联合肠系膜上静脉-门静脉切除在胰腺癌根治术中的作用

目的 研究胰十二指肠合并肠系膜上静脉-门静脉切除的手术安全性及术后生存率,评估它在胰腺癌根治术中的作用.方法 回顾性分析32例因胰腺癌行胰十二指肠合并肠系膜上静脉-门静脉切除患者,根据病理有无真正的血管侵犯分为无血管侵犯组和肠系膜上静脉-门静脉侵犯组.结果 32例胰十二指肠合并肠系膜上静脉-门静脉切除并发症发生率为31%,无手术死亡,术后1、3年生存率分别为59%、22%,切缘阴性组平均生存时间20个月,而切缘阳性组平均生存时间仅5.6个月;无肿瘤血管侵犯组和肠系膜上静脉-门静脉侵犯两组并发症发生率、术后3年生存率无明显差别.结论 肠系膜上静脉-门静脉侵犯并非胰腺癌根治术的禁忌证,肠系膜上静脉-门静脉侵犯并非提示不良预后的组织学指标.

The importance of superior mesenteric-portal vein resection for radical duodenopancreatectomy of pancreatic adenocarcinoma

Objective To investigate morbidity, mortality and survival of patients with adenocarcinoma of the pancreas who underwent pancreaticoduodenectomy with en bloc portal vein resection, and to evaluate its effect on radical resection of pancreatic carcinoma. Methods Between 1999 and 2003, 32 patients with ductal adenocarcinoma of the head of the pancreas who underwent pancreaticoduodenectomy with SMPV resection were retrospectively analyzed. Patients were divided into two groups with group A(n = 12) in which the wall of portal vein was surrounded by carcinoma without true invasion,and group B(n = 20) , by tumor transmural invasion. Results The overall morbidity was 31% , there was no operative mortality, the 1,3-year survival rate was 59% and 22% respectively. The mean survival time of patients with microscopically positive margin was 5. 6 months as compared with 20 months with microscopically negative margin. There was no difference in tumor size, margin positivity, nodal positivity, and 1,3-year survival rate between the two groups. Conclusions Pancreaticoduodenectomy combined with SMPV resection can be performed safely, without increasing the morbidity and mortality. SMPV resection should be performed only when a margin-negative resection is expected. SMPV invasion is not associated with histologic parameters suggesting a poor prognosis.