Disturbances of the coagulatory system in patients with severe cerebral trauma. I

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Abstract
This is an investigation into thromboplastin time, partial thromboplastin time, plasma thrombin time, fibrinogen, and platelets in 30 patients with severe brain injury over 7–14 days. Platelets showed a very marked initial decrease and a slow return to normal around the seventh day. Fibrinogen was initially lowered in most of the cases, and raised from the second day onward. Changes in the other laboratory values were less definite. Latent signs of consumption coagulopathy were not accompanied by bleeding disorders, or by disseminated intravascular coagulation at autopsy. The severity of laboratory value changes clearly correlated with the extent of brain damage, and was significantly higher when the patient did not survive the first week after injury.

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