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.
A ventriculogram is a test done during cardiac catheterization that evaluates the main pumping chamber of your heart ( left ventricle ). During a ventriculogram,your doctor injects a dye into your heart that makes the inside of your heart show up on X-ray. The images are recorded on film or on a computer. A ventriculogram can show: The movement of your heart muscle as your left ventricle ...
You can reduce your risk of having episodes of supraventricular tachycardia by avoiding certain stimulants or stressors, such as caffeine, nicotine, some medications (for example, decongestants), illegal drugs (such as methamphetamines and cocaine), excess alcohol, lack of sleep, and overeating.If fast heart rates continue, long - term medications such as beta - blockers may be used to help preven
Supraventricular Tachycardia-What Increases Your Risk
Some lifestyle factors can increase your risk of having an episode of supraventricular tachycardia, such as overuse of caffeine, nicotine, or alcohol or use of illegal drugs, such as cocaine or methamphetamine.Decongestants that contain stimulants should also be avoided, including oxymetazoline (such as Afrin and other brands) and pseudoephedrine (such as Sudafed, Actifed, and other brands). ...
Antiarrhythmics Drugs to Treat Heart Disease
WebMD explains how antiarrhythmic drugs can be used to help treat abnormal heart rhythms.
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.
Atrial Fibrillation (AFib) Myths and Facts
Did you know? If you have AFib, you can drive, have sex, and even eat ice cream. Find out if what you think is true.
Slideshows & Images
Slideshow: 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.
A Holter monitor is a type of ambulatory electrocardiogram (EKG or ECG). Ambulatory means that you are able to walk. This device can record the electrical activity of your heart while you move around to do your usual activities. You might wear it for 24 to 72 hours. The monitor is a lightweight, battery-operated tape recorder. You can wear it on a strap over your shoulder. Or you can wear it around your waist. The monitor is connected by wires to small metal discs (electrodes) taped to your chest.
Implantable cardioverter-defibrillator (ICD)
Image of an implantable cardioverter defibrillator (ICD); 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. ...
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.