PMID: 15247996Jul 13, 2004Paper

Human auditory evoked potentials in the assessment of brain function during major cardiovascular surgery

Seminars in Cardiothoracic and Vascular Anesthesia
Rosendo A Rodriguez

Abstract

Focal neurologic and intellectual deficits or memory problems are relatively frequent after cardiac surgery. These complications have been associated with cerebral hypoperfusion, embolization, and inflammation that occur during or after surgery. Auditory evoked potentials, a neurophysiologic technique that evaluates the function of neural structures from the auditory nerve to the cortex, provide useful information about the functional status of the brain during major cardiovascular procedures. Skepticism regarding the presence of artifacts or difficulty in their interpretation has outweighed considerations of its potential utility and noninvasiveness. This paper reviews the evidence of their potential applications in several aspects of the management of cardiac surgery patients. The sensitivity of auditory evoked potentials to the effects of changes in brain temperature makes them useful for monitoring cerebral hypothermia and rewarming during cardiopulmonary bypass. The close relationship between evoked potential waveforms and specific anatomic structures facilitates the assessment of the functional integrity of the central nervous system in cardiac surgery patients. This feature may also be relevant in the management of criti...Continue Reading

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Citations

Dec 25, 2007·Annual Review of Psychology·Sally E ShaywitzBennett A Shaywitz
Jan 22, 2015·Journal of Cardiothoracic and Vascular Anesthesia·Rosendo A RodriguezHoward J Nathan
Oct 16, 2013·Journal of Critical Care·Rosendo A RodriguezHoward J Nathan
Dec 26, 2012·Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia·Jin Jun LuoSanjeev V Kothare
Jul 13, 2004·Seminars in Cardiothoracic and Vascular Anesthesia·John M Murkin

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