Three Key Features of Atrial Flutter on ECG
Disease description:
My grandmother has long suffered from angina pectoris. After being admitted to the hospital, an electrocardiogram (ECG) was performed immediately. I would like to know: What are the three major ECG features of atrial flutter?
Doctor's answer (2)
Dr. Liu Shilei
The characteristic ECG features of atrial flutter primarily include rapid, regular “F” waves, typically occurring at a rate of approximately 300 beats per minute. On the ECG, these F waves most commonly appear as bidirectional, sawtooth-shaped waves. Importantly, there is no isoelectric baseline between F waves; instead, they exhibit a “head-to-tail” continuity. During atrial flutter, each rapid F wave is associated with a regularly occurring QRS complex, and the atrioventricular (AV) conduction ratio is typically 2:1 or 4:1.
