<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /> 许多作者行硬膜外注射治疗腰腿痛加用B 族维生素,是基于其可调节和改善神经传导,促进神经功能恢复。本实验证实,在局麻药利多卡因和激素地塞米松的基础上分别加用维生素B1 、维生素B6 、维生素B12 的各组,对神经根炎的疗效虽比对照组及单用利多卡因组好( P < 0.01),但与利多卡因加地塞米松或强的松龙组的抗炎及减轻粘连的效果差异无显著性( P > 0.05),提示其疗效仍是类固醇激素消除炎症,减轻粘连的结果。B族维生素的上述促进神经功能恢复的效果,仍需进一步研究。 由于本实验动物模型与临床腰腿痛病人的炎症粘连并不完全相同,有关此方面的疗效需进一步的动物实验及临床研究证明。 在炎症早期,硬膜外注射局麻药利多卡因加类固醇激素(地塞米松、强的松龙)可有效地消除神经根的炎症,预防和减轻硬膜外粘连,在利多卡因和地塞米松的基础上分别加用维生素B1 、维生素B6 、维生素B12,治疗后1周观察并不能使疗效提高。建议硬膜外腔注药治疗腰腿痛时,应早期选择应用局部麻醉剂和类固醇激素为核心成分配伍,并以适量的生理盐水进行稀释。 参考文献 1. Olmarker K,Holm S,Rydevik B1 Importance of compression onset rate for the degree of impairment of impulse propagation inexperimental compression injury of the porcine cauda equina1Spine,1990,15:416-419. 2. Kuslich SD,Ulstrom CL,Michael CJ1 The tissue origin of low back pain and sciatica:a report of pain responses to tissue stimulation during operations on the lumbar spine using local anesthesia1Orthop Clin North Am,1991,22:181-187. 3. 吴闻文,吴树勋1 腰椎间盘组织磷酯酶A2 活性水平与神经根性 疼痛的关系1 中国脊柱脊髓杂志,1996,6:2-6. 4. Kawakami M,Weinstein JN,Chatani K,et al1 Experimental lumbar radiculopathy1Behavioral and histoiogic changes in a model of radicular pain after spinal nerve root irritation with chromic gut ligatures in the rat1 Spine,1994,19:1795-1802. 5. Saal J S,Franson RC,Dobrow R,et al1 High levels of inflammatory phospholipase A2 activity in lumbar disc herniations1Spine,1990,15:674-678. 6. Ozaktay AC,Cavanaugh JM,Blagoer DC,et al1 Phospholipase A2 induced electrophysiologic and histologic changes in rabbit dorsal lumbar spine tissues1Spine,1995,20:2659-2668. 7. Lee HM,Weinstein JN,Meller ST,et al1The role of steroids and their effects on phospholipase A2:an animal model of radiculopathy1Spine,1998,23:1191211961 8. Cooper RG,Freemont AJ,Hoyland JA,et al1 Herniated inte2 rvertbral disc2associated periradicular fibrosis and vascular abnormalities occur without inflammatory cell infiltration1Spine,1995,20:591-598. 9. 肖晓山,王树荣,肖林添,等1 硬膜外腔注入康宁克通A 或强的松龙复合液的实验研究1 中华麻醉学杂志,1992,12:204-205. 10. 刘义明,陈金典,胡三觉1 硬膜外注射镇痛复合药后硬膜神经脊髓细胞超微结构的变化1 中华麻醉学杂,1995,15:321-323. |