What does inferior ST elevation mean?
Inferior STEMI is usually caused by occlusion of the right coronary artery, or less commonly the left circumflex artery, causing infarction of the inferior wall of the heart [6, 7]. Upon ECG analysis, inferior STEMI displays ST-elevation in leads II, III, and aVF.
What is the meaning of ST elevation?
ST elevation refers to a finding on an electrocardiogram wherein the trace in the ST segment is abnormally high above the baseline.
What does ST elevation mean in the heart?
ST-segment elevation usually indicates a total blockage of the involved coronary artery and that the heart muscle is currently dying. Non-STEMI heart attacks usually involve an artery with partial blockage, which usually does not cause as much heart muscle damage.
What is the cause of ST elevation?
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.
What can cause ST elevation?
Is inferior infarct serious?
Inferior myocardial infarctions have multiple potential complications and can be fatal.
What areas of the heart are affected in inferior myocardial infarction?
While inferior wall MIs traditionally have a good prognosis, there are a few factors that may increase mortality. Approximately 40% of inferior wall infarctions also involve the right ventricle. Right ventricular infarctions are very pre-load dependent, and nitrates may precipitate a drop in blood pressure.
What is the treatment for inferior infarct?
While heart blocks are a main contributor to morbidity and mortality, most high-degree heart blocks are treatable with atropine. It is seldom necessary to use a temporary pacemaker. The damaged myocardium can lead to potentially lethal arrhythmias such as ventricular tachycardia and ventricular fibrillation.
How is ST elevation treated?
What are the treatment options for a STEMI?
- Option 1: Percutaneous coronary intervention (PCI) First, we look for where the blockage is located.
- Option 2: Thrombolysis.
- Option 3: Medications.
- Option 4: Coronary bypass surgery.
What is an inferior wall ST segment elevation?
Inferior Wall ST Segment Elevation Myocardial Infarction (MI) ECG Review. An inferior wall myocardial infarction — also known as IWMI, or inferior MI, or inferior ST segment elevation MI, or inferior STEMI — occurs when inferior myocardial tissue supplied by the right coronary artery, or RCA, is injured due to thrombosis of that vessel.
What is a high STST elevation?
ST-segment elevation of greater than 1 mm (greater than 2 mm in leads V1/V2 in males) in two anatomically contiguous leads on an electrocardiogram (ECG) in the patient with fitting history and physical exam findings are adequate for diagnosis in an acute setting [3].
What is inferior wall myocardial infarction?
An inferior wall myocardial infarction — also known as IWMI, or inferior MI, or inferior ST segment elevation MI, or inferior STEMI — occurs when inferior myocardial tissue supplied by the
What are the different types of ST segment elevation?
ST segment elevation in the inferior leads (II, III and aVF) Reciprocal ST segment depression in the lateral and/or high lateral leads (I, aVL, V5 and V6)