Ken Grauer, MD
OCTOBER 10, 2024
I say this for the simple reason that to pick any of the above 4 choices — is to imply with 100% certainty that you know the answer ( or, as is implied in the title of today’s Blog post — this would be premature closure). ECG Blog #240 — The regular SVT. ECG Blog #229 — Why is AFlutter so commonly overlooked? s in Figure-2 ).
Ken Grauer, MD
DECEMBER 23, 2023
By the P s, Q s, 3 R Approach ( See ECG Blog #185 ): The rhythm is fast and QRS complexes are R egular. PEARL # 4: As emphasized in ECG Blog #204 , in which I review derivation of the bundle branch blocks — RBBB is a terminal conduction delay. ECG Blog #185 — Reviews the P s, Q s, 3 R Approach to Rhythm Interpretation.
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.
Ken Grauer, MD
MARCH 12, 2023
NOTE: The ECG in Figure-1 has been recorded at the usual 25mm/second speed — but with the Cabrera format ( Please see my Editorial Note near the top of the page in ECG Blog #365 for review of the basics of this recording system ). PEARL # 3: Atrial Flutter with 1:1 AV conduction is rare! ECG Blog #287 — More on AFlutter.
Ken Grauer, MD
MAY 12, 2023
As discussed in detail in ECG Blog #240 — the term, “SVT” — refers to any supraventricular rhythm (ie, with origin at or above the AV node ) that manifests a rate of ≥100/minute. By this definition, a variety of rhythms may qualify as “SVTs” — including sinus tachycardia, atrial flutter or fibrillation, MAT, AVRT/AVNRT, among others.
Ken Grauer, MD
AUGUST 18, 2023
As always — I like to start by focusing on the long lead rhythm strip — which shows a bigeminal rhythm — in that there are repetitive 2-beat groups ( See ECG Blog #232 for review of the concept of “bigeminy” ). PEARL # 1: As discussed in ECG Blog #232 — it helps to consider the differential diagnosis of a bigeminal rhythm.
Ken Grauer, MD
MARCH 23, 2023
With experience, applying the P s, Q s, 3 R Approach ( See ECG Blog #185 ) — to formulate the above steps in our initial assessment of the rhythm in Figure-1 can ( should ) be completed in less than 30 seconds! These are reviewed in ECG Blog #343. I reviewed the concept of Echo beats in ECG Blog #239.
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