What does it means when patient has ST depression on ECG?

Answer 1

ST Depressions can have a couple of meanings

On their own, they may be a characteristic of an NSTEMI. This is an MI, so ischemia, but not full thickness. This may be seen as well in a stress test when the patient has reversible ischemia.

A place where you can see it where it is even more ominous is in the context of reciprocal depressions. This is often seen in a STEMI. In this case the patient meets STEMI criteria- ST Elevations of 2mm in at least 2 contiguous leads, but they will also have depressions in other leads. This can be helpful to separate STEMI from pericarditis which has diffuse ST Elevations.

Answer 2

ST depression has no specific meaning on an EKG, however to answer your question simply, I would say it means subendocardial ischemia.

Varying degrees of depression are expected to be different in different leads. The manner of the depression; upsloping, horizontal, or downsloping helps to classify the cause, as well as if there is involvement of the T-wave. Some relatively common causes of ST segment depression include medication‘s, electrolyte abnormalities especially hypokalemia, ischemia, repolarization abnormality is very commonly left ventricular hypertrophy, conduction system disorders where the associated repolarization abnormalities such as bundle branch block, etc.

hyperventilation, tachycardia, hypertension, exerercise etc.. . In general if ST depression is horizontal or down sloping It is more concerning and more likely due to seven cardio ischemia

Answer 3