Source:http://linkedlifedata.com/resource/umls/id/C0520887
NCI: An electrocardiographic finding of ST segment depression below the baseline, often described as up sloping, down sloping or horizontal. (NCI),NCI: An electrocardiographic finding of ST segment depression below the baseline, often described as upsloping, downsloping or horizontal.,NCI: The normal ST segment of the EKG tracing begins at the isoelectric line, is typically isoelectric (flat), extending from the end of the S wave and curving gradually upward to the beginning of the T wave. Causes of ST segment depression include myocardial ischemia, digoxin effect, ventricular hypertrophy, acute posterior myocardial infarction, pulmonary embolus, left bundle branch block.