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Types

Problems Involving Heart Rhythm

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Arrhythmias

Overview of Pacemakers and Implantable Cardioverter Defibrillators (ICDs)

Living With a Pacemaker or Implantable Cardioverter Defibrillator (ICD)

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When your heart rate is slow, less than 60 beats a minute, it is called bradycardia. Bradycardia can be normal, caused by medicines, or a sign of a disease. It is a concern when your heart rate is very low, or you have symptoms.

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Atrial Fibrillation

Atrial fibrillation is a condition in which the heart beats in an irregular pattern. It is caused by a problem in the heart's electrical pathways. It can be a sign of heart disease or other health problems that affect the heart.