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Protective Effects of Trimetazidine in a Rabbit Model of Transient Spinal Cord Ischemia  

장운하 (성균관대학교 의과대학 강북삼성병원 흉부외과)
최주원 (성균관대학교 의과대학 강북삼성병원 흉부외과)
김미혜 (성균관대학교 의과대학 강북삼성병원 흉부외과)
오태윤 (성균관대학교 의과대학 강북삼성병원 흉부외과)
한진수 (삼성생명과학연구소 실험동물연구실)
김종성 (삼성생명과학연구소 실험동물연구실)
이수윤 (이화여자대학교 의과대학 의학과)
Publication Information
Journal of Chest Surgery / v.35, no.4, 2002 , pp. 255-260 More about this Journal
Abstract
Paraplegia remains unresolved as the most dreaded operative complication with surgical treatment of descending thoracic and thoracoabdominal aortic diseases. In this study, the neuroprotective effect of trimetazidine that has been used clinically for ischemic heart disease was investigated in a rabbit spinal cord ischemia model. Material and Method: Thirty-three New Zealand white rabbits were randomized as follows: control group undergoing abdominal aortic occlusion but receiving no pharmacologic intervention(Group 1, n= 17); TMZ group(Group 2, n= 16) receiving 3 mg/kg trimetazidine intravenously before the occlusion of the aorta. Ischemia was induced by clamping the abdominal aorta just distal to the left renal artery for 30 minutes. Neurologic status was assessed at 2, 24, and 48 hours after the operation according to the modified Tarlov scale, then the lumbosacral spinal cord was processed for histopathologic examinations 48 hours after the final assessment. Result: The average motor function score was significantly higher in the TMZ group(3.20 $\pm$ 0.77 vs 1.13 $\pm$ 1.25 at 2 hours, 3.50 $\pm$ 0.76 vs 1.45 $\pm$ 1.57 at 24 hours, and 3.91 $\pm$ 0.30 vs 1.86 $\pm$ 1.86 at 48 hours after operation; p value$\leq$0.05). Histologic observations were correlated with the motor scores. Conclusion: The results suggested that trimetazidine reduced spinal cord injury during aortic clamping and that it may have clinical utility for the thoracoabdominal aortic surgery:
Keywords
Trimetazidine; Spinal cord ischemia; Aorta Thoracoabdominal;
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