2024年10月8日 · ST elevation in aVR with co-existent multi-lead ST depression indicates subendocardial ischaemia due to O2 supply/demand mismatch. ST elevation in aVR can also be seen in the context of anterior STEMI due to LAD occlusion proximal to the first septal branch, causing infarction of the basal septum.

2020年3月10日 · Take home points on ST elevation in aVR, STEMI-equivalent? Diffuse ST depression, with reciprocal ST elevation in aVR, can be a baseline secondary repolarization abnormality (eg from LVH, LBBB), rate-related (eg tachydysrhythmia) or caused by a metabolic/toxic causes (eg hypokalemia, digoxin)

2019年1月9日 · 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.

Insights into the significance of ST segment elevation in aVR are presented and discussed in light of the current medical data. Keywords: ST elevation, aVR, V1, acute coronary syndrome.

2024年10月8日 · Anterior STEMI usually results from occlusion of the left anterior descending artery (LAD). Anterior myocardial infarction carries the poorest prognosis of all infarct locations, due to the larger area of myocardium infarct size.

AVR elevation is commonly thought of as a sign of Left Main Coronary Artery (LMCA) occlusion. However, STE 0.5mm or greater in lead aVR to be present in 78% of patients with and 14% of patients without LMCA stenosis.

aVR STEMI is well recognised as a sign of acute occlusion of the left main stem (LMS) or proximal left anterior descending (LAD) coronary artery. However, whether aVR STEMI is always associated with acute thrombotic coronary occlusion is still debatable.

In patients with inferior (± RV) ST‐segment elevation myocardial infarction (STEMI), with the use of multivariate analysis, admission aVR ST depression ≥1 mm was found to be a strong and independent predictor of MACE within 30 days of discharging (P value for trend .01).

aVR STEMI. Definition. Electrical activity from the right upper portion of the heart is recorded by aVR. Infarction in this area produces ST elevation in aVR and reciprocal changes in leads I, II, aVL, and V4-6. Indicative of Left Main coronary artery occlusion, though can also reflect proximal LAD occlusion or severe triple-vessel disease.

Five clinical pearls for augmented vector right (aVR) ST-segment elevation (STE) are presented. A mnemonic for differential diagnosis in nonocclusve aVR STE is discussed. A brief review of the evolving literature on the high mortality rate associated with aVR STE is provided.