Perinatal risk factors for cancer of the esophagus and gastric cardia: a nested case-control study.

BACKGROUND: We have previously hypothesized that preterm birth or impaired fetal growth may cause esophageal adenocarcinomas through gastroesophageal reflux early in life. In this study, we aimed to test if there is an association between gestational duration and birth weight on the one hand, and risk of esophageal and cardia adenocarcinoma on the other. METHODS: We conducted a nested case-control study of 67 cases of esophageal adenocarcinoma and 93 cases of cardia adenocarcinoma, whereas 50 cases of squamous cell carcinoma were studied for comparison. Birth records of cases were traced. Three matched controls per case were randomly selected. Perinatal data were extracted from birth records. RESULTS: Long gestational duration was associated with a decreased risk of cardia adenocarcinoma (P(trend) = 0.001) and a nonsignificant decreased risk of esophageal adenocarcinoma (P = 0.07), whereas no such association was found for esophageal squamous cell carcinoma (P = 0.96). Birth weight was not associated with risk of any of the studied cancers. Compared with lower maternal age (相似文献   

A case-control study of cancer of the esophagus and gastric cardia in Linxian

A case-control study involving interviews with 1,244 patients (758 males and 486 females) with cancer of the esophagus or gastric cardia and 1,314 population-based controls (789 males, 525 females) was carried out in Linxian, a rural county in North Central China with one of the world's highest mortality rates for these tumors. Cancer risks tended to rise with increasing intake of wheat and corn, but no association was found with adult intake of pickled vegetables, the leading a priori suspect, and risks were not elevated among those consuming low quantities of fresh vegetables or fruits. Few differences in preparation or storage of food or water were detected, although cancer patients reported less fluid intake than controls. Few persons reported drinking alcoholic beverages. Smoking was reported by 61% of the male cases and was a mild risk factor, related more to cancer of the cardia than of the esophagus. The risk was increased by 70% among those whose parents had esophageal or stomach cancer, but only slightly among those whose spouses had such cancers, suggesting that exposure early in life and/or genetic effects may be involved.     

Antioxidants and cancers of the esophagus and gastric cardia

Antioxidant vitamins have attracted considerable attention in previous studies of esophageal squamous-cell carcinoma, but dietary studies of adenocarcinoma of the esophagus and gastric cardia remain sparse. Treating these tumors as distinct diseases, we studied intakes of vitamin C, beta-carotene and alpha-tocopherol in a nationwide population-based case-control study in Sweden, with 185, 165, and 258 cases of esophageal adenocarcinoma, esophageal squamous-cell carcinoma, and gastric cardia adenocarcinoma, respectively, and 815 controls. Subjects with a high parallel intake of vitamin C, beta-carotene, and alpha-tocopherol showed a 40-50% decreased risk of both histological types of esophageal cancer compared with subjects with a low parallel intake. Antioxidant intake was not associated with the risk of gastric cardia adenocarcinoma. Separately, vitamin C and beta-carotene reduced the risk of esophageal cancers more than alpha-tocopherol. We found that antioxidant intake is associated with similar risk reductions for both main histological types of esophageal cancer. Our findings indicate that antioxidants do not explain the diverging incidence rates of the 2 histological types of esophageal cancer. Moreover, our data suggest that inverse associations with esophageal squamous-cell carcinoma and adenocarcinoma may be stronger among subjects under presumed higher oxidative stress due to smoking or gastroesophageal reflux, respectively. Our results may be relevant for the implementation of focused, cost-effective preventive measures.     

贲门癌切除,回结肠代食管及胃,贲门重建术

After having studied both the advantages and disadvantages of various reconstructive operations, an improved reconstructive operation, i.e. ileo-colon replacement of esophagus, stomach and cardia was performed to avoid regurgitation esophagitis after cardiectomy in gastric cardiac cancer. Twenty patients underwent such reconstructive operation. Clinical observation and measurement of intraluminal pressure in the upper digestive tract before and after operation showed that this kind of operation gave satisfactory short-term results, not only avoiding the regurgitation, but increasing the radical resection rate, reducing the other postoperative complications and improving the diet quantity intake also. This reconstructive operation is better than the traditional routine method and worthy of extensive use. Preparations before, during and after the operation, cooperation in manipulation during the operation are described.     

