An ECG is a test that medical professionals use to analyze the electrical impulses in a person’s heart. An ST depression is a specific finding that may appear in a person’s ECG results. It occurs when the ST segment appears atypically low and sits below the baseline in someone’s results.

An ST depression can occur due to medical conditions, including hypokalemia, myocardial ischemia, and a left bundle branch block. The use of the medication digitalis can also cause this specific ECG result.

A person may treat the underlying condition that is causing their ST depression.

People with an ST depression may also wish to make some lifestyle changes to help improve their heart health. This can include eating a nutritious diet, getting regular physical exercise, avoiding smoking, and maintaining a moderate weight.