Patient factors influencing the completion rate in colonoscopy

Dafnis, George; Granath, Fredrik; Påhlman, Lars; Ekbom, Anders; Blomqvist, Peter

doi:10.1016/j.dld.2004.09.015

Cited by 110 publications

(66 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, risk reduction might be different for both locations of colorectal cancer for several reasons, including incompleteness of colonoscopy (4) or suggested differences in mechanisms of tumorigenesis (5)(6)(7).…”

Section: Introductionmentioning

confidence: 99%

Potential for Colorectal Cancer Prevention of Sigmoidoscopy Versus Colonoscopy: Population-Based Case Control Study

Brenner¹,

Chang‐Claude

Seiler

et al. 2007

Cancer Epidemiology, Biomarkers &Amp; Prevention

View full text Add to dashboard Cite

We aimed to estimate the proportions of colorectal cancer cases that might be prevented by sigmoidoscopy compared with colonoscopy among women and men. In a populationbased case control study conducted in Germany, 540 cases with a first diagnosis of primary colorectal cancer and 614 controls matched for age, sex, and county of residence were recruited. A detailed lifetime history of endoscopic examinations of the large bowel was obtained by standardized personal interviews, validated by medical records, and compared between cases and controls, paying particular attention to location of colorectal cancer and sex differences. Overall, 39%, 77%, and 64% of proximal, distal, and total colorectal cancer cases were estimated to be preventable by colonoscopy. The estimated proportion of total colorectal cancer cases preventable by sigmoidoscopy was 45% among both women and men, assuming that sigmoidoscopy reaches the junction of the descending and sigmoid colon only and findings of distal polyps are not followed by colonoscopy. Assuming that sigmoidoscopy reaches the splenic flexure and colonoscopy is done after detection of distal polyps, estimated proportions of total colorectal cancer preventable by sigmoidoscopy increase to 50% and 55% (73% and 91% of total colorectal cancer preventable by primary colonoscopy) among women and men, respectively. We conclude that colonoscopy provides strong protection against colorectal cancer among both women and men. The proportion of this protection achieved by sigmoidoscopy with follow-up colonoscopy in case of distal polyps may be larger than anticipated. Among men, this regimen may be almost as effective as colonoscopy, at least at previous performance levels of colonoscopy. (Cancer Epidemiol Biomarkers Prev 2007;16(3):494 -9)

show abstract

Section: Introductionmentioning

confidence: 99%

Potential for Colorectal Cancer Prevention of Sigmoidoscopy Versus Colonoscopy: Population-Based Case Control Study

Brenner¹,

Chang‐Claude

Seiler

et al. 2007

Cancer Epidemiology, Biomarkers &Amp; Prevention

View full text Add to dashboard Cite

show abstract

“…A study done by Dafnis et al reported an inability to complete optical colonoscopy on 19% of 5,145 patients (84). Completion rates were found to be influenced by sex, age, indication, surgical history, and presence of diverticulosis (84).…”

Section: Incompletion Ratesmentioning

confidence: 99%

Current Status of CT Colonography

Frentz¹,

Summers²

2006

Academic Radiology

View full text Add to dashboard Cite

In 2006, over 55,000 Americans are expected to die of colorectal cancer (CRC) (1). It is estimated that there is over a 5% chance that an American will develop CRC in their lifetime and over a 2% chance that an American will die from CRC (2). Fortunately, in most cases, controlling CRC is possible with the proper screening methods and the subsequent removal of suspicious polyps, adenomas, and carcinomas. If CRC is detected at an early stage, the 5-year survival rate is 90%. Unfortunately, less than 40% of colorectal cancers are detected at an early stage. Once the cancer has developed distant metastases, the 5-year survival rate is less than 10% (2).From 1998 to 2002, the incidence rate of CRC decreased by 1.8% per year, which is believed to have occurred due to increased awareness of the importance of CRC screening and consequent polyp removal (2). However, CRC is still predicted to cause about 10% of all cancer-related deaths in the United States in 2006. Relatively accurate screening methods are available to patients, but patient participation in CRC screening continues to be low. Computed tomography colonography (CTC) is a relatively new screening technology that aims to achieve a high patient acceptance, diagnostic accuracy, and screening effectiveness thereby decreasing mortality rates due to CRC.

show abstract

“…Patient factors that have been identified to be associated with insufficient colonoscopy are female sex, increasing patient age, diverticular disease, and history of abdominal surgery. Additional factors that have been reported are a low body mass index, history of constipation, or laxative use [17][18][19]. Much of endoscopy training is aimed at ourvercoming these unfavorable features so that all patients receive high-quality, safe colonoscopy.…”

Section: The Patientmentioning

confidence: 99%

An unmet medical need: Advances in endoscopic imaging of colorectal neoplasia

Stallmach

Schmidt

Watson

et al. 2011

Journal of Biophotonics

View full text Add to dashboard Cite

Gastrointestinal cancer is a major public health problem worldwide. Detection of early neoplastic lesions in gastrointestinal tract is essential for cure, because prognosis and survival are related to the size and stage of malignant lesions. Endoscopic screening and treatment of polyps could prevent approximately 80% of colorectal cancer (CRC). However, white‐light endoscopy is an imperfect technology since miss rates of up to 25% have been reported and polyps without malignant potential were treated without benefit but with additional costs and risks to the patient. There are several known “human” predictors of an inadequate colonoscopy. These include patient characteristics such as poor bowel preparation, female gender, or inpatient status. Skills of the endoscopists are also an important issue. Therefore, a variety of advanced technologies has been attempted to overcome these issues. These new endoscopic imaging techniques allow a more precise classification of mucosal alterations with selection of patients for invasive therapy or surveillance. Further, molecular and functional imaging techniques could identify novel targets for therapies and new prospects to access response to therapies. However, at the “end of the day” a better endoscopic approach for CRC screening and surveillance depends on a good bowel preparation, a trained endoscopist spending sufficient time on a detailed examination together with an advanced endoscope. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

show abstract

Patient factors influencing the completion rate in colonoscopy

Cited by 110 publications

References 26 publications

Potential for Colorectal Cancer Prevention of Sigmoidoscopy Versus Colonoscopy: Population-Based Case Control Study

Potential for Colorectal Cancer Prevention of Sigmoidoscopy Versus Colonoscopy: Population-Based Case Control Study

Current Status of CT Colonography

An unmet medical need: Advances in endoscopic imaging of colorectal neoplasia

Contact Info

Product

Resources

About