同期食管癌和胃癌的临床特征和预后分析

目的 探讨同期发生食管癌和胃癌的临床特征和影响预后的因素.方法 收集1979年6月至2005年4月就诊的44例同期食管鳞状细胞癌和胃腺癌患者的临床资料,用Kaplan-Meier曲线法和Log-rank检验进行生存率分析和患病风险因素的单因素分析,用COX比例风险模型进行多因素分析.结果 患者年龄41～77岁;有肿瘤家族史者占22.7%;其中胃癌易被漏诊.5年总生存率27%,中位生存期22个月;切除术后5年生存率33%,中位生存期31个月.单因素和多因素分析均显示胃癌淋巴结转移和手术根治程度是影响预后的独立因素.结论 手术切除是同期发生食管癌和胃癌主要的治疗方式.注重淋巴结清扫,尽量做到根治性切除,可能有利于改善患者的预后.     

Clinical studies on the transabdominal resection of esophagocardial cancer and cervical anastomosis using bypass methods. Analysis of data on 76 patients

Transabdominal resection for esophagocardial cancer and reestablishment of alimentary continuity using bypass methods were performed in 76 patients. Thirteen underwent a bypass with a gastric tube and in 30, a colonic segment was prepared. In the remaining 33, a jejunal segment was used as a bypass organ, with considerable success. The 5 year survival rates were 68.8 per cent in those with stages (I+II), 16.5 per cent in those with stage III, 12.6 per cent in those with stage IV and 22.5 per cent in all cases, indicating similar results compared to those with cancer located in the upper third of the stomach with the limited proximal extension within the esophagocardial junction and operated on during the same period.     

Clinical studies on the transabdominal resection of esophagocardial cancer and cervical anastomosis using bypass methods. Analysis of data on 76 patients

Transabdominal resection for esophagocardial cancer and reestablishment of alimentary continuity using bypass methods were performed in 76 patients. Thirteen underwent a bypass with a gastric tube and in 30, a colonic segment was prepared. In the remaining 33, a jejunal segment was used as a bypass organ, with considerable success. The 5 year survival rates were 68.8 per cent in those with stages (I + II), 16.5 per cent in those with stage III, 12.6 per cent in those with stage IV and 22.5 per cent in all cases, indicating similar results compared to those with cancer located in the upper third of the stomach with the limited proximal extension within the esophagocardial junction and operated on during the same period.     

Water and sodium transport in different parts of the nephron in glomerulonephritis patients with nephrotic syndrome

Altogether 34 patients with the nephrotic syndrome (NS) of chronic glomerulonephritis (CGN) were studied for lithium clearance (CLi). Eleven patients with edemas were enrolled in group I, 18 subjects without pronounced edemas, in group II. Out of them 7 patients suffered from membrane proliferative glomerulonephritis (group III), 7, from mesangioproliferative glomerulonephritis (group IV), 4 subjects had focal glomerulosclerosis (group V); chronic renal failure (CRF), stages IIb-IIIa, was diagnosed in 7 patients enlisted in group VI. The control group consisted of 11 virtually healthy persons. On the CLi basis the authors identified the proximal excretory water fraction (EFpH2O), the distal excretory fraction of the water (EFdH2O) and the distal excretory fraction of sodium (EFdNa). The controls demonstrated the mean values of the parameters considered: 16.18 +/- 1.56 ml/min; 19.88 +/- 1.63; 7.19 +/- 1.16 and 4.38 +/- 7.76 per cent, respectively. Decreased CLi was revealed in groups I and II. Versus the controls patients enrolled in group II demonstrated a significant decrease of EFpH2O (11.91 +/- 2.22 per cent; p less than 0.05) and an increase of EFdH2O (16.81 +/- 3.26 per cent; p less than 0.05). A great individual variance of the parameters considered (from 1.32 to 55.63 per cent and from 2.33 to 118 per cent, respectively) hindered to reveal the difference between group I and the controls.(ABSTRACT TRUNCATED AT 250 WORDS)     

