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Obstetrics, Gynecology and Reproduction ; 16(2):158-175, 2022.
Article in Russian | EMBASE | ID: covidwho-1957618


These days, anticoagulants are in great demand. They are used as a prophylaxis for thromboembolic complications in various diseases and conditions in general therapeutic practice, cardiology, neurology, as well as obstetrics to manage high-risk pregnancies. The relevance of anticoagulants competent use has come to the fore in connection with the emergence of a new disease – COVID-19 and its serious complications such as developing thrombotic storm, in which the timely applied anticoagulant therapy is the key to the success of therapy. The risk of bleeding should be considered when using any anticoagulant. Age, impaired renal function and concomitant use of antiplatelet agents are common risk factors for bleeding. Moreover, only vitamin K antagonists and heparin have specific antidotes – vitamin K and protamine, respectively. Inhibitors of other anticoagulants are universal presented as inactivated or activated prothrombin complex concentrate and recombinant factor VIIa. Hemodialysis effectively reduces dabigatran concentration, activated charcoal is effective in the case of recent oral administration of lipophilic drugs. Research on new antidotes of currently available anticoagulants is under way, similar to testing of new types of anticoagulants that are sufficiently effective in preventing and treating thromboembolic complications with minimal risk of hemorrhagic. The main contraindication to anticoagulants use is the doctor's ignorance of the mechanisms of drug action and opportunities for suppressing its effect.

Vestnik Rossiiskoi Akademii Meditsinskikh Nauk ; 76(3):268-278, 2021.
Article in Russian | EMBASE | ID: covidwho-1411069


Coronavirus disease 2019 (COVID-19) is a viral infection that, in severe course, leads to the development of a cytokine storm, systemic inflammatory response and coagulopathy. Unlike other sepsis-associated disseminated intravascular coagulopathy, COVID-19 induced coagulopathy is realized mainly in thrombosis. Researchers around the world are currently developing adequate diagnostic, monitoring and anticoagulant therapy approaches to safely and effectively manage patients with severe COVID-19. The need to develop laboratory monitoring is due to the fact that 20% of patients have changes in hemostasis indicators, while in patients with a severe form of the disease, they are present in 100% of cases. In case of deaths from COVID-19, there is an increase in the concentration of D-dimer and fibrinogen degradation products. Thus, the severity of hemostasis disorders has an important prognostic value. Anticoagulant therapy is included in the list of all recommendations as an effective means of reducing mortality from COVID-19. The questions of the recommended groups and doses of anticoagulant drugs are still open. The approach to the choice of an anticoagulant should be based not only on risk factors, characteristics of the course of the disease, anamnesis, but also on the wishes of the patient during long-term therapy at the post-hospital stage.