食管胃交界部腺癌根治性手术对细胞免疫的影响

目的:探讨进展期食管胃交界部腺癌(AEGJ)患者围手术期外周血中淋巴细胞亚群及CD4+CD25+T细胞和程序性细胞死亡1（PD-1）在T淋巴细胞中表达的变化,了解根治性手术创伤对机体细胞免疫功能的影响及机制。 方法:126例进展期食管胃交界部腺癌行开腹根治性R0切除+D2淋巴结清除术,同期体检志愿者87例为对照组。应用流式细胞仪检测对照组和治疗组术前、术后1天、术后3天、术后7天和术后9天外周血CD3+、CD3+CD4+、CD3+CD8+、CD4+CD25+T细胞计数和PD-1在T细胞中的表达水平。结果:治疗组术前和对照组相比较,CD3+、CD3+CD4+T细胞均显著降低（P<0.05）,而CD4+CD25+T细胞和PD-1在CD4+、CD8+T细胞的表达比例均显著增高（P<0.05）。CD4+CD25+T细胞的比例在术后1天迅速下降至谷底,随后逐渐升高,于术后7天达顶峰,然后再次下降。CD4+PD-1+T细胞的比例在术后显著增加:术后第1天达到最大值,然后逐渐下降,但在术后第7天仍显著高于术前。 CD8+PD-1+T细胞的比例则在术后逐渐增加,到术后7天达高峰。结论:食管胃交界部腺癌手术创伤可能是通过各种细胞因子导致CD4+PD-1+T细胞比例改变,进而调节T淋巴细胞亚群比例,抑制细胞免疫能力。     

腹腔镜微创手术治疗局部进展期食管胃交界部腺癌术中腹腔冲洗灭菌注射用水用量对疗效的影响

目的:探讨术中灭菌注射用水在腹腔冲洗中的用量对腹腔镜微创手术治疗局部进展期食管胃交界部腺癌(AEG)患者疗效的影响.方法:选取2013年10月至2014年12月行腹腔镜手术治疗的进展期AEG患者120例,按照灭菌注射用水在腹腔冲洗中的用量分为4组,每组30例.A组:1000 mL;B组:3000 mL;C组:5000 ...     

The prognostic relevance of parapyloric lymph node metastasis in Siewert type II/III adenocarcinoma of the esophagogastric junction

Background

The purpose of this study was to evaluate the prognosis of patients with Siewert type II/III adenocarcinoma of the esophagogastric junction (AEG) with parapyloric lymph node (No. 5 and 6 lymph nodes, PLN) metastasis and to determine the need for PLN dissection for patients with type II/III AEG.

Proposal for a new definition of true cardia carcinoma

BACKGROUND AND OBJECTIVES: It remains controversial whether cardia carcinoma should be categorized and treated as esophageal cancer or gastric cancer. The purpose of this study was to develop a reasonable definition of cardia carcinoma. METHODS: Patients with Siewert type II carcinomas were divided into two subgroups: 25 patients with a tumor center within 1 cm of the esophagogastric junction (EGJ) (type IIA) and 22 patients with tumor center 1-2 cm aboral of the EGJ (type IIB). Patients with subcardia carcinomas, 40 with invasion to the EGJ (type III) and 110 without (type IIIe-), were used as controls. RESULTS: The patients with type IIB carcinomas showed no different characteristics from those with type III or type IIIe- carcinomas, except for the stage of the disease. On the other hand, those with type IIA carcinomas were associated with a higher male/female ratio, higher incidences of elevated appearance, differentiated histology, and mediastinal node metastasis, and a significantly lower survival rate as compared with patients with subcardia carcinomas. Multivariate survival analysis revealed that type IIA is a significant prognostic determinant, but that type IIB is not. CONCLUSION: Type IIA carcinomas should be treated as true cardia carcinoma; type IIB as subcardia carcinoma. Our results should be confirmed by a prospective study.     

PTCH1在胃食管连接部腺癌组织中的表达及临床意义

[目的]评价PTCH1在胃食管连接部腺癌（AEG）组织中的表达及意义。[方法]选择64例AEG组织、癌旁组织标本,应用RT-PCR和Western blot方法检测标本中PTCH1mRNA和蛋白的表达情况,并分析PTCH1蛋白的表达与AEG临床病理特征的关系。[结果]与癌旁组织相比,AEG组织中PTCH1 mRNA和蛋白的表达均明显下调,差异有统计学意义（P〈0.05）。PTCH1蛋白表达与AEG患者性别、年龄、肿瘤大小和淋巴结转移无关,与肿瘤分化程度有关（P〈0.05）。[结论]PTCH1在AEG组织中低表达可能与胃食管连接处腺癌的发生、发展相关。     

Comparison of preoperative concurrent chemoradiotherapy with chemotherapy alone in patients with locally advanced siewert II and III adenocarcinoma of the esophagogastric junction

Purpose

Preoperative therapy improves overall survival (OS) after surgery in patients with adenocarcinoma of the esophagogastric junction (AEG). We aimed to retrospectively analyze whether preoperative chemoradiotherapy (CRT) could improve the prognosis of patients with locally advanced Siewert II and III AEG comparing with preoperative chemotherapy alone (CT).

18FDG-PET-CT improves specificity of preoperative lymph-node staging in patients with intestinal but not diffuse-type esophagogastric adenocarcinoma

Introduction

The accuracy of preoperative lymph-node staging in patients with adenocarcinoma of the esophagogastric junction (AEG) or gastric cancer (GC) is low. The aim of this study was to assess the accuracy of [18F]fluorodeoxyglucose positron emission tomography/computed tomography (PET-CT) for lymph-node staging in patients with AEG or GC, with or without neoadjuvant treatment.

经胸与经腹食管裂孔手术治疗高龄食管胃结合部腺癌患者的近期效果比较

目的比较经胸与经腹食管裂孔手术治疗高龄食管胃结合部腺癌患者的近期效果。方法回顾性分析2013年8月至2016年2月江南大学附属医院行食管胃结合部癌切除术92例高龄患者临床资料,其中经左胸入路（经胸组）47例,经腹正中入路（经腹组）45例。比较两组患者的一般资料及手术时间、术中出血量、淋巴结清扫数目、术后住院时间及术后并发症的发生率。结果两组患者的手术时间、术中出血量和淋巴结清扫数目无统计学差异（均P≥0．05）。与经胸组相比,经腹组患者获取阳性淋巴结数目更多[（8．1±5．0）枚 vs．（5．1±4．4）枚,t＝3．000,P＝0．003],术后住院时间更短[（11．7±6．9）天vs．（15．9±7．4）天,t＝2．773,P＝0．007）],术后并发症发生率较低（13．3％ vs．44．7％,χ2＝10．895,P＝0．001）,其中肺部感染（2．2％ vs．14．9％,χ2＝4．649,P＝0．031）、心律失常（4．4％ vs 19．1％,χ2＝4．722,P＝0．030）发生率均较低。两组患者的吻合口瘘、切口感染、纵膈或胸腔感染的发生率均无统计学差异（均P≥0．05）。两组患者均无切缘阳性和围术期死亡病例。结论对于心肺功能差的高龄食管胃结合部腺癌患者,经腹食管裂孔入路比经胸入路手术在对心肺功能影响较小,能够显著降低术后并发症的发生率,缩短住院时间。