is ep study same as catheterization
An electrophysiology study (EP study) is a special catheterization test in which electrode catheters (flexible, insulated wires with metal electrode tips) are inserted in to the heart in order to study the cardiac electrical system. Read more about the heart's electrical system.
If your doctor has referred you for an EP study, you will be brought to the electrophysiology laboratory (a specialized catheterization laboratory) and lie down on an examination table. You will be given local anesthesia, and possibly a mild sedative, and then electrode catheters will be inserted in to one or more blood vessels.