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Cardiac arrest: even after the angiogram, the diagnosis is not always clear

Dr. Smith's ECG Blog

It was stented. Updates on the Electrocardiogram in Acute Coronary Syndromes. Current Emergency and Hospital Medicine Reports (2013) 1:4352. Electrocardiogram patterns in acute left main coronary artery occlusion. Here is the post cath ECG T-wave inversions consistent with anterior MI, but not diagnostic. References : 1.

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A man in his early 40s with chest pain a "normal ECG" by computer algorithm. Should we avoid interrupting a physician to interpret his ECG?

Dr. Smith's ECG Blog

LAD and D1 were stented, but flow unfortunately could not be well restored despite efforts (they list the post intervention TIMI flow still as 0). Serial tracings following stent placement confirmed the large extent of myocardial injury. LCX and RCA were described as "normal" in the cath report. Am J Emerg Med. 2022 Jan;51:384-387.

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How does Acute Total Left Main Coronary occlusion present on the ECG?

Dr. Smith's ECG Blog

At the bottom of the post, I have re-printed the section on aVR in my article on the ECG in ACS from the Canadian Journal of Cardiology: New Insights Into the Use of the 12-Lead Electrocardiogram for Diagnosing Acute Myocardial Infarction in the Emergency Department Case 1. Updates on the Electrocardiogram in Acute Coronary Syndromes.

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A man in his 70s with acute chest pain and paced rhythm.

Dr. Smith's ECG Blog

So the patient was taken for emergent cath, showing: Culprit artery: LAD (100% stenosis, TIMI 0) requiring thrombectomy and stent. Queen of Hearts interpretation: Now the cardiologist considered it "STEMI"! 3 , 4 Q-waves defined the diagnosis of myocardial infarction before modern cardiac imaging was widely available.