Remove Coronary Angiogram Remove Defibrillator Remove Stenosis
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A man with chest pain off and on for two days, and "No STEMI" at triage.

Dr. Smith's ECG Blog

During angiogram in the cath lab, the patient suffered two episodes of ventricular fibrillation for which he was successfully defibrillated. Angiogram showed a culprit lesion of 100% stenosis to the right coronary artery and 100% stenosis of the right posterior descending artery, both with TIMI 0 flow.

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What Lies Beneath

EMS 12-Lead

We can, therefore, put down the defibrillation pads, set aside the amiodarone, and look further at the ECG. The coronary angiogram revealed no critical stenosis, or acute plaque ulceration. Paradoxically, though, the third green arrow identifies a QRS that is more narrow than the RBBB complexes surrounding it.