[The role of hemorheological disorders in the development of postoperative thrombosis of the deep veins of the legs].

The interrelationship between hemorheological alterations (hyperviscosity of blood, lower deformability of erythrocytes, elevated aggregation activity of thrombocytes) developing prior to and during operation and the development of intra- and postoperative thromboses of profound veins of lower extremities was studied by results of examination of 70 surgical patients. It was found that in 44% of the patients the initial phase of thrombosis can be diagnosed within the first 3 hours after operation. Risk factors of the development of thrombosis are high preoperative viscosity of blood, circulating thrombocyte aggregates, low fibrinolytic activity of plasma.