background : colorectal cancer is the most common cancer and the second leading cause of cancer deaths. annually it is the cause of more than 500000 deaths worldwide. therefore, detection and treatment of these tumors could potentially enhance recovery and improve prognosis. this study determines the frequency of colorectal tumors among patients who underwent colonoscopies in imam khomeini hosp...

postpolypectomy bleeding and perforation are the major complications of colonoscopy. this report presents a rare case of colon obstruction immediately after colonoscopy. a 56-year-old man underwent colonoscopy because of 6 months lower abdominal pain. colonoscopy revealed diverticulosis and multiple small sessile polyps in sigmoid colon. biopsy samples were taken from the polyps and the procedu...

In this note, we describe the design, implementation and our initial experience with an object warehouse specifically designed for selecting, computing and filtering very large collections of objects, each of which has a large number of attributes. The object warehouse is built on top of a persistent object This research was supported in part by DOE grant DE-FG02-92ER25133, and NSF grants IRI-9...

case presentation we report a case of idiopathic colonic varices, diagnosed at a routine colonoscopy performed for nespecific abdominal disturbances in a female patient without liver disease or pancreatic conditions responsible for portal hypertension development. conclusions the development of colonic varices in the absence of a certain trigger represents a major issue for practitioners due to...

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Abstract Aims Colonic perforation is an adverse event of colonoscopy. This around 1/1500 in diagnostic colonoscopy, 1/500 polypectomy procedures & 1/50 EMR procedure. study to evaluate the management colonic at a single centre. Methods Colonoscopy carried out on patients with colorectal cancer symptoms, family history, polyp surveillance. Retrospective since 2012 all colonoscopies evaluatio...

Abstract Background Gastrointestinal vascular malformations are rare benign neoplasms of the gastrointestinal tract, with rectosigmoid region being most frequently involved site. Patients often manifest recurrent, intermittent rectal bleeding, which might occasionally be life-threatening. Case presentation A 39-year-old man a history hemorrhoid operations twice was presented to our gastroentero...

This study focuses on the effects of news and advertising expenditures on corporate reputation. Both advertisement expenditures and the tone (or tenor) of business news exert a positive influence on corporate reputation. In addition, advertising expenditures were found to magnify the effects of the tone of the news. In particular, moderately educated customers are susceptible to the tone of the...

OBJECTIVE We aimed to determine the efficacy and safety of early (within the first 24 hour from application) endoscopy and colonoscopy in very elderly patients with GIS bleeding. METHODS In this study, 95 patients were included who underwent early endoscopy with the pre-diagnosis of upper GIS bleeding or endoscopy-colonoscopy with the pre-diagnosis of lower GIS bleeding between 2012 and 2016....

Background: Acute appendicitis after colonoscopy is a rare sequela and may be incidental or a true complication of colonoscopy. This review explores the cause and effect relationships between colonoscopy and the development of acute appendicitis. Methods: We conducted a systematic review of the literature to identify articles up to July 2011. The following time intervals were collated from docu...