ECG Library


Beginner ECG 2

    Atrial fibrillation with an uncontrolled ventricular response

    There are three common heart rhythm disorders that cause an irregularly irregular rhythm:

    1. Atrial fibrillation
    2. Atrial flutter with variable conduction
    3. Multifocal atrial tachycardia, or MAT

    With atrial fibrillation, no discrete P waves can be seen; however, coarse “fibrillitory waves” are at times present. In atrial flutter, a “sawtooth” pattern is seen. In MAT, at least three distinct P wave morphologies are present.