How is atrial fibrillation (AF) differentiated from atrial flutter (AFL)?

Updated: Nov 18, 2019
  • Author: Lawrence Rosenthal, MD, PhD, FACC, FHRS; Chief Editor: Jeffrey N Rottman, MD  more...
  • Print

Coarse atrial fibrillation may mimic atrial flutter over limited electrocardiogram (ECG) strips. Prolonged recordings will uncover an irregular rate and variation in P wave morphology (as compared to a regular rate and P wave morphology with atrial flutter). The distinction between atrial flutter and atrial tachycardia is generally arbitrarily based on the atrial rate, and does not mechanistically distinguish these rhythms.

Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!