Operative treatment of benign gastric ulcers

Between the years 1953 and 1963, 1,583 patients at the Henry Ford Hospital were recorded as having gastric ulcer. Of this number 150 (9.4 per cent) underwent operative treatment. Failure to respond favorably after medical treatment and suspicion of malignancy prompted surgical intervention most often.Two operative approaches were commonly employed. Gastric resection plus vagotomy with Billroth I reconstruction was utilized in fifty-three patients. Gastric resection with vagotomy and Billroth II reconstruction was the procedure of choice in twenty-nine patients. Thus, eighty-two patients had gastric resection with vagotomy. There were four recurrences in this group (5 per cent). The second largest group of patients were those upon whom gastric resection was performed without vagotomy. The Billroth I reconstruction was performed thirty-one times and the Billroth II procedure was employed twenty-one times. There were nine recurrences in fifty-two patients, a recurrence rate of nearly 17 per cent. Clearly, in this study, gastric resection with vagotomy gave better results (5 per cent recurrence) than did gastric resection alone (17 per cent recurrence). The over-all recurrence rata for 150 patients was approximately 11 per cent.In eight patients the clinical diagnosis was benign ulcer when, in fact, malignancy was present. In two patients, the tumor was lymphoma. Only one of ten patients died of tumor. Excellent follow-up studies were possible in every patient with a malignant lesion. Adequate gastric resection is effective for these small, unsuspected ulcerocarcinomas.There were four postoperative deaths, a mortality rate of 2.7 per cent. Two patients died of myocardial infarction and two died of pulmonary emboli.     

Co-carcinogenic effects of several Korean foods on gastric cancer induced by N-methyl-N'-nitro-N-nitrosoguanidine in rats

In study I, 48 ACI and Fisher inbred rats were given MNNG 100 micrograms/ml, with or without 1 per cent or 3 per cent red pepper diet; in study II, 164 Sprague-Dawley rats given MNNG 100 micrograms/ml, with or without 5 per cent or 10 per cent NaCl; in study III, 181 Wistar rats given MNNG 83 micrograms/ml with or without maejoo 10 gm per cent/diet; in study IV, 78 Wistar rats given MNNG 83 micrograms/ml with or without ginseng extract 150 micrograms/ml; in study V, 120 Wistar rats given MNNG 83 micrograms/ml with or without retinyl palmitate 150,000 IU/kg. Except for study II (28 weeks), all rats were fed the diets for 37 weeks and were examined at 38 weeks or 40 weeks. In study I, tumor incidence in rats fed a red pepper diet and MNNG solution were 57 per cent (ACI rats, 1 per cent red pepper) and 63 per cent (Fisher rats, 1 per cent or 3 per cent red pepper) which were higher than control group (44 per cent, 43 per cent); in study II, gastric cancer, 61.9 per cent (10 per cent NaCl-MNNG), 27.3 per cent (control); in study III, gastric cancer, 14.8 per cent (maejoo-MNNG), 24 per cent (control); in study IV, malignant tumor of gastroduodenum, 3.4 per cent (ginseng-MNNG), 32.1 per cent (control); in study V, forestomach papilloma, 10.7 per cent (retinoid-MNNG), 29.4 per cent (control), and cancer in duodenum and small intestine, 50.0 per cent (retinoid-MNNG), 17.6 per cent (control). Thus, gastric carcinogenesis was enhanced by red pepper and a high salt diet, was inhibited by a maejoo and ginseng diet and was not effected by vitamin A.     

Surgical management of carcinoma of the hypopharynx and cervical esophagus: analysis of 209 cases

