The article shows the results of clinical and functionalchanges in the myocardium in patientswith chronic heart failure (CHF) after the percutaneouscoronary intervention (PCI). The study aimedto evaluate the results of clinical and functional changesin the left ventricular myocardium in patients with CHFafter transluminal balloon angioplasty (TLBAP) of thecoronary arteries with stenting of the coronary arteriesduring the observed period and to study the safety of surgicalintervention in these patients. During the year, 96patients with chronic heart disease (CHD) were observedin the age range from 40 to 70 years who had CHF I,IIA, IIB stages, from I to III functional class. All patientswith clinical indications and coronary angiography (CAG)data were routinely performed TLBAP with stenting ofa symptom-dependent coronary artery with appropriatemedication. The study showed a statistically significantdecrease in the functional class of CHF after percutaneouscoronary intervention, followed by an improvement inthe diastolic function (E/A) of the LV in the course of theobserved period
