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An arrhythmia is a problem with the rate or rhythm of your heartbeat. It means that your heart beats too quickly, too slowly, or with an irregular pattern. When the heart beats faster than normal, it is called tachycardia. When the heart beats too slowly, it is called bradycardia. The most common type of arrhythmia is atrial fibrillation, which causes an irregular and fast heart beat.

Many factors can affect your heart's rhythm, such as having had a heart attack, smoking, congenital heart defects, and stress. Some substances or medicines may also cause arrhythmias.

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Results 1 - 10 of 1,257 for irregular heartbeat
  1. Arrhythmia (National Library of Medicine)  
    An arrhythmia is a problem with the rate or rhythm of your heartbeat. It means that your heart beats ... is called bradycardia. The most common type of arrhythmia is atrial fibrillation, which causes an irregular and ...
  2. ... this page, please enable JavaScript. Common Drug for Irregular Heartbeat Tied to Worse Outcomes But study group taking ... Digox, Lanoxin) as a way to rein in irregular heartbeats. "Between 15 to 20 percent of atrial fibrillation ...
  3. ... May Beat Drug in Patients With Heart Failure, Irregular Heartbeat Catheter ablation appears to outperform Amiodarone in people ... heart failure can sometimes also develop the dangerous irregular heartbeat known as atrial fibrillation, which can raise their ...
  4. ... enable JavaScript. Tackling Obesity May Ease a Dangerous Irregular Heartbeat Keeping the weight off over time was key ... and have atrial fibrillation, a common form of irregular heartbeat: Losing weight may help restore healthy heart rhythm. ...
  5. ... enable JavaScript. Blood Thinners Overprescribed for Low-Risk Irregular Heartbeat: Study Researchers say medications can cause bleeding, and ... study contends . Atrial fibrillation -- a common form of irregular heartbeat -- can cause blood clots. Those blood clots can ...
  6. ... and Simple Snoring VIDEO: If I Had - An Irregular Heartbeat and Was Diagnosed With Long QT Syndrome- Dr. ... to Home Page VIDEO: If I Had - An Irregular Heartbeat and Was Diagnosed With Long QT Syndrome- Dr. ...
  7. Heartbeat sensations; Irregular heartbeat; Palpitations; Heart pounding or racing ... the time. Sensations representing an abnormal heart rhythm ( arrhythmia ) may be more serious. The following conditions make ...
  8. Propafenone is used to treat arrhythmia (irregular heartbeat) and to maintain a normal heart rate. Propafenone is in a class of medications called antiarrhythmics. It works by acting on the ...
  9. ... used to prevent certain types of life-threatening irregular heartbeats. Flecainide is in a class of medications called ... is surgically placed under the skin to control irregular heartbeats) and if you have or have ever had ...
  10. Children and Arrhythmia (American Heart Association)  
    ... beat faster. During sleep it slows down. An irregular heartbeat is an arrhythmia . The most common irregularity occurs ... to ask questions about specific medicines or activities. Arrhythmia • Home • About Arrhythmia • Why Arrhythmia Matters • Understand Your ...
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