BACKGROUND: Free jejunal transfer has become the standard technique for reconstruction of the pharynx and hypopharynx, especially with proximal neoplastic lesions, whereas gastric tube interposition is the technique of choice for reconstruction of the hypopharynx and cervical esophagus when resection extends below the thoracic inlet. HYPOTHESIS: Surgical ablation is a viable option for advanced hypopharyngeal and cervical esophageal neoplasms, with stomach interposition a safe and preferred method of reconstruction. DESIGN: Retrospective analysis. SETTING: University hospital that is a regional referral institution for esophageal cancer treatment and complex digestive reconstructions after esophagectomy. PATIENTS: We reviewed the records of 209 patients who underwent total pharyngolaryngectomy between May 1982 and July 1999. The majority of patients had advanced cancer: hypopharyngeal in 131 cases and cervical esophageal in 78 cases. INTERVENTIONS: Pharyngolaryngectomy and total esophagectomy with pharyngogastric anastomoses (n = 127); pharyngolaryngectomy, cervical esophagectomy, and reconstruction with free jejunal transplant (n = 77); and pharyngolaryngectomy and total esophagectomy with pharyngocolic anastomoses (n = 5). MAIN OUTCOME MEASURES: Postoperative mortality and morbidity, long-term survival, and prognostic factors influencing survival. RESULTS: The postoperative in-hospital mortality rate was 4.8% (10 patients), with a postoperative morbidity rate of 38.3%. Alimentary continuity was achieved using the stomach (127 patients), colon (5 patients), or free jejunal autograft (77 patients). The 1-year and 5-year survival rates were 62% and 24%, respectively. There was no significant difference with regard to the survival between gastric transposition and free jejunal autograft, but there were fewer complications in the gastric pull-up group (33% vs 47%, P<.05). The significant adverse factors affecting survival were tumor cervical localization, postoperative complications, disease stages pT3 and pT4 for the cervical esophageal tumors, microscopic pharyngeal penetration, or incomplete resection. The significant beneficial factors were tumor hypopharyngeal localization and postoperative radiotherapy. CONCLUSIONS: Surgical ablation is a viable option for advanced hypopharyngeal and cervical esophageal neoplasms, with stomach interposition the preferred method of reconstruction. Although the prognosis is poor, satisfactory short-term palliation can be achieved. The significant adverse factors affecting survival should be taken into account to select the candidates for surgery.     

Sentinel node navigation surgery in early-stage gastric carcinoma: a limited gastric resection with lymphatic basin dissection in sentinel node-negative patients

The high accuracy of sentinel node biopsy in clinical T1 gastric cancer leads to the idea of excluding conventional D2 from node-negative patients. The question now arises of what to do when sentinel nodes are missed during surgery and micrometastases are over looked in frozen tissue sections. To avoid and correct a mistaken diagnosis, surgeons should remove the lymphatic basin even in the case of negative sentinel nodes, because the basin is exclusively associated with the involved nodes. We call this procedure "lymphatic basin dissection." Gastric lymphatic basins were divided into five compartments corresponding to the feeding artery, and clinical T1 gastric cancer involved a single basin in 42% of patients, two in 47% and three in 12%. Patients with one or two basins can be treated with limited gastric resection, because the devascularization does not cause insufficient blood supply to the remnant stomach. Since 1995, 123 patients have undergone lymphatic basin dissection and limited gastric resection (segmental resection, local resection, proximal gastrectomy, and limited distal gastrectomy) in our institution. There was no recurrence in the limited surgery patients with a median follow-up period of 3.8 years. The overall survival curve after surgery in the limited group is almost the same as that in the conventional group. Quality of life was significantly higher in the limited group than in the conventional group.     

Co-carcinogenic effects of several Korean foods on gastric cancer induced by N-methyl-N′-nitro-N-nitrosoguanidine in rats

In study I, 48 ACI and Fisher inbred rats were given MNNG 100 μg/ml, with or without 1 per cent or 3 per cent red pepper diet; in study II, 164 Sprague-Dawley rats given MNNG 100 μg/ml, with or without 5 per cent or 10 per cent NaCl; in study III, 181 Wistar rats given MNNG 83 μg/ml with or without maejoo 10 gm per cent/diet; in study IV, 78 Wistar rats given MNNG 83 μg/ml with or without ginseng extract 150 μg/ml; in study V, 120 Wistar rats given MNNG 83 μg/ml with or without retinyl palmitate 150,000 IU/kg. Except for study II (28 weeks), all rats were fed the diets for 37 weeks and were examined at 38 weeks or 40 weeks. In study I, tumor incidence in rats fed a red pepper diet and MNNG solution were 57 per cent (ACI rats, 1 per cent red pepper) and 63 per cent (Fisher rats, 1 per cent or 3 per cent red pepper) which were higher than control group (44 per cent, 43 per cent); in study II, gastric cancer, 61.9 per cent (10 per cent NaCl-MNNG), 27.3 per cent (control); in study III, gastric cancer, 14.8 per cent (maejoo-MNNG), 24 per cent (control); in study IV, malignant tumor of gastroduodenum, 3.4 per cent (ginseng-MNNG), 32.1 per cent (control); in study V, forestomach papilloma, 10.7 per cent (retinoid-MNNG), 29.4 per cent (control), and cancer in duodenum and small intestine, 50.0 per cent (retinoid-MNNG), 17.6 per cent (control). Thus, gastric carcinogenesis was enhanced by red pepper and a high salt diet, was inhibited by a maejoo and ginseng diet and was not effected by vitamin A. Presented at the 85th Congress of the Japan Surgical Society, April 1985, in Sendai, Japan     

What is the value of tracheobronchial fibroscopy in the assessment of esophageal cancer?

