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Fibrinolytic activity after subarachnoid haemorrhage and the effect of tranexamic acid

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Summary

Seventy-four patients with recent subarachnoid haemorrhage were randomly allocated to placebo or tranexamic acid treatment. Fibrinolytic activity in the blood and cerebrospinal fluid was assessed before treatment, one week later and two weeks later. The natural history of fibrinolysis following subarachnoid haemorrhage was obtained from analysis of the placebo group.

Following subarachnoid haemorrhage, fibrin degradation products and plasminogen activity in the cerebrospinal fluid were elevated. Subsequently, fibrin degradation products in the cerebrospinal fluid fell progressively over the following 2 weeks. Changes in cerebrospinal fluid plasminogen activity correlated with those of blood plasminogen activity.

Complications such as rebleeding, hydrocephalus or cerebral thrombosis could not be predicted from analysis of fibrinolytic activity. Tranexamic acid treatment resulted in a reduction in cerebrospinal fluid and blood plasminogen activity. The relevance of fibrinolysis in cerebrospinal fluid and blood to the management of subarachnoid haemorrhage is discussed.

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  1. Midland Centre for Neurosurgery and Neurology, Smethwick, Warley, West Midlands, UK

    S. A. Tsementzis, W. P. Honan, S. Nightingale, E. R. Hitchcock & C. H. A. Meyer

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  1. S. A. Tsementzis
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  2. W. P. Honan
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  3. S. Nightingale
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  4. E. R. Hitchcock
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  5. C. H. A. Meyer
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Tsementzis, S.A., Honan, W.P., Nightingale, S. et al. Fibrinolytic activity after subarachnoid haemorrhage and the effect of tranexamic acid. Acta neurochir 103, 116–121 (1990). https://doi.org/10.1007/BF01407517

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