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Updated: Jun 23, 2026
07:46
Bilateral Common Carotid Artery Occlusion as an Adequate Preconditioning Stimulus to Induce Early Ischemic Tolerance to Focal Cerebral Ischemia
Published on: May 9, 2013
Cerebral hyperperfusion syndrome post-carotid artery stenting
1Department of Interventional Neuroradiology, Royal Perth Hospital, Perth, Western Australia, Australia.
Journal of Medical Imaging and Radiation Oncology
|May 21, 2009
Summary
Cerebral hyperperfusion syndrome is a rare but serious complication after carotid artery stenting. Early stenting for severe stenosis may increase the risk of stroke or cerebral hemorrhage.
Area of Science:
- Neurology
- Vascular Surgery
Background:
- Cerebral hyperperfusion syndrome (CHS) is a recognized complication following carotid artery stenting (CAS) for severe internal carotid artery stenosis.
- This study investigates the incidence and characteristics of CHS after CAS.
Observation:
- A review of 170 CAS cases between 1999 and 2006 identified four patients who developed CHS.
- These included cerebral edema, petechial hemorrhage, and large intracerebral hemorrhages, with one fatality.
Findings:
- The overall risk of CHS was 2.3%.
- Patients experiencing large intracerebral hemorrhage presented within 6 hours and had CAS within 3 weeks of symptom onset for critical stenosis (≥95%).
- Early intervention in cases of critical stenosis appears to correlate with a higher risk of severe hemorrhage.
Implications:
- CHS is an uncommon yet significant risk associated with CAS.
- Further research comparing endarterectomy and CAS, particularly regarding early treatment timing, is warranted to optimize patient outcomes.
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