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Evoked Electrical Activity of the Brain During Hypothermia: The Visual System

Evoked Electrical Activity of the Brain During Hypothermia: The Visual System Abstract Introduction Despite the widespread clinical usage of hypothermia, information relative to nervous system activity during hypothermia has been slow to accumulate. This lack of data is somewhat surprising, in that one most important effect of lowering the body temperature is to reduce the metabolic rate of neural tissue.1-4 This reduction serves as a protective influence against the consequences of hypoxia following the extended occlusion of the blood supply to the brain and/or spinal cord during surgical procedures on the heart, brain, great vessels, etc.5-7 The few studies which have been reported have been confined to the investigation of the electrical activity of peripheral nerves or differentially cooled segments of the nervous system, or they have been done under conditions not consistent with the methods employed currently in the clinical management of hypothermia.8-12 Therefore, this investigation was undertaken to evaluate the effect of temperature upon evoked electrical activity References 1. Rosomoff, H. L., and Holaday, D. A.: Cerebral Blood Flow and Cerebral Oxygen Consumption During Hypothermia , Am. J. Physiol. 179: 85-88, 1954. 2. Lougheed, W. M., and Kahn, D. S.: Circumvention of Anoxia During Arrest of Cerebral Circulation for Intracranial Surgery , J. Neurosurg. 12:226-239, 1955.Crossref 3. Stone, H. H.; Donnelly, G, and Frobese, A. S.: Effect of Lowered Body Temperature on the Cerebral Hemodynamics and Metabolism of Man , Surg. Gynec. & Obst. 103:313-317, 1956. 4. Field, J., II; Fuhrman, F. A., and Martin, A. W.: Effects of Temperature on the Oxygen Consumption of Brain Tissue , J. Neurophysiol. 7: 117-126, 1944. 5. Bigelow, W. G.; Callaghan, J. C, and Hopps, J. A.: General Hypothermia for Experimental Intracardiac Surgery , Ann. Surg. 132:531-537, 1950. 6. Pontius, R. G.; Brockman, H. L.; Hardy, E. G.; Cooley, D. A., and De Bakey, M. E.: The Use of Hypothermia in the Prevention of Paraplegia Following Temporary Aortic Occlusion: Experimental Observations , Surgery 36:33-38, 1954. 7. Botterell, E. H.; Lougheed, W. M.; Scott, J. W., and Vandewater, S. L.: Hypothermia, and Interruption of Carotid, or Carotid and Vertebral Circulation, in the Surgical Management of Intracranial Aneurysms , J. Neurosurg. 13:1-42, 1956. 8. Gasser, H. S.: Nerve Activity as Modified by Temperature Changes , Am. J. Physiol. 97:254-270, 1931. 9. Douglas, W. W., and Malcolm, J. L.: Effect of Localized Cooling on Conduction in Cat Nerves , J. Physiol. 130:53-71, 1955. 10. Tasaki, I., and Fujita, M.: Action Curraits of Single Nerve Fibers as Modified by Temperature Changes , J. Neurophysiol. 11:311-315, 1948. 11. Brooks, C. McC.; Koizumi, K., and Malcolm, J. L.: Effects of Changes in Temperatures on Reactions of the Spinal Cord , J. Neurophysiol. 18:205-216, 1955. 12. Noell, W. K, and Briller, S. A.: Effects of Hypothermia on Brain Activity , Project No. 21-1202-0003, Rep. No. 1, Randolph Field, Texas, USAF School of Aviation Medicine, 1953. 13. Rosomoff, H. L., and Gilbert, R.: Brain Volume and Cerebrosptnal Fluid Pressure During Hypothermia , Am. J. Physiol. 183:19-22, 1955. 14. Callaghan, J. C.; McQueen, D. A.; Scott, J. W., and Bigelow, W. G.: Cerebral Effects of Experimental Hypothermia , A. M. A. Arch. Surg. 68:208-215, 1954. 15. Baldwin, M.; Frost, L. L.; Wood, C. D., and Lewis, S. A.: Effect of Hypothermia on Epileptiform Activity in the Primate Temporal Lobe , Science 124:931-932, 1956. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png A.M.A. Archives of Neurology & Psychiatry American Medical Association

