CLINICAL AND GENETIC PECULIARITIES OF VASCULAR MANIFESTATIONS OF ANTIPHOSPHOLIPID SYNDROME (CASE REPORT).

Pathogenetic mechanisms of the development of antiphospholipid syndrome (APS) are considered in the article, which is the basis for the development of clinical manifestations and laboratory markers of APS. The modern literature data are analyzed, according to which the presence of antiphospholipid antibodies is a hypercoagulable background, and the formation of thrombi occurs under the influence of other allowing procoagulation factors. The classification of the main types of hereditary thrombophilia is given, which is the primary disorder, against the background of which an autoimmune thrombosis APS develops. A clinical observation of a young age patient is given, whose heterozygous carriage of mutations in the genes responsible for blood coagulation (F7, PAI-1 and ITGB3-β-integrin), as well as homozygous carriage of a mutation in the MTRR gene associated with a violation of homocysteine methylation, APS was developed, which led to the processes of thrombosis. Timely diagnosis and individually developed pathogenetic therapy allow avoiding life-threatening complications of APS and improving the patients' quality of life. A conclusion about the need for APS and hereditary thrombophilias' examination to all patients of young age with unprovoked thrombosis of deep veins of lower extremities and PE was made.