Arrhythmia: An abnormal heart rhythm that may result in symptoms of palpitations, chest pain, dizziness, passing out, shortness of breath, and fatigue. Some arrhythmias can lead to strokes, heart attacks, and even death. See doctor, cardiologist, and/or heart rhythm (EP) specialist if concerned. Call 911 if chest pain, passing out, shortness of breath, or severe dizziness.
Answered 10/31/2014
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