Evoked Electrical Activity of the Brain During Hypothermia: The Visual System

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Publisher
American Medical Association
Copyright
Copyright © 1958 American Medical Association. All Rights Reserved.
ISSN
0096-6886
DOI
10.1001/archneurpsyc.1958.02340110024003
Publisher site
See Article on Publisher Site

Abstract

Abstract Introduction Despite the widespread clinical usage of hypothermia, information relative to nervous system activity during hypothermia has been slow to accumulate. This lack of data is somewhat surprising, in that one most important effect of lowering the body temperature is to reduce the metabolic rate of neural tissue.1-4 This reduction serves as a protective influence against the consequences of hypoxia following the extended occlusion of the blood supply to the brain and/or spinal cord during surgical procedures on the heart, brain, great vessels, etc.5-7 The few studies which have been reported have been confined to the investigation of the electrical activity of peripheral nerves or differentially cooled segments of the nervous system, or they have been done under conditions not consistent with the methods employed currently in the clinical management of hypothermia.8-12 Therefore, this investigation was undertaken to evaluate the effect of temperature upon evoked electrical activity References 1. Rosomoff, H. L., and Holaday, D. A.: Cerebral Blood Flow and Cerebral Oxygen Consumption During Hypothermia , Am. J. Physiol. 179: 85-88, 1954. 2. Lougheed, W. M., and Kahn, D. S.: Circumvention of Anoxia During Arrest of Cerebral Circulation for Intracranial Surgery , J. Neurosurg. 12:226-239, 1955.Crossref 3. Stone, H. H.; Donnelly, G, and Frobese, A. S.: Effect of Lowered Body Temperature on the Cerebral Hemodynamics and Metabolism of Man , Surg. Gynec. & Obst. 103:313-317, 1956. 4. Field, J., II; Fuhrman, F. A., and Martin, A. W.: Effects of Temperature on the Oxygen Consumption of Brain Tissue , J. Neurophysiol. 7: 117-126, 1944. 5. Bigelow, W. G.; Callaghan, J. C, and Hopps, J. A.: General Hypothermia for Experimental Intracardiac Surgery , Ann. Surg. 132:531-537, 1950. 6. Pontius, R. G.; Brockman, H. L.; Hardy, E. G.; Cooley, D. A., and De Bakey, M. E.: The Use of Hypothermia in the Prevention of Paraplegia Following Temporary Aortic Occlusion: Experimental Observations , Surgery 36:33-38, 1954. 7. Botterell, E. H.; Lougheed, W. M.; Scott, J. W., and Vandewater, S. L.: Hypothermia, and Interruption of Carotid, or Carotid and Vertebral Circulation, in the Surgical Management of Intracranial Aneurysms , J. Neurosurg. 13:1-42, 1956. 8. Gasser, H. S.: Nerve Activity as Modified by Temperature Changes , Am. J. Physiol. 97:254-270, 1931. 9. Douglas, W. W., and Malcolm, J. L.: Effect of Localized Cooling on Conduction in Cat Nerves , J. Physiol. 130:53-71, 1955. 10. Tasaki, I., and Fujita, M.: Action Curraits of Single Nerve Fibers as Modified by Temperature Changes , J. Neurophysiol. 11:311-315, 1948. 11. Brooks, C. McC.; Koizumi, K., and Malcolm, J. L.: Effects of Changes in Temperatures on Reactions of the Spinal Cord , J. Neurophysiol. 18:205-216, 1955. 12. Noell, W. K, and Briller, S. A.: Effects of Hypothermia on Brain Activity , Project No. 21-1202-0003, Rep. No. 1, Randolph Field, Texas, USAF School of Aviation Medicine, 1953. 13. Rosomoff, H. L., and Gilbert, R.: Brain Volume and Cerebrosptnal Fluid Pressure During Hypothermia , Am. J. Physiol. 183:19-22, 1955. 14. Callaghan, J. C.; McQueen, D. A.; Scott, J. W., and Bigelow, W. G.: Cerebral Effects of Experimental Hypothermia , A. M. A. Arch. Surg. 68:208-215, 1954. 15. Baldwin, M.; Frost, L. L.; Wood, C. D., and Lewis, S. A.: Effect of Hypothermia on Epileptiform Activity in the Primate Temporal Lobe , Science 124:931-932, 1956.

Journal

A.M.A. Archives of Neurology & PsychiatryAmerican Medical Association

Published: Nov 1, 1958

References