The aim of this study is to evaluate the role of bronchoscopy in the assessment of resectability of esophageal carcinomas. From 1981 to 1986, 125 patients were referred for a carcinoma of the esophagus. Bronchoscopy was performed in 105 cases. Patients were classified into 3 groups: group I: normal bronchoscopy (58 cases: 55.2%); group II: compression, localized inflammation (35 cases: 33.3%); Group III: invasion (12 cases: 11.5%). Tracheo-bronchial abnormalities were found whatever the site of the esophageal carcinoma: 60% of cases for the upper third, 40% for the middle third and 36% for the lower third. They were significantly more frequent when the esophageal tumor was larger than 5 centimeters. Correlation with CT scan was good in 75% of cases. Sensitivity and specificity of these two exams were similar and they appeared to be complementary. In group I, resection was impossible or palliative for bronchial reasons in 10% of cases, while resection was impossible or palliative in 35% of cases in group II. Lastly, resection was curative in 73.5% of cases in group I and in only 39% of cases in group II. Bronchoscopy must be systematically performed in carcinoma of esophagus. It may predict the palliative nature of resection if abnormalities are present, and may contraindicate the resection when invasion of the bronchial tree is discovered.     

Surgical therapy in Barrett's esophagus.

Seventy-six patients with Barrett's esophagus were cared for during a 10-year period. Fifty-six patients (74%) presented with complications of the disease. There were 20 strictures, 7 giant ulcers, 11 cases of dysplasia, and 29 patients with carcinoma. In patients with benign disease, 93% had mechanically defective sphincters and 83% had peristaltic failure of the lower esophageal body. Esophageal pH monitoring showed excessive esophageal exposure to pH less than 4 in 93% and excessive exposure to pH more than 7 in 34% of the patients tested. Ninety-three per cent of patients with excessive alkaline exposure had complications, compared to only 44% with normal alkaline exposure (p less than 0.01). Gastric pH monitoring, serum gastrin levels, and gastric acid analysis supported a duodenal source for the alkaline exposure. Antireflux surgery was performed using Nissen fundoplication in 30, Belsey partial fundoplication in 3, and Collis-Belsey gastroplasty in 2. Six required resection with colon interposition. Good symptomatic control was achieved in 77% after antireflux surgery. Four patients had symptoms and signs of duodenogastric reflux; three required a bile diversion procedure. Fifteen patients had an en bloc curative resection with colon interposition. One patient with high-grade dysplasia on biopsy was found to have intramucosal carcinoma after simple esophagectomy. Five tumors were intramucosal, seven were intramural, and four were transmural. Lymph node involvement occurred only in the latter two. Actuarial survival 5 years after curative resection was 53%. Median survival time for patients after palliative resection or no resection was 12 months. Study of en bloc specimens indicated that extent of resection should be adapted to extent of disease: esophagectomy for intramucosal disease, en bloc esophagectomy with splenic preservation for intramural and transmural disease. Serum CEA was useful in detecting recurrent disease after surgery when the primary tumor stained positively for CEA.     

Regional pancreatectomy for cancer of the pancreas,ampulla and other related sites

