血栓闭塞性脉管炎,是全身性血管疾患。主要病变在四肢的中小型血管,而以下肢为多见。发病初期血管内膜增生,以后血栓逐渐形成,引起管腔狭窄,严重时发展到血管完全闭塞,侧枝循环不畅,引起肢体血循环紊乱,局部组织缺血、缺氧,最后并发 Thromboangiitis obliterans is a systemic vascular disorder. The main lesion in the extremities of small and medium vessels, and the lower limbs are more common. Early onset of intimal hyperplasia, after thrombosis gradually formed, causing stenosis, severe development of vascular occlusion, collateral circulation, causing limb blood circulation disorders, local tissue ischemia, hypoxia, and finally complicated