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medRxiv PreprintsInternational7 October 2026

Intrathrombus NETosis Defines Prognostically Distinct Phenotypes in Large-Vessel Occlusion Stroke

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Background: Immunothrombosis is increasingly recognized in large-vessel-occlusion acute ischemic stroke (LVO-AIS), yet most biomarker studies infer thrombus biology from circulating neutrophil extracellular trap (NET) markers or from pre-defined thrombus subtypes. We prospectively studied 160 patients with anterior-circulation LVO-AIS treated with mechanical thrombectomy to determine whether intrathrombus NETosis markers identify thrombus phenotypes with distinct clinical trajectories, and whether plasma NETosis biomarkers reflect the molecular composition of thrombi. Methods: Thrombi underwen
— medRxiv Preprints
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