What does ST elevation mean in aVR?
ST elevation in aVR may indicate: Triple vessel disease. Proximal Left Anterior Descending (LAD) artery occlusion; usually proximal to the major septal branch, when it occurs in the presence of anterior ST elevation. It can be benign as in Supraventricular tachycardia (SVT)
What does ST elevation in V1 mean?
011). Conclusions: ST-segment elevation in V1 on admission in patients with acute Q-wave inferior wall myocardial infarction indicates a right coronary artery lesion associated with a larger infarct size and a higher incidence of major in-hospital arrhythmias.
What is the significance of ST elevation in lead aVR?
Exercise-induced ST-segment elevation in ECG lead aVR is a useful indicator of significant left main or ostial LAD coronary artery stenosis.
What causes ST elevation in MI?
An acute ST-elevation myocardial infarction occurs due to occlusion of one or more coronary arteries, causing transmural myocardial ischemia which in turn results in myocardial injury or necrosis.
Can ST elevation be normal?
As age progresses, the prevalence of elevation of the ST segment declined. Thus, most men have elevation of the ST segment greater than 0.1 mV in the precordial leads. Therefore, elevation of the ST segment should be regarded as a normal finding and is often termed “male pattern”.
What does ST elevation in AVR stand for?
ST elevation (STE) in lead augmented vector right (aVR), coexistent with multilead ST depression, was endorsed as a sign of acute occlusion of the left main or proximal left anterior descending coronary artery in the 2013 STEMI guidelines.
What causes ST-segment elevation in V1 and V2?
On the other hand, the slight ST-segment–elevation in III and aVF is compatible with acute inferior myocardial infarction. 1 In that case, the ST-segment–elevation in V1-V2 could be explained by right ventricular involvement.
What is the significance of the finding highlighted in AVR?
Arrowhead indicates ST-segment elevation in lead aVR. Questions: Assuming that the patient is presenting with an acute coronary syndrome, should his case be approached and managed as a non-ST segment (NSTEMI) or ST-segment elevation myocardial infarction? What is the significance of the finding highlighted in aVR (arrowhead)?
Why does ST depression in AVR not localise?
In the case of subendocardial ischaemia, ST elevation in aVR is simply a reciprocal change to ST depression in these leads ST depression does not localise, and thus subendocardial ischaemia due to oxygen supply/demand mismatch produces a consistent ECG pattern of lateral ST depression and reciprocal ST elevation in aVR