
A doctor places an implantable cardioverter-defibrillator (also called an ICD) in the chest. The ICD has one or two wires called leads that connect to the heart through a vein. The ICD checks the heartbeat for an abnormal rhythm. If the ICD senses an abnormal heart rhythm, it sends out either electrical pulses or a shock to fix it.
| By | Healthwise Staff |
| Primary Medical Reviewer | Rakesh K. Pai, MD, FACC - Cardiology, Electrophysiology |
| Specialist Medical Reviewer | Stephen Fort, MD, MRCP, FRCPC - Interventional Cardiology |
| Last Revised | September 12, 2012 |