rivaroxaban and Disseminated-Intravascular-Coagulation

Analysis of the pathogenesis of coronavirus infection caused SARS-CoV-2 indicates a significant impact of hemorheological disorders on its course and outcomes. It is known that chronic cardiovascular diseases are associated with the risk of severe course and lethal outcomes both in COVID-19 and other infectious diseases. Therefore, in each case it is necessary to study the interaction and mutual influence of different components of the treatment program prescribed to such patients.The purpose of this work was to evaluate the effect of coagulation activity on the course of a novel coronavirus infection (COVID-19) and to justify the management of comorbid patients having been received novel oral anticoagulants (NOACs) in previously selected doses according to indications in concomitant somatic diseases.. Total 76 cases of confirmed coronavirus infection in patients who had been received initial therapy on an outpatient basis were analyzed. 26 patients who received NOACs (rivaroxaban, apixaban, dabigatran) made up the main group and 50 - the comparison (control) group in which patients had not been administered any drugs that affect blood clotting until the episode of COVID-19. All patients have been prescribed therapy following the Provisional guidelines «Prevention, diagnosis and treatment of coronavirus infection (COVID-19)» (https://static-0.minzdrav.gov.ru/system/attachments/attaches/).. The number of hospitalizations was significantly fewer in the group of patients who had been received NOACs (19 vs. 66% in the control group). No deaths or cases of severe respiratory and/or renal failure were observed in the main group, while adverse outcomes were noted in 14% of patients who had not been administered these drugs.. Taking NOACs reduces the probability of severe course and adverse outcomes in the development of coronavirus infection caused by SARS-CoV-2, which indicates a significant contribution of coagulation mechanisms to the pathogenesis in COVID-19. There were no indications for drug replacement and correction of anticoagulant therapy regimens in patients who received adequate therapy with oral anticoagulants for treating a non-severe form of coronavirus infection in ambulatory patient settings.

Topics: Acetylcysteine; Aged; Aged, 80 and over; Anticoagulants; Antiviral Agents; Atrial Fibrillation; Azithromycin; Cohort Studies; Comorbidity; Coronary Disease; COVID-19; COVID-19 Drug Treatment; Dabigatran; Disseminated Intravascular Coagulation; Female; Humans; Hypertension; Indoles; Interferon alpha-2; Intracranial Arteriosclerosis; Male; Middle Aged; Pyrazoles; Pyridones; Rivaroxaban; SARS-CoV-2; Severity of Illness Index; Survival Analysis

An amniotic fluid embolism (AFE) is a rare, lethal syndrome that is commonly associated with disseminated intravascular coagulation (DIC). Anticoagulation therapy is the most important strategy to inhibit excessive activation of the coagulation cascade in patients with AFE and DIC. At present, treatment of AFE with rivaroxaban has not been reported.. We report a 37-year-old woman (gravida 2, para 1) at 39 weeks' gestation with irregular contractions of the uterus was admitted to the obstetrical department. Ten minutes after the spontaneous rupture of the membranes, the patient complained of dyspnea and dysphoria and exhibited cyanosis of her lips. The patient's blood pressure decreased and heart rate increased rapidly, and 2100 mL of unclotted blood flowed from her vagina within 1 hour. Her platelet count dropped to 21 × 10/L, and the results from routine coagulation tests, and D-dimer and fibrin degradation product tests were obviously abnormal.. According to the current research consensus, AFE with DIC should be considered immediately when sudden cardiovascular collapse occurs around the time of labor and delivery, followed by the development of coagulopathy and hemorrhage.. In addition, the variety of supportive treatments, rivaroxaban was used in anticoagulant therapy.. At follow-up 30 and 60 days, there were no complaints of discomfort or abnormal laboratory assays. The patient recovered completely.. This case highlights that rivaroxaban, as a direct inhibitor of activated factor Xa, demonstrates a good therapeutic efficacy for treating AFE with DIC.

Topics: Adult; Disseminated Intravascular Coagulation; Embolism, Amniotic Fluid; Erythrocyte Transfusion; Factor Xa Inhibitors; Female; Humans; Pregnancy; Rivaroxaban; Treatment Outcome

We describe a case in which uncontrolled chronic disseminated intravascular coagulation (DIC) caused by an aortic aneurysm that was exacerbated by chemotherapy for lung cancer, showed dramatic improvement when warfarin, which was being administered for atrial fibrillation, was replaced by rivaroxaban, a direct oral anticoagulant (DOAC). The present case is interesting because a DOAC was effective in treating DIC due to an aortic aneurysm, whereas warfarin, another oral anticoagulant, was ineffective. In controlling DIC, it is important to inhibit activated coagulation factors such as thrombin and activated factor X, rather than the coagulation factors, which act as substrates.

