摘要
目的:报道1例截瘫为仅有症状的无痛性急性主动脉夹层,探讨其发病机制,以提高对本病的认识。方法:查阅近年来相关的文献。结果:3%～5%的主动脉夹层病人合并截瘫,无痛性截瘫更为少见。截瘫大部分发生在下胸段及腰段,而发生在T4(一般认为的分水岭区)则少见。结论:主动脉夹层表现为无疼痛,而以截瘫为仅有的症状是非常少见的。截瘫发生在下胸段及腰段是因该部位脊髓前动脉侧支少,对Adam kiewicz动脉的依赖性大。
Objectives： The authors report a patient with painless acute aortic dissection in which paraplegia is the only presenting sign and also explore the pathogenesis of the disease for further understanding of it. Methods： Related articals published in recent years were consulted. Results： 3 % to 5% of patients with acute aortic dissection present with paraplegia, painless paraplegia is rarer. Praplegia in the lower thoracic and lumbar spinal cord are far more common than in T4 level which is generally accepted as the ischemic watershed zone. Conclusion： Painless acute aortic dissection in which paraplegia is the only presenting sign is rare, with limited reported cases. In the lower thoracic region,the anterior spinal artery has the poorest collateralization,making spinal cord perfusion more dependent and sensitive to the blood flow of the artery of Adamkiewicz.
出处
《脑与神经疾病杂志》
2006年第5期357-359,共3页
Journal of Brain and Nervous Diseases
关键词
急性主动脉夹层
无痛性
截瘫
脊髓缺血
acute aortic dissection painless paraplegia spinal cord ischemia
