[Changes in hemostasis at aortic surgery under conditions of extracorporeal circulation]. 2005

M A Charnaia, and Iu A Morozov, and V G Gladysheva, and E V Roĭtman, and A M Isaeva, and Iu V Belov, and A V Goncharova

This paper describes hemostatic changes in patients who had undergone aortic surgery under conditions of extracorporeal circulation. The changes in the hemostatic system are marked by the thrombophilic condition made up for activation ox blood fibrinolytic activity in the preoperative period. The basic amount of blood loss falls within the first 6 hours after operation. Prolonged hypothermic extracorporeal circulation and the high intraoperative blood loss (over 35 ml/kg bw) lead to an appreciable decrease in antithrombin III and protein C activity which results in activation of disseminated intravascular blood coagulation in the early postoperative period and ineffectiveness of heparin therapy. Secondary hyperfibrinolysis together with combined thrombocytopenia and platelet dysfunction are the basic causes of higher than usual bleeding in patients after aortic surgery under conditions of extracorporeal circulation.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011184 Postoperative Period The period following a surgical operation. Period, Postoperative,Periods, Postoperative,Postoperative Periods
D011486 Protein C A vitamin-K dependent zymogen present in the blood, which, upon activation by thrombin and thrombomodulin exerts anticoagulant properties by inactivating factors Va and VIIIa at the rate-limiting steps of thrombin formation.
D001792 Blood Platelets Non-nucleated disk-shaped cells formed in the megakaryocyte and found in the blood of all mammals. They are mainly involved in blood coagulation. Platelets,Thrombocytes,Blood Platelet,Platelet,Platelet, Blood,Platelets, Blood,Thrombocyte
D001807 Blood Vessel Prosthesis Device constructed of either synthetic or biological material that is used for the repair of injured or diseased blood vessels. Vascular Prosthesis,Blood Vessel Prostheses,Tissue-Engineered Vascular Graft,Graft, Tissue-Engineered Vascular,Grafts, Tissue-Engineered Vascular,Prostheses, Blood Vessel,Prostheses, Vascular,Prosthesis, Blood Vessel,Prosthesis, Vascular,Tissue Engineered Vascular Graft,Tissue-Engineered Vascular Grafts,Vascular Graft, Tissue-Engineered,Vascular Grafts, Tissue-Engineered,Vascular Prostheses,Vessel Prostheses, Blood,Vessel Prosthesis, Blood
D005112 Extracorporeal Circulation Diversion of blood flow through a circuit located outside the body but continuous with the bodily circulation. Circulation, Extracorporeal,Circulations, Extracorporeal,Extracorporeal Circulations
D005260 Female Females
D006487 Hemostasis The process which spontaneously arrests the flow of BLOOD from vessels carrying blood under pressure. It is accomplished by contraction of the vessels, adhesion and aggregation of formed blood elements (eg. ERYTHROCYTE AGGREGATION), and the process of BLOOD COAGULATION. Hemostases
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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