[The use of echocardiography in examining patients with unstable stenocardia]

The report presents the results of EchoCG study in 81 patients with unstable stenocardia admitted in 6-24 hours from the onslaught pain. With the help of EchoCG the myocardial contractile function was defined and the segmental kinetics of left ventricular wall was registered with respect to four variants of unstable stenocardia courses: stenocardia occurred for the first time, progressive stenocardia, variational stenocardia and postmyocardial infarction stenocardia. During the EchoCG examination at the moment of anginal attack the significant increase in left ventricular end-diastolic volume and end-systolic volume and decrease of total ejection fraction were noted. Also, not infrequently the zones of dyskinesia are recorded indicative of ischemia of these segments, which commonly have transient character. With the progress of myocardial ischemia the abnormalities of left ventricular diastolic fraction appear which are determined with the help of Doppler-EchoCG. Thus, the use of EchoCG in diagnostics of patients with unstable stenocardia allows more reliably to define the degree of myocardial changes.