Regional pancreatectomy refers to anen bloc removal of a tumor in or adjacent to the pancreas with an adequate soft tissue margin and with its regional lymphatic draingae. The pancreatic segment of portal vein is part of theen bloc resection with venous reconstruction by end-to-end anastomosis without a graft. This operation, called a Type I regional pancreatectomy, may utilize either a total or subtotal removal of the pancreas. Localized arterial involvement by a neoplasm necessitates adding a segmental resection of the artery with vascular reconstruction, a Type II procedure. Sixty-one patients have had this procedure from 1972 through December 1982. Thirty-four patients had an infiltrating duct adenocarcinoma of the pancreas, 22 had other malignant tumors, 4 were classified as having pancreatitis, and a fifth had a pseudolymphoma. The resectability rate is about 30 per cent. The present operative mortality rate is 4 per cent by 30 days and 8 per cent after 30 days. One-third of the patients are presently alive; 45 per cent of the 22 patients with malignant tumors other than infiltrating duct adenocarcinoma of the pancreas are alive with a median survival time of 39 1/2 months ranging from 3 to 92 months. More than 80 per cent of patients with infiltrating duct adenocarcinoma of the pancreas had advanced stage of the disease (T3 or T4 and Stage II or III cancers); twenty-one per cent are presently alive, 29 per cent died of recurrent disease, and 24 per cent died of other causes. The optimal treatment for patients with cancers in the region of the head of the pancreas is a regional subtotal pancreatectomy Type I or Type II followed by adjuvant chemotherapy.     

Results of surgery on 6589 gastric cancer patients and immunochemosurgery as the best treatment of advanced gastric cancer.

Results of 6589 gastric cancer operations at the Department of Surgery, Seoul National University Hospital, from 1970 to 1990 were reported. About two thirds (76.6%) were advanced gastric cancer (stages III and IV). The 5-year survival rate of operated stage III gastric cancer was only 30.6%, with frequent recurrence. Conversely, cell-mediated immunities of advanced gastric cancer patients were significantly decreased. Therefore, to improve the cure rate and to prevent or delay recurrence, curative surgery with confirmation of free resection margins and systematic lymph node dissection of perigastric vessels were performed and followed by early postoperative immunotherapy and chemotherapy (immunochemosurgery) in stage III patients. To evaluate the effect of immunochemosurgery, two randomized trials were studied in 1976 and 1981. In first trial, 5-fluorouracil, mitomycin C, and cytosine arabinoside for chemotherapy and OK 432 for immunotherapy were used. The 5-year survival rates for surgery alone (n = 64) and immunochemosurgery (n = 73) were 23.4% and 44.6%, respectively, a significant difference. In the second trial, there were three groups: group I, immunochemosurgery (n = 159); group II, surgery and chemotherapy (n = 77); and group III, surgery alone (n = 94). 5-Fluorouracil and mitomycin C for chemotherapy and OK-432 for immunotherapy were administered for 2 years. The 5-year survival rate of group I was 45.3%, significantly higher than the 29.8% of group II and than the 24.4% of group III. The postoperative 1-chloro-2.4-dinitrobenzene test, T-lymphocyte percentage, phytohemagglutinin- and con-A-stimulated lymphoblastogenesis and the antibody-dependent cell-mediated cytotoxicity test showed more favorable values in the immunochemosurgery group. Therefore, immunochemosurgery is the best multimodality treatment for advanced gastric cancer.     

骨巨细胞瘤的治疗及复发病例分析

目的分析骨巨细胞瘤（giant cell tumor of bone，GCT）患者的临床特点、治疗方法及复发相关因素，探讨GCT治疗方法的选择。方法分析1993年1月～2005年1月收治的获随访的GCT患者38例，男13例，女25例。年龄14～59岁，平均31．1岁。经术前穿刺活检及术后证实为GCT，总结其临床特点并进行同顾性分析。所有患者均经病理诊断证实，Campanicci’s放射学分级：I级5例，Ⅱ级22例，Ⅲ级11例。按Enneking分期：I期9例，Ⅱ期21例，Ⅲ期8例。Jaffe’s病理分级：I级7例，Ⅱ级24例，Ⅲ级7例。29例GCT位于膝关节周围（股骨远端13例，胫骨近端16例），股骨近端、尺骨近端、桡骨远端、骶尾部各2例，腰椎1例。3种基本手术方法分别为：单纯刮除植骨4例；刮除植骨＋磨钻、石碳酸、50％ZnCl2、3％碘酒、骨水泥等辅助治疗26例；瘤段截除8例。结果38例术后获随访12～144个月，平均67个月。4例行单纯刮除植骨均复发；8例行瘤段切除，术后无复发；26例刮除植骨＋辅助灭活方法，8例复发。按Campanicci’s放射学分级：I级5例无复发，Ⅱ级22例复发6例，Ⅲ级11例复发6例。按Enneking分期：I期9例复发2例，Ⅱ期21例复发6例，Ⅲ期8例复发4例。术后共复发12例，复发率31．6％，均位于膝关节周围，复发时间为2～36个月，平均14．3个月。复发12例患者均行二次手术治疗，其中8例选择瘤段切除，4例行刮除植骨＋辅助灭活方法，术后均无复发。结论GCT术后复发多发生于膝关节周围，以胫骨侧为主，Campanicci’s放射学分级的Ⅱ级和Ⅲ级，且临床表现侵蚀性较高者。单纯刮除植骨复发率较高，正确使用辅助方法结合现代广泛刮除技术及现代的诊疗技术是降低复发率的重要手段。     

