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Medical AI Inquiry: You was designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.  Labels: BACKGROUND, METHODS, RESULTS. Meshes: Echocardiography, Female, Humans, Male, Middle Aged, Myocardial Infarction, Reproducibility of Results, Sensitivity and Specificity, Thrombolytic Therapy, Treatment Outcome, Ventricular Dysfunction, Left.
user
Do electrocardiographic markers predict left ventricular wall motion improvement in patients with acute myocardial infarction receiving thrombolysis? Context: In patients with ST-elevation myocardial infarction (STEMI) treated with fibrinolysis, prediction of early left ventricular wall motion changes is important for prognosis. In 106 patients with STEMI treated with thrombolysis, we analyzed the degrees of total and maximal ST-segment resolution at 3 hours and changes in sums of T-wave amplitudes in leads with ST elevation 3 and 48 hours after thrombolysis as the predictors of the echocardiographic left ventricular wall motion score index (WMSI) improvement. Wall motion score index improvement was best predicted by total ST-segment resolution of more than 44% in anterior infarctions (sensitivity, 81%; specificity, 62%) and more than 59% in nonanterior infarctions (sensitivity, 100%; specificity, 42%) and by difference in sums of T-wave amplitudes between electrocardiograms at 48 hours and baseline less than -28 mm (sensitivity, 68%; specificity, 76%).
assistant
In STEMI, the total ST-segment resolution 3 hours and T-wave changes at 48 hours after thrombolysis are the reliable predictors of the left ventricular WMSI improvement. Final Decision: yes