Heart disease, usually thought of as blockages in the arteries that can cause a heart attack, can describe any medical condition affecting your heart.
Enlarged heart is often a sign of a serious heart condition. Find out causes and treatments for enlarged heart.
Mitral valve prolapse occurs when the valve separating two of your heart's chambers malfunctions. The disorder usually isn't serious and often doesn't require surgical treatment.
Coping and support
Shortness of breath can be frightening. Most of the time, a heart or lung condition is the cause.
Foot pain? Headache? Sore throat? Skin rash? Use the Symptom Checker to find out what's causing your symptom.
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.
Tests and diagnosis
Treatments and drugs
A pacemaker can correct a heartbeat that's too slow. Find out the risks, results and recovery time of the procedure to implant a pacemaker.
July 31, 2014
- Overview of arrhythmias. The Merck Manual for Health Care Professionals. http://www.merckmanuals.com/professional/cardiovascular_disorders/arrhythmias_and_conduction_disorders/overview_of_arrhythmias.html?qt=arrhythmias&alt=sh. Accessed May 8, 2014.
- What is an arrhythmia? National Heart, Lung, and Blood Institute. http://www.nhlbi.nih.gov/health/health-topics/topics/arr/. Accessed May 8, 2014.
- Heart diseases and disorders. Heart Rhythm Society. http://www.hrsonline.org/Patient-Resources/Heart-Diseases-Disorders#a. May 8, 2014.
- Hands-only CPR: Learn more. American Heart Association. http://www.heart.org/HEARTORG/CPRAndECC/HandsOnlyCPR/LearnMore/Learn-More_UCM_440810_FAQ.jsp. Accessed May 8, 2014.
- Substances and heart rhythm disorders. Heart Rhythm Society. http://www.hrsonline.org/Patient-Resources/Substances-Heart-Rhythm-Disorders#axzz32CJfvIYA. Accessed May 19, 2014.
- Your heart's electrical system. National Heart, Lung, and Blood Institute. http://www.nhlbi.nih.gov/health/health-topics/topics/hhw/electrical.html. Accessed May 1, 2014.
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- Understand your risk for arrhythmia. American Heart Association. http://www.heart.org/HEARTORG/Conditions/Arrhythmia/UnderstandYourRiskforArrhythmia/Understand-Your-Risk-for-Arrhythmia_UCM_002024_Article.jsp. Accessed May 8, 2014.
- What is cardioversion? National Heart, Lung, and Blood Institute. http://www.nhlbi.nih.gov/health/health-topics/topics/crv/. Accessed May 19, 2014.
- What is catheter ablation? National Heart, Lung, and Blood Institute. http://www.nhlbi.nih.gov/health/health-topics/topics/ablation/. Accessed May 8, 2014.
- What is an implantable cardioverter defibrillator? National Heart, Lung, and Blood Institute. http://www.nhlbi.nih.gov/health/health-topics/topics/icd/. Accessed May 19, 2014.
- Prevention & treatment of arrhythmia. American Heart Association. http://www.heart.org/HEARTORG/Conditions/Arrhythmia/PreventionTreatmentofArrhythmia/Prevention-Treatment-of-Arrhythmia_UCM_002026_Article.jsp. Accessed May 19, 2014.
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- Riggin EA. Decision Support System. Mayo Clinic, Rochester, Minn. May 1, 2014.
- Mankad R (expert opinion). Mayo Clinic, Rochester, Minn. June 6, 2014.