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  • Title: Imaging studies of cerebral hyperperfusion after carotid endarterectomy. Case report.
    Author: Penn AA, Schomer DF, Steinberg GK.
    Journal: J Neurosurg; 1995 Jul; 83(1):133-7. PubMed ID: 7782830.
    Abstract:
    A case is reported of severe unilateral hemispheric edema and localized hemorrhage associated with seizures following endarterectomy of an ipsilateral high-grade carotid stenosis. Imaging studies including angiography, computerized tomography (CT), magnetic resonance imaging/angiography, and xenon-CT, suggested postoperative ipsilateral cerebral hyperperfusion. Cerebral hyperperfusion syndromes caused by a probable failure of vascular autoregulation are rare but potentially serious complications after endarterectomy. The literature on this type of complication is briefly reviewed, and the role of various imaging modalities in identification of the syndrome and in guiding management decisions is emphasized.
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