食管癌和贲门癌患者术后呼吸衰竭原因分析及防治

目的分析研究食管癌和贲门癌患者手术后发生呼吸衰竭的原因和治疗措施。方法应用SPSS统计软件Logistic回归分析及x^2检验,对114例呼吸衰竭患者的原因及死亡风险进行分析。结果因手术相关并发症引发的呼吸衰竭者40例（35．1％）,因严重呼吸道感染诱发的呼吸衰竭者43例（37．7％）,二者占全组的72．8％（83／114）。其他原因为麻醉清醒不完全或术中输液过量造成肺水肿、肺动脉栓塞、严重心律失常等。单因素和Logistic回归多因素分析发现,出现手术相关并发症者、术后并发症种类愈多者、术前肺功能差者、术前放疗者、术后第2天以后开始插管者、辅助呼吸时间愈长者、呼吸衰竭合并肺炎或‘肾衰者,其死亡危险性显著增加。其中前3者为显著独立致死因素,相对风险度分别为2．50,2．37和1．68;而与年龄、性别、手术治疗方式、术前合并疾病史、术前应用抗菌素等因素无显著相关性。结论食管癌和贲门癌患者术后发生呼吸衰竭多因手术相关的并发症和呼吸道感染所致。仔细谨慎的手术操作和术后防止严重并发症的发生,是避免食管癌和贲门癌术后发生呼吸衰竭的最重要措施。术后严密观察各项生命指征、及时插管或气管切开行机械通气辅助呼吸,是减少术后呼吸衰竭死亡的有效措施。     

Standard resection for cancer of the esophagus and cardia.

Standard techniques of esophagectomy are the most common operations currently performed for cancer of the esophagus and cardia. A review of the recent literature discloses a wide difference in findings and postoperative results. A review of the findings and results in 505 operations for cancer of the esophagus on one surgical service from January 1, 1970 to January 1, 1997 reveals a resectability rate of 90%, a hospital mortality rate of 3.3%, a postoperative complication rate of 33.9%, and an adjusted actuarial 5-year survival rate of 24. 7%. As yet, neither the use of neoadjuvant therapy nor extended techniques or resection, even when applied only in patients with low-grade lesions, have provided convincing evidence of their superiority over standard resection techniques.     

Adenocarcinoma of the esophagus and/or gastric cardia

One hundred twenty-nine adenocarcinomas involving the esophagus and/or gastric cardia differed significantly from 212 cancers of the rest of the stomach as follows: male-female ratio, 6:1 versus 2:1, birth outside Canada, US or UK, 12% versus 34%; parent or sibling with gastric cancer, 5% versus 13%; previous duodenal ulcer, 23% versus 9%; chronic reflux symptoms, 25% versus 3%; hiatal hernia, 51% versus 11%. Of the 129 esophagocardia cancers, 24 involved the esophagus alone, 48 the cardia and esophagus, 33 the cardia alone or cardia and fundus, and 24 the upper stomach and lower esophagus extensively. Thirty-four were associated with Barrett's esophagus. The 72 patients with involvement of both the upper stomach and lower esophagus (48 cardia and esophagus, 24 extensive) were identical with the esophagocardia group as a whole. The 24 patients with esophageal cancer and the 34 with Barrett's epithelium were the same clinically as the whole esophagocardia group except more had chronic reflux and hiatal hernia. The 33 patients with cancer confined to the cardia or cardia and fundus resembled the whole esophagocardia group but did not have Barrett's esophagus. Adenocarcinoma of the esophagocardia region is probably a different disease from cancer of the rest of the stomach.     

Multimodality therapy for cancers of the esophagus and gastric cardia

The role of multimodal treatment in the management of esophageal cancer is controversial. There are conflicting results from studies on the effect of neoadjuvant and/or adjuvant treatment on long-term survival. Following a search of the Medline database, the authors examine the results of randomized studies on the various treatment protocols available and discuss future therapeutic improvements.     

