Arrhythmia Atrial Flutter Dysrhythmia 
Dr. Smith's ECG Blog
DECEMBER 24, 2023
Atrial flutter with 2:1 conduction. The atrial flutter rate is approximately 200 bpm, with 2:1 AV conduction resulting in ventricular rate almost exactly 100 bpm. Further history revealed she had new onset atrial flutter soon after her aortic surgery, and was put on flecainide approximately 1 month ago.
Dr. Smith's ECG Blog
OCTOBER 25, 2022
The differential of a regular narrow QRS tachycardia is sinus tachycardia, SVT, and atrial flutter with regular conduction. There are no P waves preceding the QRS complexes, and no clear flutter waves. But adenosine only lasts for seconds, and if the dysrhythmia recurs, then the adenosine is gone. Adenosine worked.
Dr. Smith's ECG Blog
JANUARY 5, 2020
Atrial dysrhythmias, and atrial fi brillation in particular, are frequently misdiagnosed by computer algorithms and then by the physician who overreads them. How can you avoid overlooking this arrhythmia? The reasons for overlooking this arrhythmia are simple: True MAT is not a common rhythm. GET a 12-lead!
Dr. Smith's ECG Blog
SEPTEMBER 7, 2020
The Differential Diagnosis is: SVT with aberrancy(#) [AVNRT vs. WPW (also called AVRT*)] Atrial flutter with 1:1 conduction, with aberrancy VT coming from the anterior fascicle ( fascicular VT )@ *AVRT = AV Reciprocating Tachycardia (Tachycardic loop that uses both the AV node and an accessory pathway.
Dr. Smith's ECG Blog
MARCH 6, 2020
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?
Dr. Smith's ECG Blog
APRIL 8, 2015
Finally, much of this correlates well with The new Canadian Syncope Arrhythmia Risk Score , just published in 2016, results of which are given below in the Annotated Bibliography. The most recent and probably best study is this: Canadian Syncope Arrhythmia Risk Score. Vasovagal syncope is generally benign. Thiruganasambandamoorthy, V.,
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