[Morphofunctional changes in the myocardium in patients with coronary insufficiency and disorders of the contractile function of the heart].

Altogether 64 patients with coronary heart disease (CHD) were examined using coronaroventriculography, bicycle ergometry with echocardiogram recorded at rest and in threshold exercise. During aortocoronary bypass surgery myocardial biopsies were taken from 20 patients. A correlation analysis of the morphofunctional state of the microcirculatory bed and changes in myocardial contractility showed that a decrease in myocardial contractility occurred in parallel with structural shifts.