淋巴结转移数目是Vater壶腹癌术后显著的预后指标

目的探讨Vater壶腹癌根治术后的预后相关因素。方法回顾分析行胰十二指肠切除术及局部淋巴结清扫术的65例Vater壶腹癌患者的临床病理资料及生存状况。结果65例患者共切除淋巴结1380枚。有33例患者发现116枚淋巴结转移，随访83个月，发现20例有1～3枚淋巴结转移者，中位生存49个月，术后5年生存率为43％；13例有4枚或4枚以上淋巴结转移者，术后23个月内全部死亡。单因素分析发现，阳性淋巴结数目（P〈0．01）和位置（P〈0．01）是显著的预后指标。多因素分析发现，阳性淋巴结数目是独立的预后指标（P=0．007）。结论淋巴结转移数目是Vater壶腹癌患者根治手术后长期生存的独立相关因素。

Number of lymph node metastases :a significant prognostic factor for patients with radical resection of carcinoma of the ampulla of Vater

OBJECTIVE: To identify prognostic factors predicting survival after radical resection of ampullary carcinoma. METHODS: Clinical data of sixty- five patients with cancer of the ampulla of Vater underwent pancreaticoduodenectomy and regional lymphadenectomy were analyzed retrospectively. RESULTS: A total of 1380 lymph nodes dissected from the resected specimens was examined to detect the presence of metastasis. The median follow- up period was 83 months. Univariate analysis revealed that factors associated with poor survival included the number and the location of positive nodes. Thirty- three of the 65 patients had a total of 116 positive lymph nodes, of whom 20 had 1- 3 positive regional nodes lymph and 13 had > or = 4 positive regional lymph nodes. Multivariate analysis revealed that the number of positive nodes lymph was an independent prognostic factor (P=0.007), while the locations of lymph nodes failed to remain as an independent variable. The survival rate in patients with > or = 4 positive lymph nodes was significantly lower than that in those with 1- 3 positive lymph nodes. The median survival time was 49 months with a 5- year survival rate of 43% in patients with 1- 3 positive lymph nodes, whereas all patients with > or = 4 positive nodes died of the disease within 23 months after resection (P=0.0001). CONCLUSION: The number of positive regional lymph nodes is an independent prognostic factor in patients with ampullary carcinoma after resection.