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Journal of anesthesia · Jan 2008
Case ReportsDelayed response of transcranial myogenic motor-evoked potential monitoring to spinal cord ischemia during repair surgery for descending thoracic aortic aneurysm.
- Manabu Kakinohana, Masanori Abe, Yuji Miyata, Masakatsu Oshiro, Satoko Saikawa, Katsuya Arakaki, Yukio Kuniyoshi, and Kazuhiro Sugahara.
- Department of Anesthesiology, Faculty of Medicine, University of the Ryukyus, 207 Uehara, Nishihara, Okinawa 903-0215, Japan.
- J Anesth. 2008 Jan 1; 22 (3): 304-7.
AbstractThe efficacy of transcranial myogenic motor-evoked potential (tc-MEP) monitoring during thoracic aortic surgery has been the subject of some reports, because tc-MEP monitoring can rapidly reflect changes in spinal cord blood flow during thoracic aortic cross-clamping. In this article, we present a case in which delayed loss of tc-MEP signals was observed after cross-clamping of the descending thoracic aorta. We must be aware that tc-MEPs recorded from the lower extremities can fail to provide rapid detection of spinal cord ischemia in the upper thoracic level after cross-clamping of the descending thoracic aorta.
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