Evidence map›Paper›PMID 25652842›Full record

Trial reportBMC gastroenterology2015

Cap assisted colonoscopy for the detection of serrated polyps: a post-hoc analysis.

Fadi Rzouq, Neil Gupta, Sachin Wani, Prateek Sharma, Ajay Bansal, Amit Rastogi

Abstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in BMC gastroenterology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Trial
  4. Review
  5. Review
  6. Standards of diagnostic colonoscopy for early-stage neoplasia: Recommendations by an Asian private group.Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society · 2019
    Article
  7. Observational
  8. Management of Serrated Polyps of the Colon.Current treatment options in gastroenterology · 2018
    Review
  9. Article
  10. Can Technology Improve the Quality of Colonoscopy?Current gastroenterology reports · 2016
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Fadi RzouqDepartment of Internal Medicine, Division of Gastroenterology and Hepatology, University of Kansas School of Medicine, Kansas City, KS, 66160, USA. frzouq@kumc.edu.
Neil GuptaDepartment of Gastroenterology, Loyola University Medical Center, Maywood, IL, 60153, USA. ngupta713@gmail.com.
Sachin WaniDepartment of Gastroenterology, University of Colorado and Veterans Affairs Medical Center, Aurora, CO, 80045, USA. sachin.wani@ucdenver.edu.
Prateek SharmaDepartment of Gastroenterology, University of Kansas School of Medicine, Kansas City Veterans Affairs Medical Center, Kansas City, MO, 64128, USA. psharma@kumc.edu.
Ajay BansalDepartment of Gastroenterology, University of Kansas School of Medicine, Kansas City Veterans Affairs Medical Center, Kansas City, MO, 64128, USA. abansal@kumc.edu.
Amit RastogiDepartment of Gastroenterology, University of Kansas School of Medicine, Kansas City Veterans Affairs Medical Center, Kansas City, MO, 64128, USA. arastogi@kumc.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundColonoscopy offers limited protection against right-sided colon cancer, a significant proportion of which arise from the serrated pathway of carcinogenesis. The aim of this study was to compare cap-assisted colonoscopy and standard high-definition white light colonoscopy regarding serrated polyps' detection.

methodsPost hoc analysis was performed of a previously conducted randomized controlled trial comparing standard and cap-assisted colonoscopy for adenoma detection. Randomization was stratified based on the indication of colonoscopy and all procedures were performed by three experienced endoscopists. Following cecal intubation, the colonic mucosa was carefully inspected during withdrawal of colonoscope and all polyps detected were documented for their size, location, morphology and then removed and sent for histopathology. Detection rates of significant serrated polyps between both arms were compared using the Fisher's exact test and Wilcoxon Rank Sum test.

results427 patients were enrolled (7 exclusions, 210 completed study in each arm, mean age of 61 years, 95% male, 75% Caucasian, 67% screening colonoscopies). There were no significant differences in baseline characteristics between both groups. Cap-assisted colonoscopy detected a significantly higher proportion of subjects with significant serrated polyps as well as a higher total number of significant serrated polyps compared to standard colonoscopy (12.8% vs. 6.6%, p =0.047 and 40 vs. 20,p = 0.03 respectively).

conclusionsIn this post-hoc analysis, Cap-assisted colonoscopy is a safe technique that offers a higher detection rate of significant serrated polyps when compared to standard colonoscopy. If confirmed in future trials, this simple technique has the potential to improve protection against interval colon cancers.

Indexed as

AdenomaColonic NeoplasmsColonic PolypsColonoscopyEarly Detection of CancerFemaleHumansMaleMiddle Aged

Identifiers

PMID25652842
PMCPMC4334853

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.