Nagakawa T, Nagamori M, Futakami F, Tsukioka Y, Kayahara M, Ohta T, Ueno K, Miyazaki I
Second Department of Surgery, School of Medicine, Kanazawa University, Japan.
Cancer. 1996 Feb 15;77(4):640-5.
Since 1973, 210 patients with pancreatic carcinoma have undergone surgery in our clinic, including 144 with carcinoma of the head of the pancreas. Of these 144 patients, macroscopic curative resections were performed on 53 (36.8%). Five patients (9.4%) died within 30 postoperative days, and an additional 3 (5.7%) died within 60 days. The overall median survival was 13 months. Eight of the patients who underwent macroscopic curative resection survived 5 years, giving a 5-year survival rate of 27.4% using the Kaplan-Meier method. The 5-year survival rate was 39.7% after a microscopically curative resection and 0% after a microscopically noncurative resection.
Outcome was compared based on the extent of pancreatic cancer by constructing survival curves according to the general rules published by the Japan Pancreas Society.
There was no statistically significant difference in survival based on tumor size or stage. However, there was a significant difference in the survival of patients with the absence (so) or presence (se) of invasion to the anterior capsule of the pancreas, the absence (rpo) or presence (rpe) of invasion of the retroperitoneal tissue, the absence (ew0) or presence (ew2) of invasion at the surgical margin of resection, and the extent (n0 to n2) of lymph node metastasis.
The results of this study suggest that extended radical pancreatectomy may be indicated for patients with pancreatic carcinoma because standard dissection may fail when the tumor has spread to the retroperitoneum or extrapancreatic nerve plexus.
自1973年以来,我院共对210例胰腺癌患者实施了手术,其中144例为胰头癌。在这144例患者中,53例(36.8%)进行了肉眼下根治性切除。5例(9.4%)患者术后30天内死亡,另有3例(5.7%)在60天内死亡。总体中位生存期为13个月。8例接受肉眼下根治性切除的患者存活了5年,采用Kaplan-Meier法计算的5年生存率为27.4%。显微镜下根治性切除后的5年生存率为39.7%,显微镜下非根治性切除后的5年生存率为0%。
根据日本胰腺学会公布的一般规则构建生存曲线,根据胰腺癌的范围比较结果。
基于肿瘤大小或分期的生存率无统计学显著差异。然而,胰腺前被膜有无侵犯(so或se)、腹膜后组织有无侵犯(rpo或rpe)、切除手术切缘有无侵犯(ew0或ew2)以及淋巴结转移范围(n0至n2)的患者生存率存在显著差异。
本研究结果表明,对于胰腺癌患者可能需要行扩大根治性胰腺切除术,因为当肿瘤扩散至腹膜后或胰腺外神经丛时,标准解剖可能无法切除肿瘤。