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Direct noninvasive monitoring of spinal cord motor function during thoracic aortic occlusion: Use of motor evoked potentials  John C. Laschinger, M.D.,

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Presentation on theme: "Direct noninvasive monitoring of spinal cord motor function during thoracic aortic occlusion: Use of motor evoked potentials  John C. Laschinger, M.D.,"— Presentation transcript:

1 Direct noninvasive monitoring of spinal cord motor function during thoracic aortic occlusion: Use of motor evoked potentials  John C. Laschinger, M.D., Jeffrey Owen, Ph.D., Michael Rosenbloom, M.D., James L. Cox, M.D., Nicholas T. Kouchoukos, M.D.  Journal of Vascular Surgery  Volume 7, Issue 1, Pages (January 1988) DOI: / (88) Copyright © 1988 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

2 Fig. 1 Schematic representation of MEP monitoring system. See text for details. Journal of Vascular Surgery 1988 7, DOI: ( / (88) ) Copyright © 1988 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

3 Fig. 2 Normal MEP recordings. Note progression of conduction down the spinal cord (T-10 to L-4). Normal response is biphasic at all spinal cord levels. Journal of Vascular Surgery 1988 7, DOI: ( / (88) ) Copyright © 1988 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

4 Fig. 3 MEP response signifying early ischemia. Note that progression of conduction down the cord is maintained but second peak (P2) is absent at all levels. Journal of Vascular Surgery 1988 7, DOI: ( / (88) ) Copyright © 1988 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

5 Fig. 4 MEP response signifying late ischemia. Note loss of conduction at all levels with loss of both peaks (P1 and P2). Journal of Vascular Surgery 1988 7, DOI: ( / (88) ) Copyright © 1988 Society for Vascular Surgery and International Society for Cardiovascular Surgery, North American Chapter Terms and Conditions

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