Objectives to determine the clinical and instrumental relationships and prognostic value of sST2 in chronic heart failure with reduced and mid-range ejection fraction of ischemic etiology. Material and methods. The study included examination of 64 patients with heart failure with left ventricular ejection fraction 50% and myocardial infarction in medical history; mean age 55. https://foldlyers.shop/product-category/sensors/