めまい患者へのTCDの臨床応用 : 炭酸ガス反応性の検討 Clinical Application of TCD in Patients with Vertigo : CO_2 Reactivity

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The response of cerebral blood flow to changes in the carbon dioxide partial pressure (i.e., CO<SUB>2 </SUB>reactivity) has been evaluated as a parameter of cerebral perfusion reserve in patients with vertigo by transcranial Doppler ultrasonography (TCD).<BR>We have examined the mean blood flow velocity (FV), and CO<SUB>2</SUB> reactivity of basilar artery (BA) by TCD. Nine patients with cerebral infarction, 46 patients with vertebrobasilar insufficiency (VBI) (17 vascular VBI and 29 hemodynamic VBI), 29 patients with peripheral vertigo, 46 patients with vertigo of unknown origin and 14 normal subjects were enrolled in this study.<BR>CO<SUB>2</SUB> reactivity in patients with cerebral infarction and vascular VBI was significantly lower than that in normal subjects.<BR>These findings demonstrate that CO<SUB>2</SUB> reactivity measured by TCD evaluates the insufficiency of cerebral circulation in vertigo patients.

収録刊行物

  • Equilibrium research

    Equilibrium research 57(4), 408-412, 1998-08-01

    Japan Society for Equilibrium Research

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各種コード

  • NII論文ID(NAID)
    10008711335
  • NII書誌ID(NCID)
    AN00001485
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03855716
  • データ提供元
    CJP書誌  J-STAGE 
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