See also: Types of ECGs
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This ECG is from an elderly male who presented with chest pain. He has a pacemaker. This was his second prehospital ECG.
This ECG shows ventricular paced rhythm with excessive discordant ST elevation in V3 as well as concordant ST elevation in V2 and V4. The cause was most likely a proximal LAD or left main occlusion. This was missed and the patient died.