what is fluttering heart
Click the image to view an animation on Atrial Flutter. Atrial flutter (AFL) is a common abnormal heart rhythm, similar to atrial fibrillation, the most common abnormal heart rhythm. Both conditions are types of supraventricular (above the ventricles) tachycardia (rapid heart beat). the heart beats fast and in no regular pattern or rhythm. With AFL, the heart beats fast, but in a regular pattern. The fast, but regular pattern of AFL is what makes it special. AFL makes a very distinct sawtooth pattern on an electrocardiogram (ECG), a test used to diagnose abnormal heart rhythms.