[The seasonal dynamics of hemostasis and fibrinolysis in the central belt of Russia].

Upon evaluating seasonal shifts in hemostasis in healthy subjects (3200 examinees aged 18-40) it was established that coagulation rate is the highest in spring. This phenomenon occurred in association with activated fibrinolysis, reduced levels of antithrombin III and more marked paracoagulant tests. Natural lysis of the clot and euglobin fibrinolysis proved more intensive in spring, while least intensive in winter.