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[Scintigraphy of the myocardium in ischemic heart disease].

Altogether 106 patients with different types of acute CHD (large and small local MI, unstable angina) and stable angina were investigated. Combined assessment of perfusion disorder permits differentiation of necrotic and ischemic myocardial lesions. A degree and type of RP accumulation corresponds to a size of necrotic myocardial lesion determined by means of biochemical markers of necrosis. Parallelism of myoglobin concentration, isoenzyme activity in the blood serum and the results of scintigraphy was revealed. In focal RP accumulation, myoglobin concentration reached maximum values; a moderate increase and decrease up to normal values in the absence of accumulation were observed in diffuse accumulation. Diffuse RP accumulation in patients with stable and unstable types of angina was indicative of transient perfusion disorders resulting from myocardial ischemia.