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Covid-19 Associated Thrombotic Thrombocytopenic Purpura (Ttp); a Case Series and Mini-Review Publisher Pubmed



Tehrani HA1 ; Darnahal M1 ; Vaezi M2 ; Haghighi S1
Authors
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Authors Affiliations
  1. 1. Department of Hematology and Medical Oncology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  2. 2. Hematology-Oncology and Stem Cell Transplantation Research Center, Tehran University of Medical Sciences, Tehran, Iran

Source: International Immunopharmacology Published:2021


Abstract

Introduction: Thrombotic microangiopathies are a group of disorders that are mainly related to endothelial dysfunction. This category of endothelial dysfunction results of several imbalances between platelets, endothelium and immune system, also cytokine production. Aim of this study: To report cases with thrombotic thrombocytopenic purpura (TTP) and COVID-19 and review COVID-19 endothelial dysfunction literature. Methods: Primary laboratory data, peripheral blood smear, ADAMTS13 antigen activity level, and antibody ordered for each of these four patients. Treatments for COVID-19 administered for all patients. Traditional treatments for TTP also were administered. Results: There were numerous schistocytes (more than 5%) in peripheral blood smears for each patient. ADAMTS13 antigen activity level was below 10%, and ADAMTS13 antibody was elevated for each patient. COVID-19 PCR was positive for all patients, and CT-Scans were indicative of the involvement of COVID-19. Conclusion: In this case series, we reported four COVID-19 patients who presented with signs and symptoms of anemia and thrombocytopenia, resulting in thrombotic thrombocytopenic purpura. © 2021 Elsevier B.V.
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