title: Hyperperfusion syndrome after stent placement for subclavian artery stenosis: case report.
abstract: A 60-year-old woman presented with a rare case of hyperperfusion syndrome after stent placement for subclavian artery stenosis manifesting as dizziness due to vertebrobasilar insufficiency. Three days after undergoing stent placement to treat the severely stenotic (90%) right subclavian artery, she suffered intracranial hemorrhage related to hyperperfusion syndrome. Preoperative single-photon emission computed tomography findings of low cerebral perfusion and poor perfusion reserve might indicate the possibility of hyperperfusion syndrome after stenting in patients with subclavian artery stenosis.
authors.affiliation: Department of Neurosurgery, Chubutokushukai Hospital, Okinawa, Okinawa.
authors.forename: Koichi
authors.initials: K
authors.lastname: Ito
authors.forename: Hirokatsu
authors.initials: H
authors.lastname: Yonaha
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Kai
authors.forename: Yohei
authors.initials: Y
authors.lastname: Hokama
authors.forename: Hideki
authors.initials: H
authors.lastname: Nagamine
authors.forename: Tomoo
authors.initials: T
authors.lastname: Miyagi
authors.forename: Takashi
authors.initials: T
authors.lastname: Watanabe
authors.forename: Shogo
authors.initials: S
authors.lastname: Ishiuchi
mesh_terms: D002533:Cerebral Angiography; D005260:Female; D006801:Humans; D006940:Hyperemia / Q000175:diagnosis / Q000209:etiology*; D020300:Intracranial Hemorrhages / Q000175:diagnosis / Q000209:etiology*; D018810:Magnetic Resonance Angiography; D008875:Middle Aged; D012307:Risk Factors; D015607:Stents; D013349:Subclavian Steal Syndrome / Q000175:diagnosis / Q000628:therapy*; D013577:Syndrome; D019690:Technetium Tc 99m Exametazime; D015899:Tomography, Emission-Computed, Single-Photon; D014057:Tomography, X-Ray Computed; D014715:Vertebrobasilar Insufficiency / Q000175:diagnosis / Q000628:therapy
chemical_list: D019690:Technetium Tc 99m Exametazime