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PubMedDate not supplied

[Geographical differences in esophageal neoplasm mortality in Rio Grande do Sul].

Mortality data from cancer of esophagus were studied in the 24 microregions of the State of Rio Grande do Sul (RS), Brazil, from 1970 to 1989, in males and females. The mortality data were calculated through information from the Health Department of RS and the population was obtained in IBGE and FEE. The average, the standard deviation and, by linear regression, the angular parameter of the temporal series for the State and each microregion, were calculated. We noticed great differences between the average of death rates in the 24 microregions, with values between 16.49 to 4.74, in males. The microregions of the south of the State, where there are many farms, revealed higher death rates of mortality by esophageal cancer. The tendency showed to be ascending in 54% of the microregions, in the males.

Brazil↗
PubMed1975

[Radiotherapy of esophageal neoplasms].

This is a report about experiences on 205 patients with malignant tumors of the esophagus in the years 1960-1974 who have been submitted to a primary or post-operative high voltage therapy. The periods of survival have been studied with regard to the age, localization of the tumor, growth of the tumor and different therapy and compared with the data of the world literature.

Adult↗
PubMedDate not supplied

[Surgical treatment of esophageal neoplasms as Belsey approach (author's transl)].

The surgery of carcinoma of the esophagus has undoubtedly made an enormous progress during the last thirty years. This progress is particularly due to advances in anesthesia, resuscitation, postoperative care but in a larger part to the development of new techniques. Our own experience shows indeed that the Belsey approach is a favorable technique. In our opinion this approach is the base of significant increase in resection possibilities. Moreover, it permits a maximal extension of the resection and gives better prospects of reconstruction, with an acceptable mortality. For the patient, for whom no resection is possible, a bypass procedure can still be performed. this solution is preferred to the introduction of a tube, which is bad procedure with a mediocre quality of survival.

Colon↗
PubMed1987

Hexokinase isoenzymes in the diagnosis of gastric and esophageal neoplasms.

Using a method of electrophoretic separation on agar gel, the hexokinase (HK) isoenzymes were determined in biopsies from patients with gastric and esophageal cancer and nonmalignant diseases (gastric benign tumors and gastritis) as well as in biopsies from healthy people. In the malignant neoplasms studied, a significant elevation of HK-II and the appearance of additional anodal bands (HK-IIf and HK-III) have been demonstrated. As a rule, the HK isoenzyme spectrum in gastric polyps was similar to that of normal mucosa and characterized by a predominance of HK-I. Changes in the HK isoenzyme composition in gastric mucosa with intestinal metaplasia were expressed in lesser degree but had similar cancerous tendency. The HK isoenzyme analysis in biopsy samples may be used for differential diagnosis of malignant and benign tumors, and/or as definite diagnostic implication of an early sign of malignancy in the study of premalignant lesions.

Biopsy↗
PubMed1985

[The ND-Yag laser in the treatment of non-resectable esophageal neoplasms: evaluation and results].

The Authors show a set of 9 cases of patients suffering from oesophagus flaky carcinoma, judged radically non-operable, and treated with endoscopic laser-therapy by N.D. Yag Laser. They illustrate the patients' main clinical data, method followed, complications observed and results obtained. What seems to emerge from the analysis of the data is: the effectiveness of laser-therapy in the control of disphagia, simplicity of the technique and its acceptability by the patient, as well as the rareness of complications. Three are the clinical parameters used for the checking of patients before and after the laser treatment: disphagia, odynophagia and thoracic ache. The intenseness of symptoms was classed from 0 up to 3. Before the treatment, six patients out of nine showed class 3 disphagia; after the treatment, two could assume fluids (class 2), two fed also on minced foods (class 1), and two fed normally; in the two cases with initial class 2 disphagia a normal feed could be adopted; in one case no initial disphagia was present. Odynophagia was initially present in one case only at class 3, in three cases at class 1, and in all the other cases it was absent (0). After the treatment, odynophagia disappeared totally, except in one class 1 case, which remained unchanged. The presence of thoracic ache before the treatment was class 1 in four cases, class 3 in one case, and absent in four cases. After the treatment, the class 3 ache turned into class 1: in one class 1 case it was not modified; in the remaining cases the ache, if present, disappeared. Some questions remain opened, concerning the effect on survival, even in relation to other palliative methods, to the duration of the palliation obtained and to the eventual associability of lasertherapy to radiotherapy.

