Cardiogenic Shock Ischemia Tachycardia 
Dr. Smith's ECG Blog
FEBRUARY 16, 2020
A previously healthy 53 yo woman was transferred to a receiving hospital in cardiogenic shock. Here was the ECG: There is sinus tachycardia. Our chief of cardiology, Gautam Shroff, interprets it differently and thinks this is indeed ischemia. This was sent by a reader. and K was normal. This is "Shark Fin" morphology.
Dr. Smith's ECG Blog
SEPTEMBER 5, 2024
Sinus tachycardia has many potential causes. This is especially true for the elderly patient with sinus tachycardia. What is the cause of the sudden tachycardia? The VSR is what is causing the cardiogenic shock! She had a very elevated troponin T at 12,335 ng/L at the time of presentation.
Dr. Smith's ECG Blog
NOVEMBER 26, 2018
The axiom of "type 1 (ACS, plaque rupture) STEMIs are not tachycardic unless they are in cardiogenic shock" is not applicable outside of sinus rhythm. In some cases the ischemia can be seen "through" the flutter waves, whereas in other cases the arrhythmia must be terminated before the ischemia can be clearly distinguished.
Dr. Smith's ECG Blog
JULY 21, 2024
The patient in today’s case presented in cardiogenic shock from proximal LAD occlusion, in conjunction with a subtotally stenosed LMCA. This progressed to electrical storm , with incessant PolyMorphic Ventricular Tachycardia ( PMVT ) and recurrent episodes of Ventricular Fibrillation ( VFib ). RCA — 100% proximal occlussion.
Dr. Smith's ECG Blog
OCTOBER 26, 2010
He was rushed by residents into our critical care room with a diagnosis of STEMI, and they handed me this ECG: There is sinus tachycardia with ST elevation in II, III, and aVF, as well as V4-V6. ACS and STEMI generally do not cause tachycardia unless there is cardiogenic shock. He had this ECG recorded.
Dr. Smith's ECG Blog
NOVEMBER 11, 2022
There is sinus tachycardia (do not be fooled into thinking this is VT or another wide complex tachycardia!) This pattern is essentially always accompanied by cardiogenic shock and high rates of VT/VF arrest, etc. This pattern is essentially always accompanied by cardiogenic shock and high rates of VT/VF arrest, etc.
EMS 12-Lead
JULY 24, 2023
It should be known that each category can easily manifest the generic subendocardial ischemia pattern. In general, subendocardial ischemia is a consequence of global supply-demand mismatch that usually ameliorates upon addressing, and mitigating, the underlying cause. What’s interesting is that the ECG can only detect ischemia.
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