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  • Title: [Morphologic changes in the thrombus and venous wall in experimental phleobothrombosis and thrombophlebitis].
    Author: Baeshko AA, Berlov GA, Rogov IuI, Kriuchok AG, Markautsan PV, Sysov AV, Gerasimova TN, Izvestnova LA.
    Journal: Morfologiia; 1998; 114(5):59-64. PubMed ID: 9914994.
    Abstract:
    Phlebothrombosis and thrombophlebitis were induced in dogs by percutaneous intraoperative introduction of thrombotic mass, obtained in vivo (20-40 animal blood per 3-4 ml thrombin solution) into jugular vein and studied in postoperative days 1, 3, 5, 7, 10 and 14 through light microscope. The preparations were stained with hematoxylin and eosin and after Hart, Van-Gieson and MSB. Venous intima was established to alter already on the next day following thrombophlebitis modeling. On d 3 and 5 epithelium desquamation and moderate leukocytic infiltration of media between smooth myocytes were found. On d 7 signs of thrombus organization, i.e. invasion of fibroblastic series cells and small capillaries inside it, were demonstrated. Muscular layer and adventitia display leukocytic infiltration. Venous wall thickens due to disorders of blood passage in vasa vasorum. On d 10 the portion of the thrombus attached to the wall was essentially organized. Fibroblasts and capillaries invade inside the thrombus, connective tissue fibres are formed. Sclerotic changes were noted in adventitia. By the end of the 2nd week venous wall showed muscular layer atrophia and sclerosis. Middle portions of the thrombus were involved in organization, canals lined with endothelium are formed in it. In case of thrombophlebitis changes in thrombus and venous wall develop earlier and are more pronounced.
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