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AJNR Am J Neuroradiol. 2001 Sep;22(8):1597-601.

Hyperperfusion syndrome with hemorrhage after angioplasty for middle cerebral artery stenosis.

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  • 1Department of Radiology, Stanford Stroke Center, Stanford University School of Medicine, Stanford, CA, USA.


Hyperperfusion syndrome is a well-documented complication of carotid endarterectomy, as well as internal carotid artery angioplasty and stent placement. We report a similar complication after distal intracranial (middle cerebral artery [MCA] M2 segment) angioplasty. To our knowledge, this is the first report of hyperperfusion syndrome after intracranial angioplasty of a distal MCA branch.

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