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Arrhythmia? Ischemia? Both? Electricity, drugs, lytics, cath lab? You decide.

Dr. Smith's ECG Blog

The rhythm differential for narrow, regular, and tachycardic is sinus rhythm, SVT (encompassing AVNRT, AVRT, atrial tach, etc), and atrial flutter (another supraventricular rhythm which is usually considered separately from SVTs). Therefore this patient is either in some form of SVT or atrial flutter. If so, why?

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ECG Blog #368 — Why So Fast?

Ken Grauer, MD

P utting I t A ll T ogether : — The Rhythm in Figure-1 What we have just described is the following: A regular WCT ( = W ide- C omplex T achycardia ) at a rate very close to 300/minute — without clear sign of atrial activity. Among the fast Supraventricular Rhythms: This is not AFib — because the rhythm is regular.

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