As a descriptive word, Electrophysiology sounds over-complicated.  When introducing myself to patients, I almost always refer to myself as a heart-rhythm specialist. Other doctors call us “EPs.” EP–a much easier name–is a branch of cardiology that deals with the diagnosis and treatment of heart rhythm disorders. We do an extra year (or two) of training after the standard cardiology fellowship. Electrophysiology (EP), or heart rhythm management, is the study, diagnosis, and treatment of the abnormalities (arrhythmias) of the electrical conduction of the heart. An electrophysiologist is a cardiologist who specializes in the diagnosis and treatments these abnormalities. The electrophysiologists at the CHI Health Heart Institute specialize in treating arrhythmias such as atrial fibrillation, atrial flutter, ventricular tachycardia and many others with the latest technology, procedures and devices. They work collaboratively with our general cardiologists and interventional cardiologists as well as cardiovascular surgeons to provide high-quality patient centered care for a wide variety of conditions including atrial fibrillation.