@article {Shahe3, author = {Kushal J Shah and Aaron M Jones and Paul M Arnold and Koji Ebersole}, title = {Republished: Intracranial pseudoaneurysm after intracranial pressure monitor placement}, volume = {8}, number = {1}, pages = {e3--e3}, year = {2016}, doi = {10.1136/neurintsurg-2014-011410.rep}, publisher = {British Medical Journal Publishing Group}, abstract = {Traumatic intracranial pseudoaneurysms are a rare but severe complication following arterial injury. Pseudoaneurysm formation can occur secondary to blunt or penetrating trauma or iatrogenic injury. We report a case of traumatic pseudoaneurysm secondary to placement of an intracranial pressure (ICP) monitor. A 27-year-old man was involved in a motorcycle accident resulting in multiple intracranial hemorrhages. The patient underwent craniectomy and placement of an ICP monitor. 17 days later he developed dilation of his left pupil, with imaging demonstrating a new hemorrhage in the vicinity of the previous ICP monitor. A cerebral angiogram confirmed a left-sided distal M4 pseudoaneurysm which was treated by n-butyl cyanoacrylate embolization. Intracranial pseudoaneurysm formation following neurosurgical procedures is uncommon. Delayed intracranial hemorrhage in a region of prior intracranial manipulation, even following a procedure as {\textquoteleft}routine{\textquoteright} as placement of an ICP monitor, should raise the suspicion for this rare but potentially lethal complication.}, issn = {1759-8478}, URL = {https://jnis.bmj.com/content/8/1/e3}, eprint = {https://jnis.bmj.com/content/8/1/e3.full.pdf}, journal = {Journal of NeuroInterventional Surgery} }