Traumatic Intracranial Aneurysms

Traumatic aneurysm resulting from insertion of an intracranial pressure monitor

“…1,2 Intracranial hemorrhage at the time of the inciting event has only been noted in two thirds of cases. 1,2 Postoperative hemorrhage leading to diagnosis has occurred, on average, 81 days later, if a single case presenting 16 years later is excluded. The reported mortality rate is 14%.…”

“…The reported mortality rate is 14%. 1,2 The inciting pathophysiological event is direct injury to one or more layers of the arterial wall. We postulate that in the present case, the needle used to open the dura mater or the ICP monitor itself lacerated all layers of the arterial wall.…”

Pediatric Traumatic Intracranial Aneurysms

“…As well, traumatic intracranial aneu rysms are recognized to be rare, comprising less than 0.5% of all intracranial aneurysms in a large hospital series spanning roughly 20 years [4], However, roughly one fourth of the reported traumatic aneurysms have involved pediatric patients [5]. Such numbers indicate that either traumatic intracranial aneurysms are more common in the pediatric versus the adult population [3,6] or that some bias exists for reporting such aneurysms in children as compared to adults.…”