Electrocardiographic prediction of coronary artery patency after thrombolytic treatment in acute myocardial infarction: use of the ST segment as a non-invasive marker.

摘要: The predictive value of the measurement changes in ST segment elevation was assessed as a non-invasive marker coronary artery reperfusion after thrombolytic treatment. Forty five patients with acute myocardial infarction (23 anterior, 22 inferior) less than six hours' duration were given treatment by either intravenous (n = 28) or intracoronary route 17). A proportional for shift segment, termed fractional change, calculated both from 12 lead electrocardiograms and Holter tape each patient. Coronary patency an initial group (training group) associated change greater equal to 0.5 (100% specific, 88% sensitive analysis; 100% 94% electrocardiogram). This rule performed well when it applied test 17 93% 67% Linear discriminant analysis then used determine which features gave best separation those whom there not. specificity sensitivity training electrocardiogram monitoring. When group, maintained at 100%, but dropped 33% irrespective whether basis monitoring electrocardiogram. These results suggest that >/= single showing injury is useful reperfusion. technique can be use more complex classification increased expense its specificity.