Electrocardiograms measure the electrical impulses of the heart.
Men with repeated small abnormalities in a portion of their EKG results called the ST-T wave segment were found to have an increased risk of dying of heart trouble, researchers reported in Wednesday's Journal of the American Medical Association. Usually, they didn't consider them important,'' said Dr. Youlian Liao, one of the researchers. Liao, a professor of preventive medicine at Loyola University in Chicago, said doctors should not ignore even small abnormalities on EKGs.