The state of hemostasis system in patients after mild coronavirus infection

Abstract

   Introduction. One of the complications of the new coronavirus infection (COVID-19) is the development of venous thromboembolic complications. In this regard, changes in the hemostasis system that persist in the process of recovery in patients who have had a mild form of the disease are of interest.Aim. To evaluate plasma hemostasis in patients after mild coronavirus infection   Materials and methods. 39 patients after mild coronavirus infection were examined. The following parameters were assessed: APTT, PT, fibrinogen, factor VIII, von Willebrand factor, D-dimer, proteins C and S, and thrombin generation.   Results. In patients who underwent COVID-19, in comparison with healthy individuals, an increase in the plasma concentration of fibrinogen, von Willebrand factor antigen, and D-dimer was detected. Furthermore, increased activity of antithrombin III, decreased sensitivity to thrombomodulin, and an increase in the coagulation index were detected.   Conclusion. Patients who have undergone COVID-19 are characterized by a procoagulant orientation of changes in plasma hemostasis that persist up to 3 months after the disease. It is necessary to take into account the state of the hemostasis system even in patients who have undergone COVID-19 in mild form.