Not all atrial flutters demonstrate the typical "sawtooth" pattern. During the times of lesser conduction on this ECG, the flutter waves are more apparent. The atrial rate is organized at a rate of ...

Atrial flutter (AFL) is a type of abnormal heart rhythm, or arrhythmia. It occurs when the upper chambers of your heart beat too fast, causing the bottom chambers to also beat faster than normal.

Narrow QRS complexes occur regularly. This tracing suggests either atrial flutter or ventricular tachycardia. It is not atrial flutter, however. If it were, the QRS complexes occurring regularly would ...

Multifocal atrial tachycardia Old inferior myocardial infarction Premature supraventricular beat with aberrancy (left bundle branch block pattern). Multifocal atrial tachycardia (MAT) occurs when ...