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  • Title: Intracranial Internal Carotid Artery Wall Calcification in Ischemic Strokes Treated with Thrombolysis.
    Author: Tábuas-Pereira M, Sargento-Freitas J, Silva F, Parra J, Mendes P, Seara V, Mesquita M, Baptista M, Cordeiro G, Cunha L.
    Journal: Eur Neurol; 2018; 79(1-2):21-26. PubMed ID: 29131095.
    Abstract:
    BACKGROUND: Calcifications are an important element of atherosclerotic plaques and have been used as a marker of atherosclerosis and clinical outcome predictor in different vascular territories. CT-scan, performed in the acute ischemic stroke setting, can reliably detect intracranial arterial calcifications. OBJECTIVES: To investigate the association between intracranial internal carotid artery calcification and functional outcome, symptomatic intracerebral hemorrhage (sICH), recanalization, and death. METHODS: We included 396 consecutive ischemic stroke patients submitted to recombinant tissue plasminogen activator treatment between January 2011 and September 2014. Admission CT-scans were reviewed to calculate the Total Carotid Syphon Calcification score. Patients were followed for up to at least 6 months post-stroke or until death. Outcome measures included evaluation of recanalization on the first 24 h (transcranial color coded Doppler or angio-CT), sICH, and assessment of functional outcome at 3 months after stroke (using modified Rankin scale). RESULTS: Carotid artery wall calcification did not predict sICH, recanalization or any good outcome. However, it was a statistically significant predictor of death (OR 1.102, 95% CI [1.004-1.211], p = 0.042). DISCUSSION: Intracranial carotid artery calcification does not increase the risk of thrombolysis-induced sICH. Patients with higher grade of carotid artery wall calcification may have a higher mortality rate.
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