卒中是目前导致人类死亡的第二位原因。目前随着人口老龄化，生活条件的改善，工作压力大，体育活动的减少等种种原因导致卒中发病率仍然居高不下。高血压、糖尿病、吸烟等众多因素导致患者动脉粥样硬化而引起的缺血性卒中仍然在卒中中占有相当大的比重。其带来的高发病率、高死亡率、高致残率给社会家庭带来了沉重的负担。急性缺血性卒中时梗死区旁侧支循环的建立可以增加缺血区的血流供应，保护局部受损的脑组织，最大限度地降低脑组织的损伤，减少梗死面积，降低患者的死亡率，改善患者的预后。%Stroke is currently the second leading cause of human death. At present, due to the aging tendency of the population, improvement of living conditions, high working pressure, less physical activity and other causes, stroke morbidity is still high. Ischemic stroke caused by atherosclerosis because of hypertension, diabetes, smoking and many other factors is still accounting for a large proportion of stroke. The high morbidity, high mortality rate and high disability rate bring profound suffering to the society and family. The establishment of collateral circulation in the infarcted area during acute ischemic stroke can increase the blood supply in the ischemic area, protect the damaged brain tissue, minimize the damage of the brain tissue, reduce the infarct area and the mortality rate, in order to improve the prognosis of patients.
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