Transcranial Doppler in the Study of Cerebral Perfusion During Cardiopulmonary Bypass
Studies of the cerebral circulation during cardiopulmonary bypass (CPB) procedures have been severely hampered by methodological difficulties. Compared with the large numbers of cardiac operations performed each year, knowledge on cerebral perfusion has been remarkably scarce, especially since cerebral damage remains a major and devastating com-plication of cardiac surgery . Early experimental studies using electromagnetic carotid artery flowmetry, indicated that carotid flow fluctuated passively with flow from the heart-lung machine during non-pulsatile cardiopulmonary bypass [4, 7].
KeywordsCerebral Blood Flow Internal Carotid Artery Cardiopulmonary Bypass Cerebral Perfusion Cerebral Perfusion Pressure
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- 3.Andersen K, Waaben J, Husum B, et al (1986) Nonpulsatile cardiopulmonary bypass disrupts flow-metabolism couple in brain. J Thorac Cardiovasc Surg (in press)Google Scholar
- 4.Akeney J L, Viles PH (1961) The effect of total body perfusion on carotid blood flow. Surgery 49: 209Google Scholar