Aged↗
PubMed1996

[The combined radiochemotherapy of inoperable esophageal neoplasms: a feasibility study].

January, 1994, through January, 1995, eighteen patients (17 men; median age: 59.9, range: 32-73) with biopsy-proved squamous cell carcinoma (n = 15), adenocarcinoma (n = 2) or undifferentiated carcinoma (n = 1) of the esophagus were treated with concurrent chemo-radiotherapy. All patients had inoperable lesions for unresectable disease (11 patients) or concomitant illness (7 patients); median Karnofsky score was 70 (range: 60-80). According to the 1988 American Joint Committee on Cancer Staging system, one patient was graded as Stage IIA (T2N0 + oropharyngeal cancer T4N1), two Stage IIB (T2N1), twelve Stage III (8 T3N1, 1 T4N0, 3 T4N1) and three Stage IV (2 T3N0M1, 1 T4N0M1). Treatment consisted of two courses of chemotherapy by cisplatin (75 mg/m2 i.v. on days 1 and 29) and 5-FU (1000 mg/m2/24 hours by continuous infusion from days 1 to 4 and from days 29 to 32) along with one course of concomitant radiotherapy at 45 Gy (1.8 Gy per fraction, one fraction per day and 5 fractions a week). After 15-30 days, the patients were treated with a boost dose of 7 Gy by high-dose-rate intraluminal brachytherapy. All patients are assessable for toxicity and seventeen for response. The combined treatment was generally well tolerated, with only one case of WHO grade III toxicity (thrombocytopenia). Eight of the eighteen patients had a complete response (47%); four a partial response (24%); four a minimal response (24%) and one showed stable disease (5%). Only one patient developed local progression, and four distant metastases. All the eight patients with CR are alive without local recurrence (two distant metastases) with a mean follow-up of 6 months. This treatment regimen provides good local tumor resolution with no major toxicity. The value of this study protocol will be determined by the rate of long-term survivors.

Adenocarcinoma↗
PubMed1996

[Bi- and tridimensional reconstruction with spiral computerized tomography in esophageal neoplasms. Preliminary clinical applications].

Spiral CT allows rapid data acquisition in an entire anatomical region during a single breath-hold and permits to obtain 2D and 3D reconstructions with good diagnostic accuracy. We investigated the capabilities of spiral CT reconstructions in demonstrating esophageal cancers. Spiral CT was performed in 10 patients with esophageal cancers and in 3 patients who underwent endoprostheses placement with surgical or interventional procedures. Bidimensional (MPR, CPR, MIP) and three-dimensional reconstructions with Shaded Surface Display (SSD) were obtained at the end of each exam. In the analysis of the results, CT reconstructions were compared with previous barium esophagography. Some of the main semiologic patterns were considered: tumor visualization, longitudinal extent of the neoplasm and its relationships with adjacent structures. MPRs were obtained in 9 patients and allowed to visualize the esophageal lumen with a filling defect, the neoplastic mass and its longitudinal and extraluminal extent. SSD reconstructions was obtained in 7 patients and allowed a good assessment of longitudinal neoplasm extent in 6 patients. Neoplastic mass visualization and extraluminal tumor extent were difficult to assess in all cases. MIP reconstructions were obtained in all patients and demonstrated longitudinal neoplasm extent with good accuracy. Neo-plastic tissue was visualized only indirectly through the filling defect of the esophageal lumen. MIP allowed to define, in 5 patients, the relationships of the neoplasms with adjacent vascular structures after the intravenous administration of contrast agent. In conclusion, we consider that Spiral CT reconstructions can be useful for a more accurate staging of esophageal cancers.

