An arrhythmia is an irregular heart rhythm. An arrhythmia can occur with a normal heart rate or with fast or slow heart rates. Causes may include coronary artery disease, heart attack, heart surgery, blood imbalances, and more. There are many types of arrhythmias including atrial fibrillation and atrial flutter. Treatments include medications and lifestyle changes, cardioversion, pacemakers, ICDs, and surgery. Follow the links below to find WebMD's comprehensive coverage about how arrhythmia is caused, what it looks like, how to treat it, and much more.
Cardioversion for Atrial Fibrillation
Cardioversion is a medical procedure used to treat atrial fibrillation (AFib) and other types of irregular heartbeat, or arrhythmia. Learn about the difference between chemical and electrical cardioversion, how electrical cardioversion differs from defibrillation, possible risks, and recovery time.
Abnormal Heart Rhythms (Arrhythmias)
WebMD explains arrythmias, or abnormal heart rhythms, including causes, symptoms, treatment, and more.
Cardiac Ablation for Irregular Heartbeat and AFib
Cardiac ablation is a medical procedure for treating arrhythmia, irregular heartbeat, and atrial fibrillation (AFib). Learn more about the types of ablation, the procedures, possible risks and complications, and the recovery process.
Abnormal Heart Rhythms and Implantable Cardioverter Defibrillators (ICD)
Abnormal heart rhythms sometimes require the use of an ICD or implantable cardioverter defibrillator. WebMD explains how the device works.
5 Heart Rate Myths Debunked
Myths and facts about heart rates, including what an erratic heart rate means and the link between your pulse and stress.
Medication to Control Your Heart's Rate and Rhythm
Different kinds of medication can treat the irregular heartbeat of AFib, by controlling the rate or the rhythm.
Slideshows & Images
Why Am I Having Heart Palpitations?
Why does your heart race or skip a beat? Learn what causes heart palpitations and when to see your doctor.
Slideshow: A Visual Guide to Atrial Fibrillation
See inside a heart during atrial fibrillation. Pictures show the causes, tests, and treatments for this common heart rhythm problem through illustrations and photos.
Slideshow: A Visual Guide to Heart Disease
WebMD provides a visual overview of heart disease, including symptoms to watch for, diagnostic tests, treatments, and prevention strategies.
Slideshow: 20 Foods That Can Save Your Heart
The top foods for heart health go beyond cholesterol busters to edamame, nuts, salmon, even coffee. Cooking tips and pictures show how to work new foods into your diet.