ECG
- On the ECG, you will classically observe a saw-tooth shaped P wave, negative in leads II, Ill, and aVF, which indicates the retrograde conduction up the atrial septum, consistent with counter-clockwise (“typical”) flutter.
Tricks to help 👀 Flutter Waves
- Inverting a tracing of suspected atrial flutter can help in its identification.
- Vagal maneuvers (or adenosine) → reveals flutter waves