Esophageal Neoplasms↗
PubMedDate not supplied

[SURGICAL TREATMENT OF ESOPHAGEAL NEOPLASMS]

This report includes the experience of a surgical team from "Edgardo Rebagliati" Hospital, the Social Security Hospital in Lima, Peru. From 1987 to 1997 we carry out surgical management of epidermoid and glandular esophageal cancer having registered 74 cases. 52.7% of the cases had epidermoid cancer and 42.8% had adenocarcinoma. We had one case of primary melanoma and one case of primary lymphoma which were also subjected to esophagectomy. Almost all patients were in stages III and IV. Only one patient was considered to be in stage I, and one in stage II. These last ones have experienced more than 6 years of postoperatory survival. 67.4% of the patients showed tabaquism, alcoholism or both antecedents. In 50% of the cases the tumor was located in the lower third; in 45.9% it was located in the middle third, and in 4.05% in the upper third. 62.1 % of the patients were subjected to esophagectomy and gastrectomy of the upper third in block plus cervical esophagogastroplasty. 18.9% were subjected to total esophagogastrectomy and esophagocoloplasty, 14.8% were subjected to cervical esophagogastroplasty with gastric tube made with a major curvature and without esophagectomy. One patient was subjected to total pharyngothyroid esophagectomy with anastomosis at orofaringeal level due to pharyngoesophagic epidermoid cancer, including radical cervical dissection. The operative and perioperative mortality was of 4.05%, the morbidity was: 33.7% due to respiratory causes; 20.2% due to cervical fistula with spontaneous closure and 4.05% due to severe mediastinitis. Patients left the hospital at the 15th day average and began their oral feeding between the 10th and 14th day after the surgery. In all cases a progressive recovery of the nutritional level and the improve of life quality were achieved.

Journal Article↗
PubMed1996

Alterations of transforming growth factor-beta 1 receptor type II occur in ulcerative colitis-associated carcinomas, sporadic colorectal neoplasms, and esophageal carcinomas, but not in gastric neoplasms.

BACKGROUND & AIMS: Gastric cancers, sporadic colorectal cancers, and ulcerative colitis (UC)-associated colorectal carcinomas and dysplasias manifest microsatellite instability (MI); however, esophageal carcinomas rarely exhibit MI. Recently, a transforming growth factor-beta 1 type II receptor (TGF-beta 1RII) mutation in a coding microsatellite was described in primary colorectal carcinomas demonstrating MI. No previous studies of TGF-beta 1RII have addressed mechanisms of inactivation other than MI in human tumors; furthermore, MI-negative tumors have not been examined for TGF-beta 1RII mutation. We evaluated 138 primary human neoplasms for mutation in the poly-A microsatellite tract of TGF-beta 1RII. Additionally, a group of esophageal tumors was evaluated for the expression of TGF-beta 1RII messenger RNA (mRNA). METHODS: First, we determined whether MI was present at other chromosomal loci in these lesions. The poly-deoxyadenine (poly-A) microsatellite tract within the TGF-beta 1RII coding region was then PCR-amplified. In a group of MI-negative esophageal tumors, RT-PCR was performed to determine the expression of TGF-beta 1RII mRNA. RESULTS: Among 17 MI+ UC specimens, 3 (18%) demonstrated TGF-beta 1RII poly-A tract mutation (2 cancers and 1 dysplasia), while 2 (4%) of 44 MI-negative UC specimens (1 dysplasia and 1 tumor), and 13 (81%) of 16 MI+ sporadic colorectal cancers, contained TGF-beta 1RII poly-A mutation. No gastric or esophageal tumors contained TGF-beta 1RII mutation. Among 21 MI-negative esophageal carcinomas. 6 cases (28.5%) had TGF-beta 1RII transcripts that were low or undetectable by RT-PCR. CONCLUSIONS: Mutation within the poly-A microsatellite tract of TGF-beta 1RII occurs early in a subset of UC-neoplasms and commonly in sporadic colorectal cancers, but may be rare in MI+ gastric tumors. Diminished expression of TGF-beta 1RII mRNA in esophageal tumors suggests that mechanisms of inactivation in this gene other than MI play a role in esophageal carcinogenesis.

