Radiofrequency ablation (RFA) study is a powerful test to diagnose arrhythmias accurately and help treating them effectively.Unlike many diseases of the heart, arrhythmias are normally hidden or be dormant.They come out and strike only when conditions are favorable for them.Electrophysiology (EP) and RFA study uses advanced computed technology to bring the arrhythmia out of its dormancy and shows how to get rid of it.Radiofrequency ablation is often used in conjunction with implantable cardioverter-defibrillator (ICD) therapy in the presence of recurrent ventricular tachycardia (VT) episodes to reduce the frequency of required ICD therapies.It is something like charming a dangerous snake out of its hole and getting rid of it so that there is no chance of it doing harm at all.