胰头癌是十分常见的胰腺恶性肿瘤，其发病率在全球均有明显的逐年增加的趋势。美国胰腺癌的发生据估计每年有24000个新病例，胰头癌约占2／3以上。本病早期诊断困难，预后极为恶劣。手术切除率约15％，术后5年生存率为7％～10％。由于胰头十二指肠切除手术死亡率与并发症过高的 Pancreatic head cancer is a very common pancreatic malignancy, and its incidence has been increasing year by year in the world. The occurrence of pancreatic cancer in the United States is estimated to have 24,000 new cases each year, with pancreatic cancer accounting for more than two-thirds. Early diagnosis of the disease is difficult and the prognosis is extremely poor. The surgical resection rate was about 15%, and the postoperative 5-year survival rate was 7% to 10%. Due to the high mortality and complications of pancreatoduodenectomy