Colitis, Ulcerative↗
PubMedDate not supplied

[Thoracic esophageal neoplasm-therapeutical problems and post-surgery evolution].

The authors are presenting a few considerations on Thoracic Esophageal Neoplasm, as resulted from an 18-cases study performed on patients that were operated between 1994-1999. The esophageal resection rate was of 50%, as follows: 7 Esophageal Resections and 2 Superior Polar Esogastric Resections. The digestive transit was reestablished by means of intrathoracic transposition of the stomach (6 cases) or of the right ileo-colon (2 cases). In one of the cases an Esogastric Anastomosis was performed at the neck level (cervical-right). Immediate post-op mortality after Esophageal Resection (1 case) was due to an acute respiratory distress syndrome (ARDS). The post-op complications were as follow: one anastomotic fistula associated with a purulent pleurisy, 4 non-infectious pulmonary complications and 2 cardiac complications (paroxysmal supraventricular tachycardia). The Discussions and Conclusions of the present work are presenting samples of surgical techniques, post-op complications and prognosis.

Aged↗
PubMed2002

Changing role of in vivo models in columnar-lined lower esophagus.

Columnar-lined lower esophagus (CLE) or Barrett's esophagus (BE) is caused by chronic reflux of the gastrointestinal tract and can progress to invasive adenocarcinoma. However, the pathophysiology, cell of origin, and management of this condition is incompletely understood. This review evaluates the role of in vivo models in resolving these debates. A search was performed on the Ovid and Pub Medline for 1964-2001 and Cochrane Collaboration. The keywords used were adenocarcinoma, animal model, Barrett's esophagus, columnar-lined esophagus, esophageal neoplasms, and esophageal carcinogenesis. All relevant papers were scrutinized and an attempt at tabulation was made. In vivo models have been used at several stages of debate on the pathophysiology of BE. They provide conclusive evidence for its acquired nature secondary to duodenogastroesophageal reflux. The cell of origin of experimental BE may arise from adjacent columnar epithelium, basal layer multipotent cells, or esophageal glands. Experimental work on BE is lacking in assessing therapeutic modalities.

Adenocarcinoma↗
PubMed2002

The impact of upper GI endoscopy referral volume on the diagnosis of gastroesophageal reflux disease and its complications: a 1-year cross-sectional study in a referral area with 260,000 inhabitants.

