In-depth

Causes

Heart disease

Heart disease, usually thought of as blockages in the arteries that can cause a heart attack, can describe any medical condition affecting your heart.

Long QT syndrome

Complications

Enlarged heart

Enlarged heart is often a sign of a serious heart condition. Find out causes and treatments for enlarged heart.

Heart failure

Sudden death in young people

Sudden death in young people is rare, but those at risk can take precautions. Find out more about the risk factors, causes and treatments.

Ventricular fibrillation

Risk factors

Cardiomyopathy

Symptoms

Tachycardia

Tachycardia, a rapid heart rate, is caused by an abnormality in your heart's electrical impulses. Tachycardia can cause serious complications, including sudden cardiac arrest.

June 14, 2016
References
  1. Implantable cardioverter defibrillator. National Heart, Lung, and Blood Institute. http://www.nhlbi.nih.gov/health/dci/Diseases/icd/icd_all.html. Accessed April 4, 2016.
  2. Ganz LI. General principles of the implantable cardioverter-defibrillator. http://www.uptodate.com/home. Accessed April 4, 2016.
  3. Epstein AE, et al. 2012 ACC/AHA/HRS focused update incorporated into the ACC/AHA/HRS 2008 guidelines for device-based therapy of cardiac rhythm abnormalities. Circulation. 2013;127:e283.
  4. Devices that may interfere with implantable cardioverter defibrillators (ICDs). American Heart Association. http://www.heart.org/HEARTORG/Conditions/Arrhythmia/PreventionTreatmentofArrhythmia/Devices-that-may-Interfere-with-Implantable-Cardioverter-Defibrillators-ICDs_UCM_448464_Article.jsp. Accessed April 4, 2016.
  5. Living with your implantable cardioverter defibrillator (ICD). http://www.heart.org/HEARTORG/Conditions/Arrhythmia/PreventionTreatmentofArrhythmia/Living-With-Your-Implantable-Cardioverter-Defibrillator-ICD_UCM_448462_Article.jsp. American Heart Association. Accessed April 4, 2016.
  6. AskMayoExpert. Implanted cardiac devices. Rochester, Minn.: Mayo Foundation for Medical Education and Research; 2015.
  7. Ganz LI. Implantable cardioverter-defibrillators: Complications. http://www.uptodate.com/home. Accessed April 4, 2016.
  8. Knight BP. Patient information: Implantable cardioverter-defibrillators (beyond the basics). http://www.uptodate.com/home. Accessed April 4, 2016.