Topics: Aged; Anticoagulants; Antineoplastic Agents; Aortic Aneurysm; Atrial Fibrillation; Disseminated Intravascular Coagulation; Humans; Lung Neoplasms; Male; Rivaroxaban; Warfarin

A 67-year-old man with non-valvular atrial fibrillation (AF) and previous myocardial and cerebral infarctions had uncontrollable bleeding after undergoing dental extraction because of an exacerbation of chronic disseminated intravascular coagulation (DIC) due to an abdominal aortic aneurysm. After successful treatment of the bleeding with the transfusion of fresh frozen plasma and platelets, nafamostat mesilate was used to treat the chronic DIC. Finally, rivaroxaban (an oral direct Factor Xa inhibitor) was prescribed for chronic DIC, as well as non-valvular AF. Following the initiation of rivaroxaban, the chronic DIC gradually improved, and the patient was discharged.

Topics: Aged; Anticoagulants; Aortic Aneurysm, Abdominal; Benzamidines; Blood Platelets; Blood Transfusion; Disseminated Intravascular Coagulation; Guanidines; Humans; Male; Rivaroxaban; Tooth Extraction

The localized activation of coagulation in vascular malformations can lead to a consumptive coagulopathy characterized by elevated D-dimers and a consumption of fibrinogen and platelets, eventually giving rise to a bleeding tendency. By reducing coagulation activation, anticoagulant treatment with heparin is able to limit this haemostatic dysregulation and the associated bleeding diathesis. Here, we present a case of a consumptive coagulopathy due to a large venous malformation with a sustained correction of the fibrinogen depletion and associated bleeding tendency both with subcutaneous enoxaparin and with the oral factor Xa inhibitor rivaroxaban.

Topics: Administration, Oral; Adult; Disseminated Intravascular Coagulation; Factor Xa Inhibitors; Fibrin Fibrinogen Degradation Products; Humans; Male; Morpholines; Rivaroxaban; Thiophenes; Vascular Malformations

Topics: Aged; Anticoagulants; Aortic Aneurysm, Thoracic; Aortic Dissection; Disseminated Intravascular Coagulation; Humans; Male; Morpholines; Rivaroxaban; Thiophenes

The diagnosis of the antiphospholipid syndrome (APS) is based on clinical and biological criteria including the persistent presence of antiphospholipid antibodies and thrombotic events or pregnancy morbidity. Heparins relayed by vitamin K antagonists (VKA) are the gold standard treatment for thrombosis.. We report a 17-year-old man who presented with an initially seronegative antiphospholipid syndrome, in whom the diagnosis was late, only obtained after anticoagulation withdrawing, when a catastrophic antiphospholipid syndrome (CAPS) with cutaneous lesions and disseminated intravascular coagulation syndrome occurred. For personal convenience, this patient was initially treated with fondaparinux followed by a new oral anticoagulant (rivaroxaban) before to return to the conventional VKA treatment.. The "seronegative" APS is a controversial concept reflecting the heterogeneity of antigenic targets for aPL. This diagnosis may be considered after a rigorous work-up, with the help of haemostasis laboratories testing new emerging aPL assays. In APS, the new anticoagulants represent an attractive option needing nevertheless prospective studies to evaluate their safety and efficacy. Lupus anticoagulant detection in patients treated by new oral anticoagulants is not easy by usually recommended coagulation tests.

Topics: Adolescent; Antibodies, Antiphospholipid; Anticoagulants; Antiphospholipid Syndrome; Disseminated Intravascular Coagulation; Factor Xa Inhibitors; Fondaparinux; Humans; Male; Morpholines; Polysaccharides; Rivaroxaban; Thiophenes

Klippel-Trénaunay syndrome (KTS) is a rare congenital anomaly characterized by malformation of lymph and blood vessels as well as growth disturbance of soft tissue and bone. The clinical picture is variable and associated with an increased risk of thromboembolic events mediated by intravascular coagulopathy in venous malformations. Here, we report on a male patient with KTS suffering from recurrent deep vein thrombosis (DVT) and life-threatening bleeding due to consumptive coagulopathy. Furthermore, we describe the successful long-term anticoagulant management with rivaroxaban.

Topics: Adolescent; Anticoagulants; Disseminated Intravascular Coagulation; Factor Xa; Humans; Klippel-Trenaunay-Weber Syndrome; Male; Morpholines; Rivaroxaban; Thiophenes