OBJECTIVES: Less than half of patients with gastroesophageal reflux disease (GERD) have endoscopic erosive esophagitis (endoscopy positive GERD). Symptomatic GERD and Barrett's esophagus (BE), however, are risk factors for esophageal and gastric cardia adenocarcinomas. The aim of the present study was to examine the prevalence of GERD-related findings on endoscopy according to the volume of referrals to upper GI endoscopy. METHODS: The following data were gathered on all GERD patients who were sent for upper GI endoscopy by general practitioners (GPs) during 1 yr in our hospital referral area of 260,000 inhabitants: the number of referrals to endoscopy in health care units, and the numbers of endoscopy positive GERD, BE, and esophageal neoplasms. Patients with symptoms or signs suggesting acute upper GI bleeding and those attending follow-up endoscopy (e.g., for BE, peptic ulcer, or dysplasia) were excluded, as were patients with previous esophagogastric surgery or Helicobacter pylori eradication therapy. RESULTS: The study population consisted of 3378 patients, with a mean age of 58.1 yr (95% CI = 57.5-58.6) and a male:female ratio of 1:1.3. Of the 760 patients who underwent endoscopy because of heartburn or regurgitation, 254 (33.4%) had endoscopy positive (erosive) GERD, 11 (1.4%) BE (one with esophageal adenocarcinoma), six (0.8%) esophageal ulcer, and one peptic esophageal stricture (0.1%). Between health care units, the referrals to endoscopy (number of endoscopies/population/yr) varied from 0.6 to 9.2/1000 inhabitants/yr (median 3.3/1000/yr). In health care units with "high" referral volumes (> or = 3.3 referrals/1000/yr, N = 15, 1297 patients) and "low" referral volumes (< 3.3/1000/yr, N = 15, 2081 patients), the numbers of endoscopy positive GERD were 281 (21.7%) versus 308 (14.9%, p < 0.001), esophageal ulcer 13 (1.0%) versus 14 (0.7%, p = 0.3), esophageal stricture five (0.4%) versus seven (0.3%, p = 0.4), Barrett's esophagus eight (0.6%) versus 16 (0.8%, p = 0.6), and esophageal neoplasm two (0.2%) versus six (0.3%, p = 0.2). Five of the neoplasms were squamous cell carcinomas, two were adenocarcinomas, and one was lymphoma. Multivariate analyses showed that independent risk factors for endoscopy positive GERD were male sex (OR = 1.4, 95% CI = 1.2-1.7), GERD symptoms (OR = 3.3, 95% CI = 2.7-4.0), dysphagia (OR = 1.4,95% CI = 1.0-2.1), and living in a high referral area (OR = 1.4, 95% CI = 1.2-1.7). Independent risk factors for BE were male sex (OR = 2.6, 95% CI = 1.1-6.1) and GERD symptoms (OR = 2.9, 95% CI = 1.3-6.6), whereas the only independent risk factor for esophageal neoplasm was dysphagia (OR = 40.0 (95% CI = 7.7-207.5). CONCLUSIONS: There is a wide variation in GPs' referrals for endoscopy. Increasing the referral volume significantly increases the proportion of endoscopy positive GERD cases, but not that of GERD complications such as BE, esophageal ulcer, peptic stricture, or esophageal neoplasms.

Adenocarcinoma↗
PubMed2006

Three-dimensional MDCT imaging and CT esophagography for evaluation of esophageal tumors: preliminary study.

The aim of this study was to determine whether multidetector computed tomography (MDCT) imaging, including CT esophagography (CTE), can be used as a comprehensive imaging test for esophageal tumors. Twenty-three patients with esophageal neoplasms underwent MDCT with esophageal distension and endoscopy. Of them, 20 underwent barium study. Two radiologists independently reviewed MDCT images with 3D CT esophagography (CTE) including CT endoscopy and were asked to determine the presence of the esophageal lesions and characterize them using a five-point confidence scale. The radiologists' performance for the lesion detection and characterization was evaluated by receiver operating characteristic (ROC) analysis. They were also requested to determine the local staging of esophageal cancer, and the overall accuracies of MDCT for local staging were calculated. The ability of MDCT with CTE was also evaluated compared with conventional studies. CTE images successfully revealed 14 of 16 esophageal cancers and all seven submucosal tumors. Two esophageal cancers, both confined to the mucosal layer, were undetected. The Az values of the MDCT images were 0.954-0.957 for determining the presence of a lesion and 0.954-0.995 for differentiating between cancer and submucosal tumors. The overall accuracies for T and N staging were 42.9% and 85.7%, respectively. In 80% and 74% of cases, CTE gave similar or superior information to barium study and endoscopy, respectively. MDCT esophagography has the potential to serve as a comprehensive imaging modality for evaluating esophageal tumors as it provides accurate information regarding the detection and characterization of esophageal tumors as well as the similar information to conventional studies.

