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.

The differential diagnosis of an irregularly irregular rhythm includes atrial fibrillation, atrial flutter with variable conduction and multifocal atrial tachycardia or wandering atrial pacemaker.

Atrial flutter is similar to another type of arrhythmia called atrial fibrillation (AFib). Both start in the upper chambers of the heart and cause a fast heartbeat and increase your risk of stroke.

But there are very important differences between atrial fibrillation and atrial flutter -- both in terms of the precise mechanism of the arrhythmia, but also how they're treated.

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

Differences While atrial flutter and atrial fibrillation are each conditions that involve the atria (the heart's upper chambers), there are some differences between the two conditions.

A 64-year-old male presents 2 weeks following successful atrial flutter ablation and dual-chamber pacemaker implantation complaining of fatigue, but had no palpitations. What is the diagnosis?

Jim Harbaugh heart condition Harbaugh revealed in Week 6 that he is dealing with atrial flutter, a type of heart rhythm disorder. It can cause the heart to beat at an abnormally high rate.

Dr. Glenn Brammer, a board-certified cardiologist and electrophysiologist, performed the first atrial flutter ablation in Augusta Health’s new Electrophysiology Lab on Oct. 24.