Clinical cardiac electrophysiology also called to as cardiac electrophysiology, arrhythmia assistances or electrophysiology is a branch of the medical specialty of cardiology and is concerned with the study and treatment of rhythm disorders of the heart. Cardiologists with scope in this area are usually mentioned to as electrophysiologists. Electrophysiologists are educated in the mechanism, function, and production of the electrical activities of the cardiac. Electrophysiologists work closely with other cardiologists and cardiac specialists to assist or guide therapy for heart rhythm contractions those are called arrhythmias. They are educated to execute interventional and surgical procedures to treat cardiac arrhythmia.