Atrial flutter differential diagnosis
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Raviteja Guddeti, M.B.B.S. [2]
Differentiating Atrial Flutter from other Diseases
Atrial flutter should be differentiated from the following rhythm disorders:
- Atrial fibrillation - ECG shows irregularly irregular rhythm with uncoordinated atrial activation, absent P waves, atrial rate of 400-700 beats per minute and with rapidly oscillating, fibrillatory waves that vary in amplitude, shape, and timing
- Multifocal atrial tachycardia - organized and discrete P waves with at least 3 different morphologies is the distinguishing character with variable PP intervals, RR intervals, and PR intervals
- Atrial tachycardia with AV block
- Supraventricular tachycardia
- Wide complex tachycardia