Multimodality therapy for cancers of the esophagus and gastric cardia

The role of multimodal treatment in the management of esophageal cancer is controversial. There are conflicting results from studies on the effect of neoadjuvant and/or adjuvant treatment on long-term survival. Following a search of the Medline database, the authors examine the results of randomized studies on the various treatment protocols available and discuss future therapeutic improvements.     

食管癌贲门癌切除术后应用机械进行粘膜吻合434例报告

目的探讨预防食管胃吻合口瘘和吻合口狭窄的方法。方法使用吻合器进行食管粘膜和胃粘膜吻合。结果４４２例中,手工吻合８例,机械吻合４３４例,吻合成功率为９８．２％,术中失误率为２．３％,术后并发症发生率为９．３％,死亡率１．４％,未发生食管胃吻合口瘘和吻合口狭窄。结论食管粘膜和胃粘膜机械吻合操作简单、可靠,即可缩短手术时间,有效地预防食管胃吻合口瘘和吻合口狭窄的发生,又可以切除足够长度的食管,降低切缘残癌的发生率,是食管癌和贲门癌切除术中食管胃吻合的理想方法。     

Loss of heterozygosity and immunohistochemistry of adenocarcinomas of the esophagus and gastric cardia.

PURPOSE: Adenocarcinomas of the distal esophagus and gastric cardia are two tumors that have many features in common. They have similar prognoses, treatment modalities, and patterns of dissemination. The etiology is different, with gastroesophageal reflux disease playing a major role for esophageal adenocarcinoma, in contrast to adenocarcinoma of the gastric cardia. In the present study, we investigated several genetic and immunohistochemical features of adenocarcinomas of the distal esophagus and gastric cardia. EXPERIMENTAL DESIGN: Sixty-two resection specimens of either adenocarcinoma of the esophagus or adenocarcinoma of the gastric cardia were carefully selected. The genetic analysis included loss of heterozygosity of several tumor suppressor genes known to be involved in esophagogastric carcinogenesis. Immunohistochemical studies included the analysis of p53, c-Met, c-erbB-2, beta-catenin, and cyclooxygenase-2. In addition, a mutation analysis of the Tcf1 gene was done by direct sequencing. RESULTS: Patients with cardiac carcinoma had a significantly worse tumor stage and poorer differentiation on histology. Loss of heterozygosity analysis did not reveal significant differences between esophageal adenocarcinoma and cardiac adenocarcinoma. Immunohistochemical analysis revealed significantly more nuclear accumulation of beta-catenin and overexpression of cyclooxygenase-2 in patients with esophageal adenocarcinoma, compared with patients with cardiac carcinoma. No mutation was found in the Tcf1 gene in either tumor type. CONCLUSIONS: Although adenocarcinomas of the distal esophagus and gastric cardia have many features in common, we have found some evidence that they might form two different entities.     

Dietary intake of heterocyclic amines and cancers of the esophagus and gastric cardia.

The results of two epidemiological studies suggest that high intake of heterocyclic amines, which are formed on the surface of meats cooked at high temperatures, might be associated with increased risk of esophageal or cardia cancers. Our aim was to further investigate heterocyclic amine intake and risk of these cancers. We examined data from a nationwide, population-based, case-control study of risk factors for adenocarcinoma of the esophagus and gastric cardia and squamous cell carcinoma of the esophagus in Sweden, with 185, 258, and 165 cases, respectively, and 815 controls. Heterocyclic amine intake was estimated based on the frequency of consumption and degree of surface browning of commonly fried meats, and the consumption of pan juices. Statistically nonsignificant 50-70% higher risks of esophageal squamous cell carcinoma were observed among individuals in the highest quartile levels of 2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline, 2-amino-3,4,8-trimethylimidazo[4,5-f]quinoxaline, and 2-amino-1methyl-6-phenylimidazo[4,5-b]pyridine relative to those in the lowest. Dose-risk trends were evident. Subjects reporting high intake of all three heterocyclic amines had an odds ratio of 2.4 (95% confidence interval, 1.2-4.8) relative to those with low intake of all three substances. In contrast, no association was found with risk of adenocarcinoma of the esophagus or gastric cardia. Heterocyclic amine intake might be associated with an increase in risk of squamous cell carcinoma of the esophagus. Given the dearth of epidemiological data regarding these cancers and the lack of established biological mechanisms, confirmatory data are needed.     

