Distribution pattern of colorectal diseases based on 2300 total colonoscopies.

Aim: We conducted a cross-sectional study to estimate the prevalence of CRD in our area in East Azerbaijan, Iran.

Background: Colorectal diseases (CRD) include a broad spectrum that varies from benign lesions to malignant and cancerous masses. CRD can be investigated by colonoscopy.

Nitrate Determination of Vegetables in Varzeghan City, North-western Iran.

Background Vegetables play an important role in human nutrition. Nitrate content is a signifi-cant quality criterion to determine characteristic of vegetables. About 80% of nitrate intake in human is from vegetables and fruits.

Subsite distribution of gastric cancer in an area of high prevalence--northwest Iran.

Background: The aim of the present study was to determine subsites of gastric cancer in East Azerbaijan, Iran-a high incidence region for gastric cancer and Helicobacter pylori infection.

Methods: Data were collected from 2002 through 2007 from patients who sought treatment for gastrointestinal symptoms or signs at a university clinic and subsequently underwent upper gastrointestinal endoscopy.

Results: Cancer was diagnosed and histologically confirmed in 362 patients (352 adenocarcinomas).

Clinical predictors of colorectal polyps and carcinoma in a low prevalence region: results of a colonoscopy based study.

Aim: To estimate the prevalence of colorectal cancer (CRC) in patients with long lasting colonic symptoms undergoing total colonoscopy; and to establish clinical features predicting its occurrence.

Methods: This prospective study was carried out in Imam Hospital, Tabriz University of medical sciences, Iran. Continuous patients with long lasting lower gastrointestinal tract symptoms who had the criteria of a colonoscopy were included.

Colorectal neoplasms in symptomatic patients without evidence of bleeding: a prospective study in an Iranian population.

Background: Colorectal cancer (CRC) is a preventable disease with a high mortality and morbidity. Data on its prevalence are lacking in Iran, as well as for adenomatous polyps. This study was conducted to estimate prevalence of CRC in patients with long lasting colonic symptoms (except for known risk factors for cancer and those with rectal bleeding) who underwent total colonoscopy.

Clinicopathologic characteristics of esophageal cancer patients in northwest Iran--very low incidence of adenocarcinomas.

Aims: Iran is one of the known countries with a high incidence of esophageal cancer in Asia . We have recently shown that the incidence of Barrett's esophagus, a precancerous lesion for esophageal adenocarcinoma (AC) is very low in the northwest of the country. Therefore, we hypothesized that esophageal AC would also be lower than in the Western world.

Distribution of cancer and adenomatous polyps in the colorectum: study in an Iranian population.

Objective: There is consensus that the majority of colorectal carcinomas (CRCs) arise from adenomatous polyps. Therefore, for management of colorectal cancer, diagnosis and endoscopic resection of adenomas is advised. If the same etiologic factors are operating for polyps and cancers their anatomical distributions should be the same.

Demographic and anatomical survey of colorectal polyps in an Iranian population.

Objective: Asian countries generally have low incidences of colorectal cancers (CRCs). One approach to prevention is based on recognition and removal of polyps. The aim of this study was to determine basic demographic features, anatomic distribution and characteristics of colorectal polyps in a local Asian population for comparison with western data.

Endoscopic and histologic findings in Iranian patients with heartburn.

Background: Heartburn is a common manifestation of gastroesophageal reflux disease. Barrett's esophagus and esophageal adenocarcinoma, known complications of this disease, appear to be less prevalent in Asia than in Western countries. We looked for endoscopic and histologic evidence of Barrett's esophagus in Iranian patients with heartburn.