Abstract
Background and Purpose: Intracerebral hemorrhage can occur in acute ischemic stroke patients receiving alteplase (recombinant tissue plasminogen activator). Antifibrinolytic medications such as the synthetic lysine analogs tranexamic acid and ε;-aminocaproic acid that inhibit fibrinolysis by attaching to the lysine-binding site of the plasminogen molecule have been utilized. However, the efficacy of antifibrinolytic medication in prevention of hematoma expansion is not known. Methods: We analyzed the effect of antifibrinolytic medication in acute ischemic stroke patients with intracerebral hemorrhage associated with Alteplase from 2012 to 2017. The Region-of-Interest method on a Horos Open Source Medical Image Viewer (Version 3.3.6) was utilized for volume measurement. We compared the change in hemorrhage volume in patients who did and did not receive antifibrinolytic medication. Results: A total of 36 patients (mean age 72.7±11.5, 56% were men) who received intravenous alteplase with subsequent intracerebral hemorrhage were identified. Fourteen patients received antifibrinolytic treatment; five patients had reduction or stabilization in hematoma volume (overall pre-treatment volume 13.87±15.74 cm 3 and post-treatment volume 16.74±29.67 cm 3 ). Mean fibrinogen level in the antifibrinolytic medication group was 297 mg/dL; two patients had levels < 200 mg/dL. In the cohort of patients did not receive antifibrinolytics, 15 out of 22 patients had reduction or stabilization in hematoma volume (overall pre-treatment volume 19.25±33.33 cm 3 and post-treatment volume 17.41±26.56 cm 3 ). Mean volume difference in the group that received antifibrinolytic medication was 36% and 9% in the group that did not receive antifibrinolytic medication. [Figure 1] Conclusion: We did not identify any advantage of antifibrinolytic treatment in reduction or stabilization in hematoma volume in patients with Alteplase-associated intracerebral hemorrhages.
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