Cardiac Resynchronization Therapy Devices (CRT)

Cardiac Resynchronization Therapy Devices (CRT) are cardiac electrophysiology (EP) systems that include a small electronic device that is surgically implanted into a pocket of skin to help both ventricles contract together. They are also called biventricular pacemakers. These systems can be used for pacing only, or can include a built-in defibrillator.