What is an ICD?

An implantable cardioverter defibrillator (ICD) is a small battery-operated device. It is placed in the chest to monitors the heart’s rhythm. If the heart begins to beat in a disorganized way, the device provides a shock. The shock is given to restore a normal rhythm. Automatic cardioverter defibrillator implantation is the surgical insertion of an (ICD).

These days, ICD's often combine the function of a pacemaker and an external defibrillator. A pacemaker also monitors the heart rhythm. It helps the heart get back to a normal rhythm if it beats too slow or too fast. 

Surgical implantation of an internal cardiac device is a common procedure that is performed in many hospitals throughout the United States.