Evidence map›Paper›PMID 33214162›Full record

Trial reportGut2021

Multicentre randomised controlled trial on virtual chromoendoscopy in the detection of neoplasia during colitis surveillance high-definition colonoscopy (the VIRTUOSO trial).

Kesavan Kandiah, Sharmila Subramaniam, Sreedhari Thayalasekaran, Fergus Jq Chedgy, Gaius Longcroft-Wheaton, Carole Fogg, James F Brown, Samuel Cl Smith, Marietta Iacucci, Pradeep Bhandari

Registry-linked trialOpen access · hybridAbstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Gut, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02822352 (A Comparison Of High Definition White Light And High Definition Virtual Chromoendoscopy For The Detection Of Intraepithelial Neoplasia In Longstanding Colitis), which is not on this map. Cited by 32 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 2 pooled it
3.0field-weighted citation impact, top 7% 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.

NCT02822352 nacompletednot on this map

A Comparison Of High Definition White Light And High Definition Virtual Chromoendoscopy For The Detection Of Intraepithelial Neoplasia In Longstanding Colitis: A Randomised Controlled Trial

TypeinterventionalSponsorPortsmouth Hospitals NHS TrustRan2016 to 2018Enrolled204ConditionsUlcerative Colitis, Crohn's ColitisArmsChromoendoscopy
3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 2 syntheses or guidelines pooled it, 60 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. New Technologies for IBD Endoscopy.Journal of clinical medicine · 2026
    Review
  4. Article
  5. Review
  6. Advances in endoscopic dysplasia detection in inflammatory bowel disease.World journal of gastrointestinal endoscopy · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. Review
  13. Article
  14. Review
  15. Present and future of endoscopy precision for inflammatory bowel disease.Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society · 2024
    Review
  16. Review
  17. Review
  18. Review
  19. Concordance of Dye-Spraying Chromoendoscopy and Virtual Chromoendoscopy for Colonic Dysplasia Detection in Longstanding Inflammatory Bowel Disease.The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology · 2023
    Article
  20. 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

10 authors at 6 institutions in 1 country.

Kesavan KandiahDepartment of Gastroenterology, Portsmouth Hospitals University NHS Trust, Portsmouth, UK.ORCID 0000-0001-9447-3172
Sharmila SubramaniamDepartment of Gastroenterology, Portsmouth Hospitals University NHS Trust, Portsmouth, UK.
Sreedhari ThayalasekaranDepartment of Gastroenterology, Portsmouth Hospitals University NHS Trust, Portsmouth, UK.
Fergus Jq ChedgyDepartment of Gastroenterology, Portsmouth Hospitals University NHS Trust, Portsmouth, UK.
Gaius Longcroft-WheatonDepartment of Gastroenterology, Portsmouth Hospitals University NHS Trust, Portsmouth, UK.ORCID 0000-0001-9899-9948
Carole FoggDepartment of Gastroenterology, Portsmouth Hospitals University NHS Trust, Portsmouth, UK.ORCID 0000-0002-3000-6185
James F BrownSchool of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, UK.
Samuel Cl SmithInstitute of Immunology and Immunotherapy, NIHR Wellcome Trust Clinical Research Facilities, University of Birmingham, Birmingham, UK.ORCID 0000-0001-8351-1081
Marietta IacucciInstitute of Immunology and Immunotherapy, NIHR Wellcome Trust Clinical Research Facilities, University of Birmingham, Birmingham, UK.
Pradeep BhandariDepartment of Gastroenterology, Portsmouth Hospitals University NHS Trust, Portsmouth, UK pradeep.bhandari@porthosp.nhs.uk.
Portsmouth Hospitals NHS Trust · GBNational Institute for Health Research · GBQueen Alexandra Hospital · GBSt George’s University Hospitals NHS Foundation Trust · GBUniversity of Birmingham · GBUniversity of Portsmouth · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLongstanding colonic IBD increases the risk of developing colorectal cancer. The utility of chromoendoscopy with standard-definition white light technology has been established. However, the use of high-definition virtual chromoendoscopy (HDV) in colitis surveillance remains undefined.

objectiveTo compare the performance of HDV (i-scan OE mode 2) with high-definition white light (HDWL) for detection of neoplasia in patients with IBD undergoing surveillance colonoscopy. Additionally, we assessed the utility of protocol-guided quadrantic non-targeted biopsies.

designA multioperator randomised controlled trial was carried out in two centres in the UK. Total of 188 patients (101 men, mean age 54) with longstanding ulcerative or Crohn's colitis were randomised, prior to starting the surveillance colonoscopy, to using either HDV (n=94) or HDWL (n=94) on withdrawal. Targeted and quadrantic non-targeted biopsies were taken in both arms per-randomisation protocol. The primary outcome was the difference in neoplasia detection rate (NDR) between HDV and HDWL.

resultsThere was no significant difference between HDWL and HDV for neoplasia detection. The NDR was not significantly different for HDWL (24.2%) and HDV (14.9%) (p=0.14). All intraepithelial neoplasia (IEN) detected contained low-grade dysplasia only. A total of 6751 non-targeted biopsies detected one IEN only. The withdrawal time was similar in both arms of the study; median of 24 min (HDWL) versus 25.5 min (HDV).

conclusionHDV and HDWL did not differ significantly in the detection of neoplasia. Almost all neoplasia were detected on targeted biopsy or resection. Quadrantic non-targeted biopsies have negligible additional gain. TRIAL REGISTRATION NUMBER: Clinical Trial.gov ID NCT02822352.

Indexed as

AdultAgedAged, 80 and overBiopsyColonColonic NeoplasmsColonography, Computed TomographicEarly Detection of CancerFemaleHumansInflammatory Bowel DiseasesMaleMiddle AgedYoung Adultchronic ulcerative colitiscolonoscopycolorectal neoplasiaCrohn's colitissurveillance

Identifiers

PMID33214162
PMCPMC8355878
OpenAlexW3104619754

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

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.