Evidence map›Paper›PMID 40892141›Full record

Observational studyTechniques in coloproctology2025

Proposal of a new visual analogue scale to describe the extent of lymphadenectomy in right-sided colectomy for cancer-a prospective observational study.

F Pfeffer, P Kalgraff, K B Lygre, B S Nedrebø, H M Forsmo

Erratum issued Registry-linked trialAbstract readObservational Study
PubMed Full text at PMC Publisher
In one paragraph

Observational study in Techniques in coloproctology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. It is linked to trial NCT06329102 (Right Colectomy for Colon Cancer Database), which is not on this map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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.

NCT06329102 recruitingnot on this map

Right Colectomy for Colon Cancer Database

Typeobservational_patient_registrySponsorHaukeland University HospitalRan2021 to 2030Enrolled1,000ConditionsRight Sided Colon Cancer, Right Colectomy, LymphadenectomyArmsSurgical access
3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

F PfefferDepartment of Gastrointestinal Surgery, Haukeland University Hospital, 5021, Bergen, Norway. frank.pfeffer@uib.no.ORCID http://orcid.org/0000-0001-8060-7459
P KalgraffDepartment of Gastrointestinal Surgery, Haukeland University Hospital, 5021, Bergen, Norway.
K B LygreDepartment of Gastrointestinal Surgery, Haukeland University Hospital, 5021, Bergen, Norway.
B S NedrebøDepartment of Gastrointestinal Surgery, Haukeland University Hospital, 5021, Bergen, Norway.
H M ForsmoDepartment of Gastrointestinal Surgery, Haukeland University Hospital, 5021, Bergen, Norway.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLymphadenectomy in right-sided colon cancer lacks standardized reporting. The aim was to develop a visual analogue scale (VAS) based on mesenteric vessels to describe the extent of lymphadenectomy.

methodsWe included patients undergoing surgery for right-sided colon cancer from January 2021 to September 2024. Data were collected via a web-based database. Immediately after surgery, surgeons recorded the VAS score, vascular visualization, and specimen quality.

resultsData from 155 patients were analyzed. Median age was 74 (IQR: 68-80), with 53% female. The median VAS score was 8.2 (IQR: 7.8-8.9). The superior mesenteric vein (SMV) was visualized in 84% of cases, with a median VAS score of 8.4 (IQR: 8.0-9.2) for visualized and 7.0 (IQR: 6.8-7.5) for non-visualized (p < 0.001). The gastrocolic trunk of Henle (GTH) was visualized in 51%, with a median VAS score of 8.7 (IQR: 8.3-9.7) for visualized and 7.9 (IQR: 7.3-8.0) for non-visualized (p < 0.001). Specimen quality was Type 0 (best) in 54% (VAS score 8.6, IQR: 8.2-9.5), Type I in 37% (VAS score 7.9, IQR: 7.3-8.0), and Type II in 6% (VAS score 6.9, IQR: 6.5-7.9; p < 0.001). A positive correlation between VAS score and lymph node count was found (r = 0.43, p < 0.001).

conclusionsThe VAS score is a reliable and feasible method to describe lymphadenectomy in right-sided colon cancer. Unlike categorical classifications, the VAS score is based on anatomical landmarks and does not depend on consensus definitions. It reflects the visualization of vascular structures and correlates with specimen quality and lymph node yield. CLINICAL TRIAL: ClinicalTrials.gov Identifier NCT06329102 (registered on March 24, 2024). ARTICLE TYPE: Prospective observational study.

Indexed as

ColectomyColonic NeoplasmsLymph Node ExcisionVisual Analog ScaleAgedAged, 80 and overFemaleHumansLymph NodesMaleMesenteric VeinsProspective StudiesLymphadenectomyMesenteric lymph node dissectionRight-sided colon cancerSpecimen evaluationSurgical quality assessmentVisual analogue scale

Identifiers

PMID40892141
PMCPMC12405331

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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.