Heart and Vascular Care / Heart and Vascular Procedures and Tests / Implantable Cardioverter Defibrillator (ICD)

Implantable Cardioverter Defibrillator (ICD)

An implantable cardioverter defibrillator (ICD) is a small electronic device placed under the skin to monitor heart rhythm. If the heart rhythm becomes too fast and potentially dangerous, the ICD sends electrical signals that help bring it back to normal.

ICDs are advised if a person is at risk for potentially fatal ventricular arrhythmias. There may be other reasons for a doctor to advise placement of a pacemaker or ICD.

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