Evidence map›Paper›PMID 31065365›Full record

Trial reportUnited European gastroenterology journal2019

A prospective RCT comparing combined chromoendoscopy with water exchange (CWE) vs water exchange (WE) vs air insufflation (AI) in adenoma detection in screening colonoscopy.

J W Leung, A W Yen, H Jia, C Opada, A Melnik, J Atkins, C Feller, M D Wilson, F W Leung

Open access · bronzeAbstract readClinical Trial, Phase IVComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in United European gastroenterology journal, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.2field-weighted citation impact, top 19% of its field
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

4 citing papers in PubMed, 16 citations in OpenAlex.

  1. Trial
  2. Article
  3. UEG Week 2019 Oral Presentations.United European gastroenterology journal · 2019
    Article
  4. Article
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

9 authors at 4 institutions in 2 countries.

J W LeungSection of Gastroenterology, Sacramento Veteran Affairs Medical Center, Veteran Affairs Northern California Health Care System (VANCHCS), Mather, CA, USA.
A W YenSection of Gastroenterology, Sacramento Veteran Affairs Medical Center, Veteran Affairs Northern California Health Care System (VANCHCS), Mather, CA, USA.
H JiaDepartment of Gastroenterology, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi, China.
C OpadaSection of Gastroenterology, Sacramento Veteran Affairs Medical Center, Veteran Affairs Northern California Health Care System (VANCHCS), Mather, CA, USA.
A MelnikSection of Gastroenterology, Sacramento Veteran Affairs Medical Center, Veteran Affairs Northern California Health Care System (VANCHCS), Mather, CA, USA.
J AtkinsSection of Gastroenterology, Sacramento Veteran Affairs Medical Center, Veteran Affairs Northern California Health Care System (VANCHCS), Mather, CA, USA.
C FellerSection of Gastroenterology, Sacramento Veteran Affairs Medical Center, Veteran Affairs Northern California Health Care System (VANCHCS), Mather, CA, USA.
M D WilsonClinical and Translational Science Center, Department of Public Health Sciences, Division of Biostatistics, University of California, Davis, Sacramento, CA, USA.
F W LeungSepulveda Ambulatory Care Center, Veteran Affairs Greater Los Angeles Healthcare System (VAGLAHS) and David Geffen School of Medicine at UCLA, North Hills, CA, USA.
VA Northern California Health Care System · USAir Force Medical University · CNUniversity of California, Davis · USVA Greater Los Angeles Healthcare System · US

Funding

UC Davis Clinical and Translational Science CenterUL1TR001860 · NCATS · UNIVERSITY OF CALIFORNIA AT DAVIS · PI KENYON, NICHOLAS J., LYLES, COURTNEY REES · 2016 to 2025
$47.3M
Pilot and Feasibility ProgramP30DK041301 · NIDDK · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI ROZENGURT, JUAN ENRIQUE · 1990 to 2019
$18.0M
GASTROENTEROLOGYT32DK007180 · NIDDK · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI JENSEN, DENNIS MICHAEL · 1986 to 2025
$10.0M
NCATS NIH HHS UL1 TR001860NIDDK NIH HHS P30 DK041301NIDDK NIH HHS T32 DK007180
6 · The paper itself

Abstract

Background: A low adenoma detection rate (ADR) increases risks of interval cancers (ICs). Proximal colon flat polyps, e.g. serrated lesions (SLs), are difficult to find. Missed proximal colon flat lesions likely contribute to IC. Aims: We compared chromoendoscopy with water exchange (CWE), water exchange (WE) and air insufflation (AI) in detecting adenomas in screening colonoscopy. Methods: After split-dose preparation, 480 veterans were randomized to AI, WE and CWE. Results: Primary outcome of proximal ADR (55.6% vs 53.4% vs 52.2%, respectively) were similar in all groups. Adenoma per colonoscopy (APC) and adenoma per positive colonoscopy (APPC) were comparable. Detection rate of proximal colon SLs was significantly higher for CWE and WE than AI (26.3%, 23.6% and 11.3%, respectively, Conclusions: When an endoscopist achieves high-quality AI examinations with overall ADR twice (61.6%) the recommended standard (30%), use of WE and CWE does not produce further improvement in proximal or overall ADR. Comparable APC and APPC confirm equivalent withdrawal inspection techniques. WE alone is sufficient to significantly improve detection of proximal SLs. The impact of increased detection of proximal SLs by WE on prevention of IC deserves to be studied. This study is registered at ClinicalTrial.gov (NCT#01607255).

Indexed as

AdenomaAgedAirColonColonoscopyColorectal NeoplasmsColoring AgentsEarly Detection of CancerFemaleHumansIndigo CarmineInsufflationIntestinal MucosaMaleMass ScreeningMiddle AgedColoring AgentsIndigo CarmineWaterAdenoma detectionchromoendoscopyscreening colonoscopysessile serrated lesionswater exchange

Identifiers

PMID31065365
PMCPMC6488805
OpenAlexW2917403054

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.