Hi, your father is having a rhythm disturbance, an arrhythmia and doctors are trying to correct that. This may not be picked up by ECG,2D-echo and
angiography. During the EPS, the electrical behavior of the heart that is responsible for controlling your heartbeat is recorded by placing conducting wires. Radiofrequency ablation, RFA, is a treatment that uses electrical energy to destroy tissues in the heart that are causing rhythm disturbances. This should help to restore his rhythm.