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Incidence of intracranial hemorrhagic complications after anterior circulation endovascular thrombectomy in relation to occlusion site: a nationwide observational register study
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  • Published on:
    Analysis of Intracranial Hemorrhagic Complications in Anterior Circulation Endovascular Thrombectomy

    To the Editor,

    I am writing to discuss the recent article titled "Incidence of intracranial hemorrhagic complications after anterior circulation endovascular thrombectomy in relation to occlusion site: a nationwide observational register study" (1). This study provides valuable insights into intracranial hemorrhage (ICH) as a potential complication of endovascular thrombectomy (EVT) in patients with anterior circulation vessel occlusion stroke. The authors conducted a comprehensive analysis, considering different occlusion sites and their associations with the incidence and severity of ICH, specifically symptomatic (sICH) and non-symptomatic (non-sICH) cases. While the study presents crucial findings, it is essential to discuss its implications and limitations.

    The study's key finding of a 4.5% incidence of sICH after EVT for anterior circulation vessel occlusion stroke is consistent with previous research in this area. The recognition of differences in the frequency and severity of ICH across occlusion sites, particularly in the internal carotid artery (ICA), middle cerebral artery's first segment (M1), and the M2 and beyond, is a significant contribution to our understanding of EVT outcomes. The study suggests that ICA occlusions, despite their lower overall hemorrhage frequency, tend to result in more severe ICH, including intraventricular hemorrhages and space-occupying intracerebral hemorrhages. This observation aligns with prior stud...

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    Conflict of Interest:
    None declared.