Malignant left-sided large bowel obstruction managed by subtotal/total colectomy

Of 60 patients presenting with acute obstructing carcinoma of the left colon, 49 underwent immediate resection either by radical subtotal/total colectomy (31 patients, group I) or by radical segmental resection (18 patients, group II) of whom three had immediate anastomosis after on-table bowel irrigation and 15 had a planned staged procedure. The operative mortality rate was 3 per cent in group I and 11 per cent in group II (not a statistically significant difference). However, substantial differences were found for major morbidity (6 versus 44 per cent in groups I and II respectively; P less than 0.01) and mean length of hospital stay (17 days in group I versus 35 days in group II; P less than 0.05). All three patients who had on-table lavage developed anastomotic leaks which necessitated a second operation to form a stoma. Six patients (19 per cent) in group I required antidiarrhoeal medication in the immediate postoperative period. However, subsequent improvement in stool frequency was noted in all patients. It is concluded that subtotal/total colectomy is an acceptable means of managing patients with obstructing carcinoma of the left colon in that it is associated with a low morbidity and mortality rate and good functional results.     

Prognostically unfavorable factors in esophagus cancer. II. Value of diagnostic significance

The analysis of data of 121 patients with esophageal carcinoma treated at the Department of Surgery, Landeskrankenhaus Klagenfurt, between 1969 and 1982 revealed that neither histological type nor tumor grading had any significant influence on survival time (p = greater than 0,158). However, tumor localization and length influenced the chance of survival; the more proximal the tumor the poorer the chance to survive more than one year (p = 0,0008); patients with tumors less than 6 cm in length had a better chance of survival (p = 0,031). Cures were achieved only after resection for stage I. Resections for stage II and III did not show any difference in prognosis (p = 0,879). Although no cures could be achieved by surgery, the 1-year survival chance was increased threefold (p = 0,041). In the absence of contraindications, resection should be carried out even when mediastinal lymphnodes are involved by tumor.     

Surgical management of and long-term survival after adenocarcinoma of the cardia

BACKGROUND: The choice of surgical strategy for patients with adenocarcinoma of the oesophagogastric junction is controversial. This study was performed to analyse the surgical results of a 20-year experience with these lesions. METHODS: From January 1981 to January 2001, 126 patients with adenocarcinoma of the cardia underwent resection in the authors' institution. The treatment of choice was oesophagectomy for type I tumours, and extended gastrectomy for type II and III lesions. Morbidity, mortality and survival were determined retrospectively. RESULTS: Fifty-six patients (44.4 per cent) had type I tumours, 44 (34.9 per cent) type II and 26 (20.6 per cent) type III. Primary resection was performed in 113 patients (89.7 per cent). Oesophagectomy with resection of the proximal stomach was carried out in 65 patients (51.6 per cent) and extended total gastrectomy with transhiatal resection of the distal oesophagus in 61 (48.4 per cent). In-hospital mortality and morbidity rates were 4.8 and 34.1 per cent respectively. The overall 3- and 5-year survival rates were 40.9 and 25.1 per cent respectively, and were not affected by the surgical approach. Survival was significantly associated with R0 resection, pathological node-positive category, postoperative complications and tumour differentiation. CONCLUSION: Postoperative mortality, morbidity and long-term survival did not appear to be affected by surgical approach. Further prospective studies are needed to confirm the equivalence between transthoracic and transabdominal approaches.     

Cephalic pancreaticoduodenectomy for adenocarcinoma of the head of the pancreas: does pylorus preservation change morbidity and prognosis?

