The results of echocardiographic study of 87 children with coarctation of aorta before and after surgical treatment are presented. All children were broken down in two groups: patients with a low ejection fraction and those with a normal one. While determining the type of left ventricle remodeling. eccentric hypertrophy was revealed in 46% of patients in the first group. https://allfixelectricales.shop/product-category/shaver-cord/