Definitions for "Atrial Flutter"
A heart rhythm disorder in which the upper chambers of the heart (the atria) contract faster than the lower chambers (the ventricles) in an organized, predictable pattern. (In Atrial Fibrillation the atria beat chaotically and irregularly.)
a fast irregular rhythm in the atria
atrial flutter: a rhythm disorder originating in the heart's upper chambers that can cause rapid heart rates; may be treatable with radiofrequency ablation. What is catheter ablation? Catheter ablation, also known as radiofrequency (RF) ablation: a two-step procedure used to treat rhythm problems in the top or bottom parts of the heart. First, the area in the heart that causes the abnormal heart rhythm is located with the aid of a catheter. Next, the tissue in this area is "burned," thus interrupting the pathway that conducts the impulses that cause the abnormal rhythm.