High levels of cell-free hemoglobin and iron in cerebral thrombi of pre-Omicron COVID-19 stroke patients: novel drivers of SARS-CoV-2–induced prothrombotic state - Report - MDSpire
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Elevated concentrations of cell-free hemoglobin and iron found in cerebral thrombi of stroke patients prior to the Omicron variant: new contributors to the prothrombotic effects of SARS-CoV-2
Elevated concentrations of cell-free hemoglobin and iron found in cerebral thrombi
Overview
This study investigates the presence of elevated cell-free hemoglobin and iron in cerebral thrombi from stroke patients infected with SARS-CoV-2 prior to the Omicron variant.
Background
SARS-CoV-2 infection has been linked to an increased risk of cerebrovascular disease, particularly ischemic stroke. Understanding the pathophysiology of COVID-19-associated stroke is crucial, as it is associated with poorer outcomes and higher mortality rates compared to non-COVID-19 strokes. The study of cerebral thrombi provides insights into the molecular mechanisms underlying this hypercoagulable state.
Data Highlights
No specific numerical data or trial data was provided in the source material.
Key Findings
COVID-19 is associated with an increased risk of ischemic stroke, particularly during the acute phase of infection.
Cryptogenic etiology is common in COVID-19-related strokes, leading to worse clinical outcomes.
Elevated concentrations of cell-free hemoglobin and iron were found in cerebral thrombi from stroke patients.
COVID-19-related coagulopathy features increased D-dimer and thrombin generation, differing from typical disseminated intravascular coagulation.
Immunothrombosis plays a significant role in the pathophysiology of COVID-19-associated stroke.
Clinical Implications
The findings highlight the need for clinicians to consider the unique thrombotic profiles in COVID-19 patients when managing stroke.
Conclusion
The study examines the interplay between SARS-CoV-2 infection and cerebrovascular complications.
by María Payá, Cristian Alcahut-Rodríguez, Rosa A. Barbella-Aponte, Francisco Hernández-Fernández, Juan D. Molina-Nuevo, Gemma Barroso-García, Beatriz Castro-Robles, Susana López-López, Lourdes Arias-Salazar, Óscar Ayo-Martín, Jorge García-García, Blanca Yélamos-Sanz, Natalia García-Flores, Alba G. Arandilla, Rafael Moreno-Luna, Alicia Aliena-Valero, Isabel Vielba-Gómez, José I. Tembl, Juan B. Salom, Gemma Serrano-Heras, Tomás Segura
