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THE PREVALENCE OF THROMBOTIC EVENTS IN CHILDREN WITH HEART FAILURE ON THE BACKGROUND OF THE DILATED CARDIOMYOPATHY PHENOTYPE


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Abstract

Thrombotic events seem to be one of the most common and severe complications having a direct impact on the course of the disease in patients with cardiomyopathy.There were examined 94 children with dilated cardiomyopathy (DCMP) phenotype [49 children with dilated cardiomyopathy (DCMP), including 45 patients with non-compaction cardiomyopathy (NCMP) and remodeling in dilated phenotype]. Thromboses were diagnosed in 9 patients, including 7 DCMP and 2 NCMP cases. In 4 DCMP children, the thrombus was localized in the cavity of the left ventricle, one in the left atrium, the right ventricle, and the inferior vena cava. In NCMP children, intracardiac thrombus formation was not determined, one patient was diagnosed with an acute ischemic disorder of the cerebral circulation; in the second one, the thrombus was detected in the superior vena cava. Thrombosis in DCMP patients was detected against a background of a severe systolic dysfunction of the left ventricle (LVEF of below 30%), and in NCMP children with a moderate dysfunction. Also, the greatest prevalence rate of thrombotic complications was noted in Functional Class III and IV heart failure cases. At the same time, there was no established any influence of polymorphic markers G1691A of gene F5, G20210A of gene F2, C677T of MTHFR gene on the prevalence of thrombotic events. The authors believe the formation of thrombi with the severe LV dysfunction in children with cMYP should be taken into account in the determination the tactics of the treatment of such patients, as it is necessary to make a decision about administering antithrombotic therapy.


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