Remove AFIB Remove Atrial Flutter Remove Circulation
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Syncope while on a treadmill

Dr. Smith's ECG Blog

To me, it was clearly atrial flutter with 1:1 conduction. The rate of 280 is just right for atrial flutter. The waves look like atrial flutter waves, NOT like a wide ventricular complex. Reverted to atrial fibrillation with RVR while in the hospital 3 times and needed cardioversion.

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New Onset Heart Failure and Frequent Prolonged SVT. What is it? Management?

Dr. Smith's ECG Blog

There is atrial activity before every QRS, but that activity has negative polarity, so it is not sinus rhythm. There are clearly no flutter waves, so it is not atrial flutter (a "macro-reentrant" atrial tachycardia) Is it AVNRT originating at the superior pole of the AV node, resulting in a retrograde P-wave before the QRS?