Atypical atrial flutter originates from the left atrium or areas in the right atrium, such as surgical scars, and has a variable appearance on ECG in regards to the flutter waves.

Atrial flutter creates a very specific “sawtooth” pattern on a diagnostic test known as an electrocardiogram (EKG). Electrical cardioversion: This procedure uses an electrical shock to reset ...

However, AFL itself is easily recognizable by its classic sawtooth pattern on an electrocardiogram (ECG ... being offered as a first-line treatment for atrial flutter. Cardioversion uses ...