopathic ventricular tachycardia in infancy and childhood

A multicenter study on clinical profile and outcome

^a Department of Pediatric Cardiology, University Children’s Hospital, Berne, Switzerland

View larger version (31K): [in a new window]   Figure 1 Age distribution of the patients included in the study. Bars indicate absolute number of patients per year at first manifestation.

View larger version (35K): [in a new window]   Figure 2 Antiarrhythmic drug treatment. Number of concomittant or consecutive antiarrhythmic agents given to the patients over the whole study period is shown.

View larger version (68K): [in a new window]   Figure 3 Effectiveness of the antiarrhythmic agents most frequently used. Bars indicate the relative success rates (hatched bars, partial effect; filled bars, complete success). Amio = amiodarone; Bbl = beta-blocker, Flec = flecainide; Prop = Propafenone; Sot = sotalol; Vera = verapamil.

View larger version (39K): [in a new window]   Figure 4 Status of the study patients at last follow-up. Sixty-three percent of patients were free of ventricular tachycardia and free of drug treatment, including the seven patients who underwent successful catheter ablation.