Oct 8, 2024 · 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.

An ST-elevation myocardial infarction (STEMI) is a type of heart attack that mainly affects your heart’s lower chambers. They are named for how they change the appearance of your heart’s electrical activity on a certain type of diagnostic test.

Feb 11, 2025 · A widow maker heart attack occurs when a blood clot or plaque completely blocks the left anterior descending (LAD) artery, one of the arteries around the heart.

Feb 11, 2015 · LAD stands for left anterior descending artery. It is a coronary artery, which is the name given to arteries that supply the heart muscle with blood. The LAD is considered the most important of the three main coronary arteries and is almost always the largest.

Aug 21, 2016 · Unfortunately, LAD occlusion does not always present with reciprocal changes, so we need to have other strategies to help rule-in the diagnosis. Let’s look at some examples. Example 1. ST-segment elevation is present in leads V1-V4. There is reciprocal ST-segment depression in leads II, III, aVF, and V6.

Lateral STEMIs generally result from the occlusion of the left circumflex coronary artery or the diagonal branch of the left anterior descending. On ECG, this is recognized by ST elevations in the lateral leads (V5-6) or the high lateral leads (I and AVL).

Oct 8, 2024 · Clinical Significance of lateral STEMI. The lateral wall of the LV is supplied by branches of the left anterior descending (LAD) and left circumflex (LCx) arteries. Infarction of the lateral wall usually occurs as part of a larger territory infarction, e.g. anterolateral STEMI.

Jan 25, 2015 · An ST-elevation myocardial infarction (STEMI) is a combination of symptoms of chest pain and a specific STEMI EKG heart tracing. The EKG has to meet what is called STEMI criteria to make a correct diagnosis, just like an NSTEMI will provide another set of specific diagnostic criteria.

Sep 22, 2020 · In the vast majority of cases of anterior, anteroseptal and anterolateral wall STEMIs, the culprit event is an acute occlusion of the left anterior descending (LAD) artery. The presence of concomitant ST-segment elevations in aVR may signify acute occlusion of the left main coronary artery (LCMA).

Apr 21, 2023 · High lateral STEMI is associated with a pattern of ST elevation caused by acute occlusion of the first diagonal branch of the left anterior descending coronary artery (LAD-D1). With the 4×3 display of the 12-lead ECG, the location of the most impressive ST deviations resemble the shape of the South African flag: