Implantable Cardioverter Defibrillators (ICD)
These devices have been very successful in preventing sudden cardiac death in high-risk patients. Like a pacemaker, ICDs are implanted under the skin. Wires called leads run from the ICD to the heart, and the device monitors the heart to detect any abnormal rhythm. If a dangerous arrhythmia is detected, the ICD delivers an electrical shock to restore the heart’s normal rhythm and prevent sudden cardiac death. The ICD can also act like a pacemaker if the heart is beating too slowly.