| Popis: |
To assess the value of echocardiography in interpretation of exercise ST-elevation 61 patients (age 29-70, mean 53 years old) underwent exercise stress test and echocardiography 3-4 weeks after an acute myocardial infarction. Isolated ST-elevation in exercise ecg was found in 12 patients (19.7%), significant more frequently in anterior than inferior infarction. All patients with ST-elevation had left ventricular asynergy recognized by echocardiography. When compared to the patients without exercise ST-elevation, we found that dyskinesis was significant more frequently in patients without exercise ST-elevation (respectively: 50% i 2.6%; p less than 0.001). Index of asynergy was significant higher in patients with exercise ST-elevation (respectively: 0.59 and 0.25; p less than 0.01). Thus, exercise ST-elevation after acute myocardial infarction is a good marker of severe left ventricular asynergy recognized by echocardiography. |
