Assessment of myocardial viability by dobutamine stress echocardiography in patients with ischemic heart disease |
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Authors: | Gorniakova N B Botvin I M Sumarokov A B Afanas'eva Iu V Naumov V G |
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Institution: | Cardiology Research Complex; ul. Tretiya Cherepkovskaya, 15a, 121552 Moscow, Russia. |
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Abstract: | Detection of viable (hibernating) myocardium is necessary for determination of prognosis and tactics of treatment of patients with ischemic heart disease. For detection of viable myocardium and investigation of possibilities of its restoration 60 patients with ischemic heart disease (54 men, mean age 52+/-8 years) were examined before coronary artery bypass grafting or coronary angioplasty. Presence of viable myocardium was characteristic for patients with multivessel coronary artery disease (83%) with stenoses >90%, with well developed collateral circulation (81%). Sustained restoration of contractility of hibernating segments for 1 year after revascularization was noted in 70% of cases. Dobutamine stress echocardiography was found to have high diagnostic potential for detection of viable myocardium. |
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