[Two cases of ischemic changes indicated in the amplitude of motor evoked potentials during thoracoabdominal aortic aneurysm repair].
Monitoring of motor-evoked potentials (MEPs) is employed to examine functional integrity of descending motor pathway during thoracic aortic surgery. We experienced two cases of intraoperative changes in MEPs during thoracic aortic replacement. In one case, MEPs recovered after the intercostal artery reattachment, and in another case after the release of aortic clamping. No postoperative paraplegia was found in both cases. We conclude that monitoring of MEPs is useful not only because we can detect symptoms of the spinal cord injury from ischemia immediately but also because they give us a clue to decide operative procedures.
Shimoda
T
T
Department of Anesthesiology, Nara Medical University, Kashihara 634-8522.
Inoue
S
S
Kakimoto
M
M
Sakamoto
T
T
Kawaguchi
M
M
Takahashi
M
M
Kitaguchi
K
K
Furuya
H
H
Tabayashi
N
N
Taniguchi
S
S
D000368:Aged; D017544:Aortic Aneurysm, Abdominal / Q000601:surgery*; D017545:Aortic Aneurysm, Thoracic / Q000601:surgery*; D001019:Aortic Rupture / Q000601:surgery*; D019917:Blood Vessel Prosthesis Implantation; D019054:Evoked Potentials, Motor / Q000502:physiology*; D005260:Female; D006801:Humans; D007431:Intraoperative Complications; D008297:Male; D008875:Middle Aged; D016343:Monitoring, Intraoperative / Q000379:methods*; D010264:Paraplegia / Q000517:prevention & control; D011183:Postoperative Complications; D013116:Spinal Cord / Q000502:physiology*; D020760:Spinal Cord Ischemia / Q000175:diagnosis*