前言肝切除术中出血一直是困扰外科医生的重点和难点。出血量的多少直接关系着患者术后并发症发生率和死亡率,可通过血流阻断控制出血量。与间断血流阻断法相比,持续性血流阻断可引起更为严重的肝脏缺血再灌注损伤。选择性半肝血流阻断技术可以避免剩余肝脏不必要的的缺血再灌注的打击。正常的肝外门脉解剖走形比较固定, Preface Bleeding during liver resection has been a major and difficult issue for surgeons. The amount of bleeding is directly related to the incidence of postoperative complications and mortality in patients, bleeding control by blood flow. Compared with discontinuous blood flow blocking, persistent blood flow blockade can cause more severe liver ischemia-reperfusion injury. Selective half hepatic blood flow occlusion technique can avoid unnecessary ischemic reperfusion attacks on the remaining liver. The normal extrahepatic portal vein dissection is relatively fixed,