Safety and Efficacy of Catheter Ablation of Idiopathic Ventricular Arrhythmias Arising From Cardiac Outflow Tracts

Ventricular arrhythmias arising from cardiac outflow tract affect quality of life and can cause decrease in left ventricular ejection fraction. Drugs used for treating those arrhytmias may be ineffective or may have side effects. Radiofrequency catheter ablation can be used safely for treatment of outflow tract arrhythmias. There are different sites where those ventricular arrhythmias may originates, each site has different electrocardiographic characteristics, different procedural success rates and challenges in localization and ablation.