Disorders in the heart's electrical system can lead to arrhythmias, or an abnormal heart rhythm. Some arrhythmias can be life threatening and require an electrical shock to return the heart to a normal rhythm. Patients who are at risk for sudden cardiac death may require an implantable cardiac defibrillator or ICD, which can deliver a life-saving shock if the heart starts to beat too fast or in a chaotic pattern.
An implantable cardioverter defibrillator (ICD) is a small electronic device used to continuously keep track of and help regulate potentially fast and life-threatening electrical problems with the heart.
Most patients with an ICD can live a normal, active life. Patients do need to be aware of the types of shocks an ICD delivers and what to do if they experience a shock. There are also some precautions patients should take in order to reduce complications.
