Evidence map›Paper›PMID 18755886›Full record

ArticleGut2008

Miniprobe confocal laser microscopy for the detection of invisible neoplasia in patients with Barrett's oesophagus.

H Pohl, T Rösch, M Vieth, M Koch, V Becker, M Anders, A C Khalifa, A Meining

3 registry-linked trialsAbstract readEvaluation StudyMulticenter Study
PubMed Publisher
In one paragraph

Article in Gut, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 3 registered trials, which are not on this map. Cited by 71 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed, 1 pooled it
22.1field-weighted citation impact, top 1% 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.

NCT01398579 phase1unknown statusnot on this mapstarted 2011, after this paper: background citation

Prospective Comparison Between Probe-based Confocal Laser Endomicroscopy, White-light Endoscopy and Virtual Chromoendoscopy for the Diagnosis of Gastric Pre-neoplastic and Neoplastic Lesions (pCLE-GCEP)

TypeinterventionalSponsorNational University Hospital, SingaporeRan2011 to 2012Enrolled20ConditionsIntestinal Metaplasia, Intestinal DysplasiaArmsGastroscopy
NCT01563133 naunknown statusnot on this mapstarted 2012, after this paper: background citation

Clinical Evaluation Of NCLE in The Lymph Nodes Along With Masses and Cystic Tumors of the Pancreas

TypeinterventionalSponsorMauna Kea TechnologiesRan2012 to 2019Enrolled330ConditionsPancreatic Cyst, Pancreatic Neoplasms, Pancreatic Adenoma, Pancreatic CancerArmsEUS-FNA, nCLE
NCT01793246 completednot on this mapstarted 2013, after this paper: background citation

Registry Trial to Determine pCLE Image Interpretation Criteria and Preliminary Accuracy: Discrete Pulmonary Lesions and Acute Rejection in Transplanted Lungs

TypeobservationalSponsorMauna Kea TechnologiesRan2013 to 2016Enrolled99ConditionsLung Neoplasms, Disorder Related to Lung TransplantationArmsprobe based laser endomicroscopy (pCLE)
3 · Its place in the literature

Who cites it

71 citing papers in PubMed, 1 synthesis or guideline pooled it, 209 citations in OpenAlex.

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  18. Advanced endoscopic methods in gastrointestinal diseases: a systematic review.Quantitative imaging in medicine and surgery · 2019
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11 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

H PohlCentral Interdisciplinary Endoscopy Unit, Department of Gastroenterology, Hepatology and Metabolic Diseases, Virchow Clinic Campus, Charité Medical University of Berlin, Augustenburger Platz 1, 13353 Berlin, Germany.
T Rösch
M Vieth
M Koch
V Becker
M Anders
A C Khalifa
A Meining
Charité - Universitätsmedizin Berlin · DEKlinikum rechts der Isar · DEBayreuth Medical Center · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe biggest challenge in endoscopic surveillance of Barrett's oesophagus is better detection of neoplasia in mucosa of normal macroscopic appearance. We evaluated in vivo miniprobe confocal laser microscopy (CLM) for the detection of invisible Barrett's neoplasia.

designProspective two-centre trial in two phases: phase I to establish criteria of Barrett's neoplasia and phase II to test these criteria. PATIENTS AND

intervention296 biopsy sites in 38 consecutive patients with Barrett's oesophagus (mean age 62.1 years, 89.5% men, median length of the Barrett's oesophagus, 3 cm) were examined with standard high-resolution endoscopy and by miniprobe CLM, with precise matching of CLM recordings to biopsy sites. CLM image criteria for normal versus neoplastic Barrett's oesophagus were established from 95 biopsies of 15 patients (phase I); these criteria were then prospectively tested on 201 biopsies from the remaining patients without visible focal changes (phase II). All 201 CLM video recordings from phase II cases were randomised and blindly evaluated by two gastroenterologists.

main outcome measureThe primary endpoints were accuracy values in diagnosing HGIN or early carcinoma (EC) on a per-biopsy basis. Secondary endpoints included inter-observer agreement.

resultsAll initially defined miniprobe CLM criteria (phase I) were significantly more frequently detected in HGIN/EC sites compared with sites with no or low grade neoplasia (phase II). In a per-biopsy analysis, sensitivity and specificity for two independent investigators were 75.0% and 88.8%, and 75.0% and 91.0%, respectively, translating at best into a positive predictive value of 44.4% and a negative predictive value of 98.8%. Inter-observer agreement was good (kappa 0.6).

conclusionMiniprobe CLM showed a high negative predictive value for the diagnosis of endoscopically invisible neoplasia in Barrett's oesophagus; sensitivity, however, has still to be improved.

Indexed as

AdenocarcinomaAdultAgedAged, 80 and overBarrett EsophagusEsophageal NeoplasmsEsophagoscopyEsophagusFemaleHumansIntestinal MucosaMaleMicroscopy, ConfocalMiddle AgedObserver VariationPrecancerous Conditions

Identifiers

PMID18755886
OpenAlexW2114076424

What OpenQuestion holds

Textmetadata
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.