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Cerebrovascular Reactivity Assessed by Changes in ICP and Transcranial Doppler

  • K. Bandoh
  • C. B. Zerate
  • M. Yoshihara
  • A. Marmarou
Conference paper

Abstract

The ability to control ICP following traumatic head injury depends in part on cerebrovascular reactivity (CVR). By definition, cerebrovascular reactivity is defined as the change in blood flow (CBF) per torr change in PCO2. With regard to ICP control, it is the concomitant reduction in blood volume achieved in response to hyperventilation which remains a potent therapeutic tool in the patient with raised intracranial pressure. However, with traumatic injury, vascular reactivity may be reduced thus compromising the volume compensatory response for ICP reduction as well as altering dynamics of cerebral blood flow. Thus, a quantitative measure of cerebrovascular reactivity is important to help determine the underlying mechanisms leading to metabolic crisis and pressure/volume instability following severe head injury.

Keywords

Vascular Reactivity Severe Head Injury Post Injury Metabolic Crisis Traumatic Head Injury 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Marmarou A, Wachi A (1989) Blood Volume Responsivity to ICP Change in Head Injured Patients. In: Hoff JT, Betz AL (eds) Intracranial pressure VLL. Springer, Berlin Heidelberg New York London Paris Tokyo Hong Kong, pp 688–690Google Scholar
  2. 2.
    Aaslid R, Markwalder TM, Nornes H (1982) Noninvasive Transcranial Doppler Ultrasound recording of flow velocity in basal cerebral arteries. J Neurosurg 57:769–774PubMedCrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1993

Authors and Affiliations

  • K. Bandoh
    • 1
  • C. B. Zerate
    • 1
  • M. Yoshihara
    • 1
  • A. Marmarou
    • 1
  1. 1.Division of NeurosurgeryMedical Collage of VirginiaRichmondUSA

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