title: Cerebral vasoconstriction in vasovagal syncope: any link with symptoms? A transcranial Doppler study.
authors.forename: Brian J
authors.initials: BJ
authors.lastname: Carey
authors.forename: John F
authors.initials: JF
authors.lastname: Potter
authors.forename: Ronney B
authors.initials: RB
authors.lastname: Panerai
mesh_terms: D001783:Blood Flow Velocity; D001794:Blood Pressure; D002560:Cerebrovascular Circulation / Q000502:physiology; D018450:Disease Progression; D006801:Humans; D006985:Hyperventilation / Q000150:complications / Q000503:physiopathology; D016857:Hypocapnia / Q000209:etiology; D011673:Pulsatile Flow; D012016:Reference Values; D019462:Syncope, Vasovagal / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology*; D018667:Tilt-Table Test; D017585:Ultrasonography, Doppler, Transcranial; D014655:Vascular Resistance; D014661:Vasoconstriction / Q000502:physiology