Traumatic injury of dural venous sinus as cause of epidural hematoma: importance of recognition and adequate surgical planning

Abstract

Background: Although most traumatic epidural hematomas are secondary to arterial injuries, particularly rupture of the middle meningeal artery, around 9.7% of cases are associated with dural venous sinus injury, leading to poorer prognosis and greater complications. We report a case of a patient presenting cranial trauma with bone fracture and laceration of the transverse sinus producing epidural hematoma, and discuss the main aspects of this condition. Case description: A 47-year-old man struck by a motorcycle was admitted to the Emergency Room with a score of 15 on the Glasgow Coma Scale, evolving over 5 hours with reduced level of consciousness. A cranial CT scan was performed disclosing right parieto- occipital hyperdensity, consistent with acute epidural hematoma, and a parieto-occipital fracture line crossing the path of the ipsilateral transverse sinus. Parietal craniotomy was performed to drain the hematoma, revealing a venous sinus injury requiring immediate repair. Conclusions: This case and discussion highlight the many details and technical specificities to be taken into account by neurosurgeons when encountering intracranial hematoma caused by traumatic injury of the dural venous sinus, and which are pivotal in determining the efficacy of the treatment approach and prognosis of the patient.