Cookies on this website

We use cookies to ensure that we give you the best experience on our website. If you click 'Accept all cookies' we'll assume that you are happy to receive all cookies and you won't see this message again. If you click 'Reject all non-essential cookies' only necessary cookies providing core functionality such as security, network management, and accessibility will be enabled. Click 'Find out more' for information on how to change your cookie settings.

OBJECTIVE: Total exercise duration and abnormal QRS score values are treadmill exercise testing (TET) prognostic parameters that have been shown to be significantly and independently associated with cardiac mortality. We evaluated the prognostic value of a new index (M score, Michaelides score) incorporating TET duration and QRS score values in a simple index. METHODS: In this study, we included 626 patients, who underwent TET and coronary arteriography. Cardiac catheterization showed the presence of coronary artery disease in 64.3% of these patients. The M score was calculated by adding the value of the Athens QRS score to the duration of TET (in minutes). The outcome measure was a composite of myocardial infarction or death. Patients were prospectively followed for 38+/-21 months (median 36 months). RESULTS: The composite endpoint was more frequent among the patients of the 1st quartile (M-score values

Original publication




Journal article


Coron Artery Dis

Publication Date





337 - 342


Aged, Cardiac Catheterization, Coronary Angiography, Coronary Artery Disease, Electrocardiography, Exercise Test, Female, Follow-Up Studies, Heart Conduction System, Humans, Male, Middle Aged, Myocardial Infarction, Predictive Value of Tests, Prognosis, Proportional Hazards Models, Prospective Studies, Risk Assessment, Risk Factors, Time Factors