When the heart experiences a cardiac rhythm disturbance, an electrophysiology study (ESP) can be done to locate the source of the irregularity. An ESP is done in an EP lab by a specialist. You will receive an IV and a sedative, then the doctor will insert a catheter that is guided through the blood vessels to the heart chambers. The catheters are attached to a device that measures the electrical impulses inside your heart.

Cardiac ablation works by scarring or destroying tissue in your heart that triggers or sustains an abnormal heart rhythm. In some cases, cardiac ablation prevents abnormal electrical signals from entering your heart and, thus, stops the arrhythmia.

Cardiac Device Implantation is a term that encompasses pacemakers for bradyarrhythmia treatment, implantable cardioverter defibrillators (ICDs) for tachyarrhythmia management, and cardiac resynchronization therapy (CRT) devices for systolic dysfunction with conduction delays.