2013 Defibrillator Ischemia 
Dr. Smith's ECG Blog
OCTOBER 28, 2013
She was found to be in ventricular fibrillation and was defibrillated 8 times without a single, even transient, conversion out of fibrillation. She was immediately intubated during continued compressions, then underwent a 9th defibrillation, which resulted in an organized rhythm at 42 minutes after initial arrest. see below).
Dr. Smith's ECG Blog
MAY 6, 2019
Followup ECG: No Change Absence of evolution is the best evidence against ischemia as the etiology. I was taught that the tell-tale sign of ischemia vs an electrical abnormality was in the hx, i.e. chest pain for the ischemia and potential syncope for brugada. Ischemia/infarction. Cardioversion/defibrillation.
Dr. Smith's ECG Blog
OCTOBER 20, 2013
She was never seen to be in ventricular fibrillation and was never defibrillated. This ECG is diagnostic of diffuse subendocardial ischemia. Medics found her apneic and pulseless, began CPR, and she was found to be in asystole. With ventilations and epinephrine, she regained a pulse. BP gradually rose.
Dr. Smith's ECG Blog
JANUARY 30, 2019
This definition was changed following an expert consensus panel in 2013 — so that at the present time, all that is needed to diagnose Brugada Syndrome is a spontaneous or induced Brugada-1 ECG pattern, without need for additional criteria.
Dr. Smith's ECG Blog
MARCH 8, 2025
It is possible there is microvascular dysfunction producing residual transmural ischemia. But this is most common when there is prolonged ischemia, and this patient had the fastest reperfusion imaginable! She was defibrillated perhaps 25 times. Defibrillation strategies for refractory ventricular fibrillation. McLeod, S.
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