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Discrepancies Between Autoregulation and CO2 Reactivity of Cerebral Vessels

  • C. Fieschi
  • A. Agnoli
  • L. Bozzao
  • N. Battistini
  • M. Prencipe

Abstract

The problem of the “discrepancies” that we raised at the Bonn and Lund Symposia in 1968, can be expressed by saying that a rigorous separation between entirely “good” and “bad” vessels does not often hold in practice. When studying CBF in brain disease one should therefore qualify the concept of “vasoparalysis”, in terms of:
  1. a).

    the stimulus employed to test it; b) the threshold chosen to separate normal and abnormal responses, and the statistical basis for choosing such a threshold. Beside the errors of the method one should consider that the stimuli are seldom pure, since some COg change usually accompanies changes in blood pressure and specially - vice-versa; furthermore, during a test situation a true steady state is often difficult to obtain.

     

Keywords

Cerebral Blood Flow Middle Cerebral Artery Occlusion Regional Cerebral Blood Flow Regional Blood Flow Cerebral Vessel 
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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Copyright information

© Springer-Verlag Berlin · Heidelberg 1969

Authors and Affiliations

  • C. Fieschi
    • 1
  • A. Agnoli
    • 1
  • L. Bozzao
    • 1
  • N. Battistini
    • 1
  • M. Prencipe
    • 1
  1. 1.Department of Neurology and PsychiatryUniversity of GenoaItaly

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