BACKGROUND AND PURPOSE: We tested the hypothesis that proteins of hemostasia could be associated with hematoma growth (HG) in patients with acute intracerebral hemorrhage. METHODS: We prospectively studied patients with spontaneous supratentorial intracerebral hemorrhage within the first 6 hours after the onset of symptoms. HG was defined as an increase > 33% in the volume of hematoma on CT obtained 24 to 72 hours after the onset of symptoms in comparison with the CT obtained at admission. We collected admission and follow-up blood samples. We measured fibrinogen, factor XIII, thrombin activatable fibrinolysis inhibitor, plasminogen activator inhibitor, plasminogen, α₂-antiplasmin, tissue plasminogen activator, d-dimer, thrombomodulin, thrombin-antithrombin complex, and plasmin-antiplasmin complex. RESULTS: We included 90 patients with a mean age of 71 ± 10.8 years; 61% were men. HG was observed in 35 (39%) of the patients. Mean baseline and follow-up protein measurements showed no difference between the groups with and without HG. The analysis of variance showed that factor XIII activity decreased in the non-HG group in the 24 to 72 hours sample, whereas it increased in the HG group (P = 0.001). CONCLUSIONS: Factor XIII was the only measured protein related to HG. The levels at the follow-up sample decreased in the non-HG group and increased in the HG group. Further studies are needed to confirm this association.
BACKGROUND AND PURPOSE: We tested the hypothesis that proteins of hemostasia could be associated with hematoma growth (HG) in patients with acute intracerebral hemorrhage. METHODS: We prospectively studied patients with spontaneous supratentorial intracerebral hemorrhage within the first 6 hours after the onset of symptoms. HG was defined as an increase > 33% in the volume of hematoma on CT obtained 24 to 72 hours after the onset of symptoms in comparison with the CT obtained at admission. We collected admission and follow-up blood samples. We measured fibrinogen, factor XIII, thrombin activatable fibrinolysis inhibitor, plasminogen activator inhibitor, plasminogen, α₂-antiplasmin, tissue plasminogen activator, d-dimer, thrombomodulin, thrombin-antithrombin complex, and plasmin-antiplasmin complex. RESULTS: We included 90 patients with a mean age of 71 ± 10.8 years; 61% were men. HG was observed in 35 (39%) of the patients. Mean baseline and follow-up protein measurements showed no difference between the groups with and without HG. The analysis of variance showed that factor XIII activity decreased in the non-HG group in the 24 to 72 hours sample, whereas it increased in the HG group (P = 0.001). CONCLUSIONS: Factor XIII was the only measured protein related to HG. The levels at the follow-up sample decreased in the non-HG group and increased in the HG group. Further studies are needed to confirm this association.
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