瓦特壶腹癌行胰十二指肠切除术后生存相关因素分析

目的 探讨瓦特壶腹癌胰十二指肠切除术后长期生存的相关因素,从而制订出更具针对性的治疗方案.方法 回顾性分析解放军总医院1997年1月至2005年9月间收治的行胰十二指肠切除术的77例瓦特壶腹癌患者的临床资料,采用Kaplan-Meier法进行生存分析,独立样本t检验进行统计学比较,应用COX比例风险模型进行多因素分析.结果 全组无手术死亡,总的5年生存率为40.7%;单因素分析表明,术前癌胚抗原(CEA)水平(P=0.012)、肿瘤浸润深度(P=0.000)、TNM分期(P=0.000)、肿瘤直径(P=0.001)是影响瓦特壶腹癌患者术后生存时间的相关因素;多因素回归分析显示肿瘤直径是有统计学意义的独立预后指标(P=0.000).结论 瓦特壶腹癌行胰十二指肠切除术后预后良好,肿瘤直径是惟一影响预后的独立相关因素,而术前CEA水平、肿瘤浸润深度、TNM分期可能也对术后生存时间有一定影响,还需进一步行随机分组对照前瞻性研究来明确.

Determinants of long-term survival after pancreaticoduodenectomy for ampulla of Vater carcinoma

Objective To investigate the determinants of long-term survival for ampulla of Vater carcinoma treated by pancreaticoduodenectomy. Methods A total of 77 patients with ampulla of Vater carcinoma undergoing pancreaticoduodenectomy were reviewed. Kaplan-Meier method was used to analyze the survival rate. Independent t test was used for statistical comparison and COX regression model for mullivariate analysis. Results No patient died as a result of surgery. The overall 5-year survival was 40. 7%. Univariate analysis showed that perioperative serum carcinoembryonic antigen ( CEA ) level ( P = 0. 012 ) , tumor invasion depth ( P = 0. 000) , UICC stage ( P = 0. 000) and tumor size ( P = 0. 001) were significant prognostic factors of ampulla of Vater carcinoma; in multivariate analysis, only the tumor size (P = 0.000) was an independent prognostic factor of ampulla of Vater carcinoma. Conclusion Pancreaticoduodenectomy is associated with significant survival. Tumor size is the most important influencing factor of outcome after pancreaticoduodenectomy; in addition, perioperative serum CEA level, tumor invasion depth and UICC stage may also influence the survival rate, there exists a need for further follow-up studies.