ST elevation in aVR is classically associated with left main occlusion, but can also be caused by severe triple vessel disease or diffuse subendocardial ischemia.
See also: ST segment
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- Dr Smith's ECG Blog (2019) - How does acute left main occlusion present on the ECG?, (Accessed: 24/08/2019)
This ECG is from a woman in her 50s who presented with 3 days of intermittent chest pain that became worse on the day of presentation, with diaphoresis and radiation to the left arm, as well as abdominal pain.
This ECG shows widespread ST depression with ST elevation in aVR and V1-2, due to a 100% left main occlusion.
This ECG is from a woman in her 60s who presented with hypotension, bradycardia, chest pain and back pain. She had a history of aortic aneurysm, mechanical aortic valve and peripheral vascular disease.
This ECG shows widespread ST depression with ST elevation in aVR. The cause was aortic valve thrombosis.