STUDY AIM: To evaluate the influence of a pylorus-preserving on the morbidity and prognosis of patient with pancreaticoduodenectomy for adenocarcinoma of pancreas. PATIENTS AND METHODS: Between 1985 and 1999, 183 patients were operated on for pancreatic adenocarcinoma. Among them, 63 patients (40 men, mean age 63 years, range 41-77 years) had curative resection and were included in this retrospective study. They were classified according to the type of resection. In the group I, the procedure included a pylorus-preserving pancreaticoduodenectomy (n = 35). In the group II, the procedure included polar inferior gastrectomy (n = 28). The prognosis was compared. Parameters for comparison were rate of local recurrence, rate of metastatic evolution and duration of survival. RESULTS: The operative length and mortality rate (group I: 0%, group II: 3%), general (p = 0.37) and specific morbidity (p = 0.30), frequency of delayed gastric emptying were similar in the 2 groups (group I: 20%, group II: 35%, p = 0.88). The duration of naso-gastic aspiration was shorter in the group I (6 days vs 8, p = 0.01). The prognosis was the same in the 2 groups (metastasis: group I: 39%, group II: 56%, p = 0.12, local recurrence: group I: 58%, group II: 43%, p = 0.09, mean survival: group I: 18 months, group II: 19 months, p = 0.77). CONCLUSION: These results suggest that pylorus preserving pancreatoduodenectomy could be performed for patients with adenocarcinoma of the head of the pancreas and does not compromise survival.     

Pleural lavage cytology in esophageal cancer without pleural effusions: clinicopathologic analysis.

OBJECTIVE: The literature of pleural lavage cytology (PLC) is focused on lung cancer. We conducted this pilot study to determine the incidence of malignant pleural cytologies in patients without pleural effusions who undergo curative resection for esophageal cancer, and to evaluate the clinicopathologic significance of positive cytology. METHODS: Forty-eight patients underwent esophagectomy for thoracic esophageal cancer in our unit from January 1998 to January 1999. After thoracotomy, pleural lavage was performed before any intrathoracic manipulation and cytologically evaluated. RESULTS: There was one patient with stage I, 27 patients with stage II, and 20 patients with stage III cancer of the thoracic esophagus. The mean age was 55 years (range 41-77 years). Fifteen cases (31.3%) were found to have positive lymph nodes (N1). Squamous cell carcinoma was the dominant histopathologic type (91.7%). Positive lavage cytology in the whole group was found in 18.8% (9/48). There was no significant correlation to gender, age, clinical symptoms, histology, T or N status, TNM stage, or tumor location. CONCLUSIONS: The incidence of positive pleural lavage cytology in esophageal cancer is disconcertingly high. Positive cytology might suggest a more aggressive tumor biology. Future studies on its relation to survival and occult lymphatic metastasis are warranted.     

Effect of Massive Small Bowel Resection on Gastric Acid Secretion in the Rat

The phenomenon of a transitory gastric acid hypersecretory state after extensive bowel resection is well established. Its time of onset, however, is unknown. The purpose of this study was to determine the immediate effect of massive small bowel resection (MSBR) on gastric acid secretion (GAS). An anesthetized innervated rat model was prepared with gastric and jugular cannulae. Three groups of animals were studied: group I (n = 12), basal unstimulated state; group II (n = 12). pentagastrin (Ps) 16 pg/kg h-¹ stimulated: and group III (n = 16), 5% liver extract meal (LEM) stimulated. Each group consisted of experimental animals that underwent 95% MSBR from proximal jejunum to terminal ileum and control animals that remained intact. Acid output was determined by extragastric titration with 0.1 M NaOH. Blood was taken for basal and postprandial serum gastrin levels. Basal acid output (peq/10 min) significantly increased immediately after MSBR in all groups (p <. 01). Ninety minutes following MSBR, acid outputs were significantly elevated in basal and Pg-stimulated but not LEM-stimulated rats. Serum gastrin increased from 30 ± 1 to 56 ± 6 pg/mL (p <. 01) in group I rats and from 81 ± 28 to 129 ± 13 pg/mL in group III rats (p = NS). We conclude that GAS increases immediately after MSBR in group I and II rats. This increase in GAS may be mediated by gastrin release.