Ken Grauer, MD

MAY 31, 2024

MY Thoughts on Today’s CASE: As tempting as it might be to reach for the defibrillator on seeing the ECG shown in Figure-1 — My initial reaction was different. The April 6, 2023 post — excessive baseline artifact misdiagnosed as AFib ( instead of sinus rhythm with AV Wenckebach — as in Figure-4 in this post ). Is this VT?

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Blog AFIB Defibrillator Article 165

Dr. Smith's ECG Blog

JUNE 14, 2024

But artifact is "alive and well" — and learning to recognize it will amaze many of your colleagues ( and may serve to avoid an unnecessary defibrillation or two ). The April 6, 2023 post — excessive baseline artifact misdiagnosed as AFib ( instead of sinus rhythm with AV Wenckebach — as in Figure-4 in this post ).

Atrial Fibrillation 81

Atrial Fibrillation Tachycardia Blog Chest Pain 81

Dr. Smith's ECG Blog

SEPTEMBER 16, 2024

After resuscitation and defibrillation , there were no more episodes of TdP. Below is the patient’s 12 lead ECG following defibrillation. Of note — the QT interval of beat #5 ( blue line ) is markedly prolonged compared to the QT interval in the beginning of the tracing ( red line ). What does this ECG tell you?

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Cardiac Arrest Cardiomyopathy Arrhythmia Atrial Fibrillation 68

Dr. Smith's ECG Blog

SEPTEMBER 12, 2023

For more on my systematic approach — Check out My Comment in the May 3, 2020 post ). Treatment is by ICD ( implantable cardioverter defibrillator ). Take another LOOK at today's ECG ( which I've reproduced in Figure-1 ): Figure-1: I’ve labeled the initial tracing in today’s case. How Short is the QTc in Today's Tracing?

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Cardiac Arrest Blog Atrial Fibrillation AFIB 69

Dr. Smith's ECG Blog

JANUARY 15, 2024

Rhythm C: This telemetry strip from an older adult was initially thought to need defibrillation. The April 6, 2023 post — excessive baseline artifact misdiagnosed as AFib ( instead of sinus rhythm with AV Wenckebach — as in Figure-4 in this post ). The November 10, 2020 post — for PTA. The March 17, 2023 post — for PTA.

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Chest Pain Blog Arrhythmia Critical Care 64

Dr. Smith's ECG Blog

FEBRUARY 17, 2023

Treatment is by ICD ( implantable cardioverter defibrillator ). Assuming there was no history of cardiac arrest, unexplained syncope or AFib at an early age — cardiac risk from a “short” QTc is clearly less than for patients with frank SQTC. Males with a QTc ≤360 ms — and females with a QTc ≤370 ms are said to have a “ short ” QTc.

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Chest Pain Cardiac Arrest STEMI Arrhythmia 52