The Evaluation of Myocardial Dyskinesia in the Patients with Coronary Artery Diseases

ABSTRACT

The evaluation of the regional wall motion abnormalities were done in 16 patients with myocardial infarction and 9 patients with anginal pectoris by the two dimensional echocardiography. The regional wall motion abnormalities detected by the two dimensional echocardiography were the highly sensitive indexes of the location of infarction(sensitivity: 84.6%) and were well correlated with the sites of infarction of the 12-lead EKG. In the patients with myocardial infarction, the apex and the distal septum of the left ventricle were the most frequently observed regions with wall motion abnormalities, which comprised 60.7% of the regions with the abnormal wall motion. The frequency of the regional wall motion abnormalities were much less frequently seen in the patients with anginal pectoris. The severity and the extent of the regional wall motion abnormalities as well as the global function of the left ventricle were well correlated with the clinical course and the prognosis in the patients with myocardial infarction during the short term observation.