影响肺癌手术治疗的最主要因素是肿瘤向肺门及心血管等重要部位的浸润和转移．据统计能够接受外科手术的肺癌；仅占全部肺癌病例的约20％［’1，而绝大部分病人却失去了手术治疗的机会．近年来，我们应用肺动脉控制阻断术，对常规方法不能手术的Ill和IV期肺癌，进行了扩大切除 The most important factor affecting the surgical treatment of lung cancer is the invasion and metastasis of the tumor to important parts such as hilar and cardiovascular. According to statistics, lung cancer that can undergo surgery is only about 20% of all lung cancer cases [’1, but most patients have lost the chance of surgery. In recent years, we have applied pulmonary artery blockade to expand the resection of Ill and IV lung cancers that cannot be operated by conventional methods.