Cases of epidural haematoma of nonarterial origin differ from the more common arterial-origin epidural haematomas with respect to lesion location, surgical planning, postoperative complications, and outcome. Epidural haematoma of nonarterial origin should be suspected if preoperative CT shows a haematoma overlying a dural venous sinus or in the posterior fossa and convexity. The sinus-origin group had a high frequency of fractures which crossed the sinuses, and this might be diagnostically and surgically useful in such cases.
This study indicates that single and short-term use of EVD and/or early VP shunting are associated with a low risk of infection. Furthermore, early VP shunting may protect the brain from the irregular control of intracranial hypertension and may allow more time for resolution of CSF circulation and significantly lowers the mortality rates.
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