It is also not ventricular tachycardia because the narrow QRS complexes march through. This tracing is an example of muscle tremors simulating either atrial flutter or ventricular tachycardia.

Dr. Hugh Calkins answers the question: 'Atrial Fibrillation vs. Atrial Flutter?' — -- Question: My doctor told me I sometimes have atrial fibrillation and at other times have atrial flutter. What ...

When your electrical system is working normally, the two upper chambers of the heart (atria) contract and pump blood into the two lower chambers (ventricles) in a well-coordinated way. This results in ...

Multifocal atrial tachycardia — or MAT — is a rhythm that frequently occurs in the setting of severe lung disease. MAT is characterized by three different P-wave morphologies within one 10-second ...

Atrial flutter is a disorder which causes the heart to beat out of its normal rhythm. Learn more here.

Atrial flutter and atrial fibrillation (AFib) are heart rhythm conditions that occur when the upper chambers of the heart (known as the atria) beat too quickly. Atrial flutter involves the atria ...

A 64-year-old man with a history of typical atrial flutter underwent a standard ablation procedure during atrial flutter to create bidirectional block across the cavotricuspid isthmus. When ...

It’s easy to confuse atrial fibrillation (AFib) with what’s called supraventricular tachycardia (SVT). After all, both have to do with your heart rate and both start in the upper chambers of your ...

There are very few things in life that will keep Chargers head coach Jim Harbaugh off the football field. His heart no longer working properly is one of those reasons — literally. Harbaugh was the ...