An implantable cardioverter-defibrillator (ICD) is a small device placed under the skin that monitors heart rhythm and can deliver life-saving electrical shocks if dangerous arrhythmias occur.
These devices are used for patients who are at risk of sudden cardiac arrest due to serious heart rhythm disorders.
The device continuously monitors heart rhythm. If it detects a life-threatening rhythm such as ventricular tachycardia or ventricular fibrillation, it delivers a controlled shock to restore a normal heartbeat.
Implantable defibrillators provide an important safeguard for patients at risk of dangerous heart rhythm disturbances.
