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[The role of stress-echocardiography in diagnostics of hemodynamically significant coronary artery stenosis and determination of indications for myocardial revascularisation.].

In 118 patients dobutamine (n=108) or exercise (n=10) stress-echocardiography and coronary angiography were carried out within time interval of 4 weeks. Retrospective analysis of data obtained showed that sensitivity and specificity of stress echocardiography for detection of more than 70% coronary artery stenosis was 75 and 71%, respectively. No significant reduction of sensitivity or specificity was found in any clinical group. Negative result of stress echo in most of the cases evidenced for continuation of conservative therapy while positive result in 66% of cases attested necessity of myocardial revascularization. Detection of stress induced disturbances of local myocardial contractility could be used as a proof of hemodynamic significance of 50-70% coronary artery stenosis.