NEW YORK, July 31:Using electrodes to test the electrical activity of the heart is unlikely to help doctors figure out who is at risk of coronary heart disease, according to new recommendations from a government-backed panel. The United States Preventive Services Task Force wrote on Monday that there’s no good evidence the test, called an electrocardiogram, or ECG, helps doctors predict heart risks any better than traditional considerations such as smoking, blood pressure and cholesterol in people with no symptoms. (agencies)