腰椎间盘突出症是指因腰椎间盘变性、破裂后,髓核突向后方或突至椎板内,致使相邻组织遭受刺激或压迫而出现的一系列相应的临床症状。腰椎管狭窄是指各种原因引起的骨质增生肥厚,导致椎管或神经根的矢状径变窄,刺激或压迫由此通过的脊神经根或马尾神经而引起的腰腿疼痛,临床上腰椎间盘突出伴椎管狭窄较常见。大面积脑梗死是一种严重的缺血性脑卒中,起病急,进展快,致残率、病死率高。脑梗死是指由于脑部血液供应障碍、缺血、缺氧引起的局限性脑组织的缺血 Lumbar disc herniation refers to a series of corresponding clinical symptoms that occur when the adjacent tissue is stimulated or oppressed due to the degeneration and rupture of the lumbar disc, and the nucleus pulposus protruding backward or protruding into the lamina. Lumbar spinal stenosis refers to various causes of hyperosteogeny hypertrophy, resulting in spinal canal or nerve root sagittal diameter narrowing, stimulation or oppression of the spinal nerve root or cauda equina caused by the waist and leg pain, clinical lumbar Disc herniation with spinal stenosis is more common. Large area cerebral infarction is a serious ischemic stroke, acute onset, rapid progress, disability, high mortality. Cerebral infarction refers to the limitation of ischemic brain tissue due to impaired blood supply to the brain, ischemia and hypoxia