title: Hyperperfusion syndrome after stenting for intracranial vertebral stenosis.
abstract: OBJECTIVE
  Hyperperfusion syndrome is a rare but well-described complication after endarterectomy or stenting in the carotid circulation.
  
  
  METHODS
  A 66-year-old man who had vertebrobasilar insufficiency refractory to medical treatment because of an intracranial right side vertebral stenosis was referred to our institution for endovascular treatment. Stenting was performed, and after 24 hours, he became extremely agitated, and this was followed by a period of apathy without focal neurological deficits. MRI showed bilateral thalamic hemorrhage.
  
  
  CONCLUSIONS
  To our knowledge, this is the first report of hyperperfusion syndrome with hemorrhagic presentation after intracranial vertebral artery stenting.
authors.affiliation: Department of Interventional Neuroradiology, Fondation Rothschild, Paris, France.
authors.forename: Marco Túlio
authors.initials: MT
authors.lastname: Rezende
authors.forename: Laurent
authors.initials: L
authors.lastname: Spelle
authors.forename: Charbel
authors.initials: C
authors.lastname: Mounayer
authors.forename: Michel
authors.initials: M
authors.lastname: Piotin
authors.forename: Daniel Giansante
authors.initials: DG
authors.lastname: Abud
authors.forename: Jacques
authors.initials: J
authors.lastname: Moret
mesh_terms: D000368:Aged; D000792:Angiography; D017130:Angioplasty; D000925:Anticoagulants / Q000494:pharmacology; D001921:Brain / Q000473:pathology; D016893:Carotid Stenosis / Q000175:diagnosis*; D003251:Constriction, Pathologic; D016894:Endarterectomy, Carotid; D006470:Hemorrhage / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D010477:Perfusion; D015427:Reperfusion Injury; D012307:Risk Factors; D013131:Spine / Q000473:pathology*; D013577:Syndrome; D013788:Thalamus / Q000473:pathology; D013997:Time Factors; D014715:Vertebrobasilar Insufficiency / Q000175:diagnosis / Q000473:pathology
chemical_list: D000925:Anticoagulants