A patient presents with chest pain and ST elevation in leads II, III, and aVF. According to the universal definition of MI, which coronary artery is most likely involved, and what is the ECG diagnosis?
Right coronary artery; inferior STEMI
ST elevation localised to leads II, III and aVF defines an inferior-wall ST-elevation myocardial infarction (inferior STEMI), which is most commonly caused by occlusion of the right coronary artery (RCA) — the vessel supplying the inferior left ventricle in roughly 85 % of hearts (right-dominant circulation).
LAD occlusion causes anterior STEMI (V1–V4), left circumflex causes lateral STEMI (I, aVL, V5–V6), and posterior descending branch alone causes isolated posterior infarcts — none fits the given lead pattern.
Hence, Right coronary artery; inferior STEMI.
Similar Questions
Which ECG change is most commonly associated with myocardial ischemia?
Which ECG change is most characteristic of an acute myocardial infarction?
Which segment is primarily analyzed to diagnose an ST-elevation myocardial infarction (STEMI)?
What is a typical ECG finding in patients with cerebral infarct?
In the context of CVS monitoring, which finding in myxedema patients could be explained by their ECG pattern?
Which combination of symptoms and ECG findings is most indicative of myocardial infarction?
Which ECG finding most reliably indicates myocardial ischemia rather than established myocardial infarction?
Which ECG change is most commonly seen during an episode of angina pectoris?
During continuous ECG monitoring following subarachnoid hemorrhage, transient deep T-wave inversions are most accurately explained by which underlying mechanism?
During an acute myocardial infarction, which change in coronary circulation most directly impairs myocardial function?
Important Questions from Introduction to Cardiovascular Diseases
Which ECG change is most commonly associated with myocardial ischemia?
Which ECG change is most characteristic of an acute myocardial infarction?
Which segment is primarily analyzed to diagnose an ST-elevation myocardial infarction (STEMI)?
What is a typical ECG finding in patients with cerebral infarct?
In the context of CVS monitoring, which finding in myxedema patients could be explained by their ECG pattern?
