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?:abstract
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The causes of coagulopathy associated with COVID-19 disease are poorly understood. We aimed to investigate the relationship between markers of endothelial activation, intravascular hemolysis, coagulation, and organ damage in COVID-19 patients and study their association with disease severity and mortality. We conducted a retrospective study of 181 hospitalized COVID-19 patients randomly selected with equal distribution of survivors and non-survivors. Patients who died had significantly lower ADAMTS13 activity, significantly higher LDH, schistocytes and von Willebrand Factor levels compared to patients discharged alive. Only 30% of patients with an initial ADAMTS13 activity <43% survived vs. 60% with ADAMTS13 ≥43% who survived. In conclusion, COVID-19 may manifest as a TMA-like illness in a subset of hospitalized patients. Presence of schistocytes on admission may warrant a work-up for TMA. These findings indicate the need for future investigation to study the relationship between endothelial and coagulation activation and the efficacy of TMA treatments in COVID-19.
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?:doi
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10.1101/2020.10.20.20215608
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document_parses/pdf_json/12e69e3229fa701778c9611edbe380ffc1c9e6c1.json; document_parses/pdf_json/3fe4f65dffe5f750f64103d4bcedb03928f4a509.json
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document_parses/pmc_json/PMC7587832.xml.json
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?:pmid
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?:sha_id
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MedRxiv; Medline; PMC; WHO
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Evidence for secondary thrombotic microangiopathy in COVID-19
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