内镜切除治疗在早期食管癌和贲门癌及其癌前病变中的应用价值

目的 评价内镜套帽法切除早期食管癌、贲门癌及癌前病变的长期疗效和应用价值.方法 采用内镜套帽法切除早期食管癌、贲门癌及癌前病变147例(154个病灶),其中早期食管癌64例(69个病灶),癌前病变45例(47个病灶),病灶直径3～40 nm,平均(14.8±6.1)mm;早期贲门癌23例,癌前病变15例(均为单灶),病灶直径5～25 mm,平均(8.2±4.3)mm.全组病例均经病理证实.结果 全组有139个病灶被完全切除,完全切除率为90.3%.食管和贲门病灶的完全切除率均与病灶大小有关,病灶越大,完全切除率越低(P=0.001和P=0.014).147例患者中,内镜随访不足3年者66例,3～5年者31例,5～10年者43例,10年以上者7例.全组死亡11例,其中肿瘤复发死亡1例.早期食管癌和贲门痈的5年生存率分别为96.2%和100.0%.本组有5例(3.4%)患者发生术中出血,1例(0.7%)患者发生狭窄,无穿孔发生.结论 内镜黏膜切除治疗早期食管癌和贲门癌,符合其生物学特点,可达到传统手术治疗相同的长期疗效,亦适用于重度不典型增生的治疗.     

食管癌贲门癌切除术后近期并发症及死亡原因分析

目的进一步明确食管癌和贲门癌术后主要并发症及死亡原因。方法回顾分析我科１９７６年１月－１９９７年６月食管癌和贲门癌切除术后各种并发症７６５例和住院死亡８４例的临床资料。结果本组并发症发生率和住院死亡率分别为１３．４％（７６５／５７１９）和１．５％（８４／７６５）,并发症依次为切口感染、吻合口瘘、单纯脓胸、肺部及心血管疾病,死亡原因依次为心血管疾病、吻合口瘘、肺部疾病、脓胸和胃肠梗阻。结论吻合口瘘、心肺疾病、脓胸仍然是食管癌和贲门癌术后主要并发症和死亡原因。     

贲门癌发病危险因素的病例对照研究

目的 探讨贲门癌发病的危险因素.方法 选择食管癌高发区河北省磁县、河北省涉县、河南省林州市、山东省肥城市及胃癌高发区辽宁省庄河市,每个地区选择2008年1月以后发病的贲门癌50例.采用以人群为基础的1∶3配对病例对照研究,用专门设计的调查表,分别对250例患者和750例对照进行问卷调查.并采用SPSS 13.0软件COXREG命令拟合条件Logistic回归模型,对相关变量进行分析.结果 单因素分析显示,吸烟、饮酒、饮食不规律、就餐姿势不正确、饮食口味重、常吃干果干菜、腌制食品、油炸食品、热烫食品、消化系统疾病史、胃食管反流性疾病可增加贲门癌发病的危险性,多吃豆类食品、体质指数(BMI)≥25则为保护因素.多因素分析显示,消化系统疾病史、常吃干果干菜、饮食不规律、常吃烫热食品、常吃腌制食品、吸烟、胃食管反流性疾病是贲门癌发病的危险因素,比值比(OR)分别为42.889、5.932、4.911、4.144、3.287、2.355和1.930;常吃豆类食品、BMI≥25是贲门癌发病的保护性因素,OR值分别为0.254和0.492.结论 生活行为习惯是贲门癌发病的重要影响因素,在高发区人群中开展健康教育,干预其不良生活行为和饮食习惯,将有助于降低贲门癌的发病率.