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Disease or Condition — Heart, Blood Vessel, and Lymphatic Disorders:
AV nodal escape rhythm

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Description

AV nodal escape rhythm is a type of cardiac arrhythmia that occurs when the sinoatrial (SA) node, the normal pacemaker of the heart, fails to generate an electrical impulse. When this happens, the atrioventricular (AV) node takes over as the pacemaker of the heart, resulting in a slower heart rate. This type of arrhythmia is usually seen in patients with heart disease or those who have had a heart attack. It is also seen in patients who have had a pacemaker implanted. The AV nodal escape rhythm is usually benign and does not require treatment. However, if the heart rate is too slow, it can cause symptoms such as dizziness, lightheadedness, and fatigue. Treatment may include medications to increase the heart rate or a pacemaker to regulate the heart rate.

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