RESUMO
The SARS-CoV-2 virus caused a global pandemic within weeks, causing hundreds of thousands of people infected. Many patients with severe COVID-19 present with coagulation abnormalities, including increase D-dimers and fibrinogen. This coagulopathy is associated with an increased risk of death. Furthermore, a substantial proportion of patients with severe COVID-19 develop sometimes unrecognized, venous, and arterial thromboembolic complications. A better understanding of COVID-19 pathophysiology, in particular hemostatic disorders, will help to choose appropriate treatment strategies. A rigorous thrombotic risk assessment and the implementation of a suitable anticoagulation strategy are required. We review here the characteristics of COVID-19 coagulation laboratory findings in affected patients, the incidence of thromboembolic events and their specificities, and potential therapeutic interventions.
Assuntos
Anticoagulantes/administração & dosagem , Transtornos da Coagulação Sanguínea/epidemiologia , Infecções por Coronavirus/epidemiologia , Mortalidade Hospitalar , Pneumonia Viral/epidemiologia , Embolia Pulmonar/epidemiologia , Trombose Venosa/epidemiologia , Transtornos da Coagulação Sanguínea/tratamento farmacológico , Transtornos da Coagulação Sanguínea/fisiopatologia , COVID-19 , Comorbidade , Infecções por Coronavirus/diagnóstico , Infecções por Coronavirus/terapia , Feminino , Produtos de Degradação da Fibrina e do Fibrinogênio/análise , Humanos , Incidência , Masculino , Pandemias , Pneumonia Viral/diagnóstico , Pneumonia Viral/terapia , Embolia Pulmonar/tratamento farmacológico , Embolia Pulmonar/fisiopatologia , Medição de Risco , Índice de Gravidade de Doença , Análise de Sobrevida , Trombose Venosa/tratamento farmacológico , Trombose Venosa/fisiopatologiaRESUMO
Philadelphia or BCR-ABL positive acute lymphoblastic leukemia (PH+ ALL) is the most common and severe of adult ALL. The only potentially curator treatment remains allogeneic hematopoietic stem cells transplantation (SCT) in first complete remission. The use of imatinib has revolutionized the treatment of chronic myeloid leukemia. Its incorporation into PH + ALL protocols also improved the prognosis of this disease giving better complete remission rates compared to chemotherapy alone. The treatment of patients not eligible for SCT remains controversial. Prolonged use of high dose tyrosine kinase inhibitors (TKI) (ie: imatinib at 600 or 800 mg/j) as maintenance therapy seems to be a reasonable approach. We present a case of prolonged molecular remission of PH+ ALL under TKI alone as maintenance therapy.