In cardiology ST refers to the ST segment of a cardiac cycle which when elevated on an ECG indicates a heart attack (myocardial infarction)
ecg
The ECG sign of subendocardial ischemia is ST segment depression. Note that ECG is used more now that EKG.
ST elevation refers to an abnormality seen in an electrocardiogram (ECG) where the ST segment is elevated above the baseline. This finding is often associated with acute myocardial infarction (heart attack), indicating that a portion of the heart muscle is not receiving enough blood and oxygen. ST elevation can also be seen in other conditions, such as pericarditis or early repolarization. Prompt medical evaluation is crucial when ST elevation is detected.
NSST on an ECG stands for non-specific ST, and is usually followed by the word "changes." Non-specific ST changes are alterations in the shape, height, or slope of the ST segment in the ECG that don't point to a particular diagnosis.
st segments
ST elevation
The ECG of a patient with hypocalcemia will show q number of different distinct patterns. The ECG will show a T wave that is inverted and flattened, a prolongation of the QT interval, a narrowing of the QRS complex, a prolonged ST and ST depression, a reduction in the PR interval, and a prominent U wave.
ST elevation in mayocardial infarction & st depression in ischemic disease
Patrick was elevated to bishop by Pope Celestine I. After death he was raised to sainthood.
This stands for an ST segment elevated, myocardial infarction. This is a subtype of myocardial infarcation aka a heart attack whereby the heart does not receive sufficient oxygen, commonly due to a blockage of one of the coronary (heart) arteries leading to heart muscle death. It is named so because on an ECG/EKG, you can characteristically see an elevation developing in the ST segment i.e. the end of electrical depolarisation and ventricular repolarisation over time. This is contrasted with a non-ST elevated MI aka an NSTEMI, also known as unstable angina, that does not show this classical ST elevation.
ST segment