Relationship between Different Levels of CBF and Reactivity to Physiological Stimuli (CO2 and MABP)
To determine the critical flow level that can be safely reached during carotid clamping for carotid surgery it is useful to establish which CBF levels may cause a change in the reactivity to physiological stimuli. Some measurements of CBF during carotid surgery (2) have showed that neurologic complications can occur when the CBF values reached during clamping are below 25 to 30 ml/100 g/min.
KeywordsCerebral Blood Flow Mean Arterial Blood Pressure Physiological Stimulus Carotid Occlusion Hypertensive Encephalopathy
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- 4.Garcia, J. H.: in: Cerebral Vascular Diseases. Eighth Princeton Conference. F. H. McDowell and R. W. Brennan, eds. New York: Grune & Stratton (1973).Google Scholar
- 5.Halsey, J. H.: “Some effects of Pco2 and blood pressure on acute cerebral ischaemia.” In: Brain and Blood Flow. R. W. Ross-Russel, ed. London: Pitman (1971), p. 107.Google Scholar
- 6.Kaasik, A. E., Nilsson, L., and Siesjö, B. K.: “Acid-base and lactate pyruvate changes on brain and C.S.F. in asphyxia and stagnant hypoxia.” Scand. J. Clin. Lab. Invest. Suppl. 102, I:G (1968).Google Scholar
- 8.Pistolese, G. R.: Citone, G.: Faraglia, V., Benedetti-Valentini, F., Jr., Pastore, E., Semprebene, L., De Leo, G., Speranza, V., and Fiorani, P.: “Effects of hypercapnia on cerebral blood flow during the clamping of the carotid arteries in surgical management of cerebrovascular insufficiency.” Neurology 21:95 (1951).Google Scholar