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Atrial Flutter
Atrial Flutter is an abnormal heart rhythm that occurs in the atria of the heart. When it first occurs, it is usually associated with a fast heart rate or tachycardia (230–380 beats per minute). While this rhythm occurs most often in individuals with Cardiovascular Disease (eg: hypertension, coronary artery disease, and cardiomyopathy), it may occur spontaneously in people with otherwise normal hearts. It is typically not a stable rhythm, and frequently degenerates into Atrial Fibrillation. However, it does can persist for months to years.