Adenocarcinoma↗
PubMed2001

Combined chemotherapy and radiotherapy (without surgery) compared with radiotherapy alone in localized carcinoma of the esophagus.

BACKGROUND: Esophageal carcinoma can be managed primarily with either a surgical or radiotherapeutic (non surgical) approach. Strategies to improve the outcome of either modality alone include the use of combined modalities. Combination chemotherapy radiotherapy is one approach that has been explored over the years with increasing application in clinical practice especially in North America. OBJECTIVES: To evaluate the effectiveness of combined chemotherapy and radiotherapy versus radiotherapy alone in the outcome of patients with localized esophageal carcinoma. Outcomes of interest include overall survival, cause specific survival, local recurrence, dysphagia relief, quality of life, acute and chronic toxicities. SEARCH STRATEGY: The Cochrane strategy for identifying randomized trials was combined with MeSH headings including esophageal neoplasms, radiotherapy, chemotherapy combined modality, drug therapy combination. Medline, Cancerlit and Embase were searched using this strategy. In addition, the Cochrane library was also searched. References from relevant articles and personal files were included. SELECTION CRITERIA: Randomized controlled trials in patients with localized esophageal cancer, with one arm employing radiotherapy alone, and one arm employing combination radiotherapy chemotherapy were included. Studies comparing non chemotherapy agents such as pure radiotherapy sensitisers, immunostimulants, planned esophagectomy, were excluded. DATA COLLECTION AND ANALYSIS: Data were extracted by two independent reviewers, and the trial quality was assessed using both the Jadad scoring and Detsky checklist. Sensitivity analysis was planned to explore sources of heterogeneity where heterogeneity existed. The factors hypothesized a priori included combination versus sequential treatment, quality of study, biological effective radiotherapy dose (i.e. Radiotherapy dose) cisplatin versus non cisplatin containing trials, and 5FU versus non 5FU containing trials. Odds Ratio (OR) and 95% confidence limits were used to assess the significance of the difference between the treatment arms. Absolute risk difference and number needed to treat (NNT) were used to express the magnitude of difference where appropriate. MAIN RESULTS: Thirteen randomized trials were included in the analysis. There were eight concomitant and five sequential radiotherapy and chemotherapy (RTCT) studies. The studies were analyzed separately due to observed heterogeneity across all the studies and biological considerations. Concomitant RTCT provided significant overall reduction in mortality at 1 and 2 years. The mortality in the control arms was 67% and 86% respectively. Combined RTCT provided an absolute reduction of mortality by 9% (95% CI 2-17%) and 8% (95% CI 1-17%) respectively. Expressed as NNT, this is 11 and 10 respectively. At longer follow up, the results were heterogeneous, cautioning against pooling of the data. There was a reduction in the overall local recurrence rate. The local recurrence rate for the control arms was in the order of 69%. Combined RTCT provided an absolute reduction of local recurrence rate of 5% (95% CI 4-26%) with a NNT of 7. There was significant increase of severe and life threatening toxicities with a NNH of 6, with this approach. With the sensitivity analysis, there was a suggestion that cisplatin based and 5FU based chemotherapy studies were reasonable regimens to employ when using this strategy. The results from the sequential RTCT studies were heterogeneous and could not be pooled. Factors hypothesized a priori did not identify any single source that could account for a significant component of the heterogeneity. Examining the results individually, there was no data to support clinical benefit. This approach was also accompanied by significant toxicities. REVIEWER'S CONCLUSIONS: When a non-operative approach is selected, then concomitant RTCT is superior to the RT alone. This approach is accompanied by significant toxicities. In patients who are in good general condition, and the risk benefit has been thoroughly discussed with the patient, concomitant RTCT should be considered for the management of esophageal cancer compared with radiotherapy alone.

Combined Modality Therapy↗
PubMed2001

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.

Adult↗