Reversal of acute monoparesis following thoracoabdominal aortic aneurysm repair.

A 67-year-old man underwent surgical repair for a Crawford extent V thoracoabdominal aortic aneurysm under cerebrospinal fluid drainage and motor evoked potential monitor on distal aortic perfusion. Postoperatively, weakness of right-sided leg graded 2/5 and bladder disorder were recognized. Magnetic resonance imaging revealed hyperintensity between Th11 and L1 on T2-weighted image. Intravenous glycerin and edaravone for spinal cord ischemia had been administered. The strength of right leg resolved completely with disappearance of hyperintensity on magnetic resonance image. Finally, he could walk on foot with bladder disorder.