Chronic heart failure is the most unfavorable outlook for most cardiovascular diseases. Not treating the disease reduces patient’s quality of life and steadily increases the risk of death. Drug therapy during chronic heart failure does not always bring the desired result, that is why research and development of new treatments are constantly conducted. One of the most promising treatments for chronic heart failure is cardiac resynchronization therapy, whose main goal is reduction in the degree of myocardial dyssynchrony, which is often found in patients with chronic heart failure. Cardiac resynchronization therapy improves patient’s quality of life, increases exercise tolerance, improves systolic myocardial function, promotes reverse remodeling of the heart muscle and decreases the frequency of hospitalization and mortality of patients with chronic heart failure. This article describes two clinical cases of the use of сardiac resynchronization therapy with a defibrillator in patients with chronic heart failure.
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