BACKGROUND Risk factors for poor bowel preparation are recognized to be independent of the type of bowel preparation method used. Patient and administrative factors influencing bowel preparation are known to vary in different healthcare systems. METHODS A prospective, cross-sectional study of patients undergoing colonoscopy in an Asian tertiary centre was conducted to identify risk factors as...

aim : the aim of this study was to report the anatomical location and histologic type of colorectal polyps in a large series of iranian patients that attended for colonoscopy. background : polyps that develop through the adenoma-carcinoma pathway are considered neoplastic and may eventually progress to invasive carcinomas. in addition polyps can develop with no neoplastic potential. these neopl...

BACKGROUND/AIMS Although a small amount of fecal material can obscure significant colorectal lesions, it has not been well documented whether bowel preparation status affects the missing risk of colorectal polyps and adenomas during a colonoscopy. METHODS We prospectively enrolled patients with one to nine colorectal polyps and at least one adenoma of >5 mm in size at the screening colonoscop...

BACKGROUND Successful cecal intubation (SCI) is not only a quality indicator but also an important marker in a colonoscopy trainee's progress. We conducted this study to determine factors predicting SCI in colonoscopy trainees, and to compare these factors before and after trainees achieve technical competence. METHODS Design of this study was a cross-sectional studies of two time series desi...

BACKGROUND The use of a transparent cap is regarded as a simple method to obtain better outcomes compared with standard colonoscopy. In this study, we investigated whether cap-assisted colonoscopy can improve the quality of procedure-related outcomes in patients with a history of colorectal resection. METHODS This study was designed as a prospective, randomized, controlled trial conducted at ...

Background. The purpose of this study is to determine if colonoscopy quality is associated with the annual case volume of endoscopists. Methods. A retrospective cohort study was performed on 3235 patients who underwent colonoscopy in the city of St. John's, NL, between January and June 2012. Data collected included completion of colonoscopy (CCR) and adenoma detection rates (ADR). Endoscopists ...

Modelling A decision model based on a Markov process was used to model the total costs and effectiveness of the three screening strategies. The timeframe of each cycle was one year. The model referred to a hypothetical population of 100,000 persons aged 50 years. If the annual FOBT is negative, patients have to wait for the next annual test and if positive, patients are referred to colonoscopy....

The authors review the place of faecal occult blood testing, sigmoidoscopy and total colonoscopy in the screening of colorectal cancer. Strategy in high risk patients is also discussed.