question: Hello Doctor,  How are you doing?. On 6th June my father was admitted in MMM hospital for RFA treatment referred by Apollo Hospital Where he was underwent treatment for ANGIOGRAM.One of my office colleague referred Dr.Ulhas Pandurangi for RFA Test. After He had gone through patient history of heart palpitation, My father was advised to undergo EPS Study + 3D mapping which was performed successfully by him by next day and discharged on 8th June 2011. But He is often complaining of having chest pain. Currently he is taking Seloken xl .25 mg that had prescribed by the Dr.1)Can you please explain me what could be cause of this pain? 2)Is it due EPS study?. If yes, then how long will it take to cure completely?.