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CASE REPORT
Intracranial pseudoaneurysm after intracranial pressure monitor placement
  1. Kushal J Shah1,
  2. Aaron M Jones2,
  3. Paul M Arnold2,
  4. Koji Ebersole2
  1. 1Department of Neurosurgery, University of Kansas Medical Center, Kansas City, Kansas, USA
  2. 2Department of Neurosurgery, University of Kansas, Kansas City, Kansas, USA
  1. Correspondence to Dr Koji Ebersole, Department of Neurosurgery, University of Kansas, 700 East 8th Street, Kansas City, KS 64106, USA; kebersole{at}kumc.edu

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 ‘routine’ as placement of an ICP monitor, should raise the suspicion for this rare but potentially lethal complication.

  • Aneurysm
  • Vessel Wall
  • Complication
  • Hemorrhage
  • Intracranial Pressure

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