title: Cerebral blood flow dynamics of orthostatic transient ischemic attacks in a patient with carotid dissection and fibromuscular dysplasia.
abstract: In patients with critical carotid stenosis and ischemic stroke, it is crucial to determine whether distal hypoperfusion or artery-to-artery embolism is the predominant mechanism. The role of transcranial doppler (TCD) in this setting is vital. We report a patient with fibromuscular dysplasia and recurrent orthostatic transient ischemic attacks where fall in cerebral perfusion was clearly demonstrated by TCD.
authors.affiliation: Stroke Program, Division of Neurology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada.
authors.forename: Deepak
authors.initials: D
authors.lastname: Gupta
authors.forename: Carol
authors.initials: C
authors.lastname: Derksen
authors.forename: Maher
authors.initials: M
authors.lastname: Saqqur
authors.forename: Khurshid
authors.initials: K
authors.lastname: Khan
authors.forename: Thomas
authors.initials: T
authors.lastname: Jeerakathil
authors.forename: Ashfaq
authors.initials: A
authors.lastname: Shuaib
mesh_terms: D001783:Blood Flow Velocity; D020215:Carotid Artery, Internal, Dissection / Q000150:complications / Q000175:diagnosis / Q000503:physiopathology*; D002560:Cerebrovascular Circulation; D004244:Dizziness / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology*; D005352:Fibromuscular Dysplasia / Q000150:complications / Q000000981:diagnostic imaging / Q000503:physiopathology*; D006801:Humans; D002546:Ischemic Attack, Transient / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D018608:Ultrasonography, Doppler / Q000379:methods*