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A man in his 30s with cardiac arrest and STE on the post-ROSC ECG

Dr. Smith's ECG Blog

It was reportedly a PEA arrest; there was no recorded V Fib and no defibrillation. The morphology of V2-V4 is very specific in my experience for acute right heart strain (which has many potential etiologies, but none more common and important in EM than acute pulmonary embolism). CT angiogram showed extensive saddle pulmonary embolism.