Reasons for Failure to Diagnose Colorectal Carcinoma at Colonoscopy

Leaper, Matthew; Johnston, Michael; Barclay, Murray L.; Dobbs, B. R.; Frizelle, Frank

doi:10.1055/s-2004-814399

Cited by 126 publications

(95 citation statements)

References 17 publications

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“…Failure to routinely intubate the cecum is in fact one of the reasons that limit colonoscopy's effectiveness; a study from Japan and another from New Zealand found that interval cancers were due to failure to reach the cecum, in 27% and 54% of cases respectively 33,34 . .…”

Section: Cecal Intubation Ratementioning

confidence: 99%

Colonoscopy Quality Assessment

Fayad

Kahi

2015

Gastrointestinal Endoscopy Clinics of North America

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Abstract:Colonoscopy is the cornerstone of colorectal cancer screening programs. There is significant variability in the quality of colonoscopy between endoscopists. Colonoscopy quality assessment tracks various metrics in order to improve the effectiveness of colonoscopy, aiming at reducing the incidence and mortality from colorectal cancer. Adenoma detection rate is the prime metric, as it is associated with the risk of interval cancers. Implementing processes to measure and improve the adenoma detection rate is essential to improve the quality of colonoscopy.

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Section: Cecal Intubation Ratementioning

confidence: 99%

Colonoscopy Quality Assessment

Fayad

Kahi

2015

Gastrointestinal Endoscopy Clinics of North America

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“…Numerous studies demonstrate that a significant proportion of patients with negative initial investigations have a bleeding source on repeat OGD in 35%-75% or repeat colonoscopy in 6% of cases [45,[71][72][73][74][75][76] . Thus a re-look endoscopy may be recommended as a cost-effective first step before further evaluation [7] .…”

Section: Endoscopymentioning

confidence: 99%

Evaluation and outcomes of patients with obscure gastrointestinal bleeding

Santhakumar

Liu

2014

WJGP

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Core tip: This article examines the role of current diagnostic modalities for the investigation of obscure gastrointestinal bleeding (OGIB) and outcomes in patients undergoing these investigations. Capsule endoscopy and double balloon enteroscopy remain the cornerstone of diagnostic and therapeutic management. The diagnostic and therapeutic capabilities of certain modalities are influenced by the nature of bleeding in OGIB. Longterm outcome data in patients with OGIB is limited but is most promising for capsule endoscopy.Santhakumar C, Liu K. Evaluation and outcomes of patients with obscure gastrointestinal bleeding. World J Gastrointest Pathophysiol 2014; 5(4

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“…Repeating a colonoscopy has a slightly lower yield, but it is a reasonable and necessary option if the previous colonoscopy was suboptimal because of incomplete or poor preparation. It has been shown that colonoscopy can fail in the diagnosis in 5% of colorectal tumors due to several reasons: an incomplete exploration, poor bowel preparation, misinterpretation of findings, inadequate biopsies of lesions [27] , or just not seeing the lesion.…”

Section: Etiologic Diagnosis Of Id Anemiamentioning

confidence: 99%

A guide to diagnosis of iron deficiency and iron deficiency anemia in digestive diseases

Bermejo

García-López²

2009

WJG

181

138

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Iron deficiency (ID), with or without anemia, is often caused by digestive diseases and should always be investigated, except in very specific situations, as its causes could be serious diseases, such as cancer. Diagnosis of ID is not always easy. Low serum levels of ferritin or transferrin saturation, imply a situation of absolute or functional ID. It is sometimes difficult to differentiate ID anemia from anemia of chronic diseases, which can coexist. In this case, other parameters, such as soluble transferrin receptor activity can be very useful. After an initial evaluation by clinical history, urine analysis, and serological tests for celiac disease, gastroscopy and colonoscopy are the key diagnostic tools for investigating the origin of ID, and will detect the most important and prevalent diseases. If both tests are normal and anemia is not severe, treatment with oral iron can be indicated, along with stopping any treatment with non-steroidal anti-inflammatory drugs. In the absence of response to oral iron, or if the anemia is severe or clinical suspicion of important disease persists, we must insist on diagnostic evaluation. Repeat endoscopic studies should be considered in many cases and if both still show normal results, investigating the small bowel must be considered. The main techniques in this case are capsule endoscopy, followed by enteroscopy.

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Reasons for Failure to Diagnose Colorectal Carcinoma at Colonoscopy

Cited by 126 publications

References 17 publications

Colonoscopy Quality Assessment

Colonoscopy Quality Assessment

Evaluation and outcomes of patients with obscure gastrointestinal bleeding

A guide to diagnosis of iron deficiency and iron deficiency anemia in digestive diseases

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