Evidence map›Paper›PMID 31728609›Full record

Trial reportInternational journal of colorectal disease2019

Carnoy solution versus GEWF solution for lymph node revealing in colorectal cancer: a randomized controlled trial.

Tiago L Ghezzi, Márcia P Pereira, Oly C Corleta, Antonio N Kalil

Abstract readComparative StudyRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in International journal of colorectal disease, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.2field-weighted citation impact, top 40% 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

2 citing papers in PubMed, 5 citations in OpenAlex.

  1. Trial
  2. CARNOY'S SOLUTION INCREASES LYMPH NODES COUNT IN COLON CANCER SPECIMENS WHEN COMPARED TO FORMALIN FIXATION: A RANDOMIZED TRIAL.Arquivos brasileiros de cirurgia digestiva : ABCD = Brazilian archives of digestive surgery · 2022
    Trial
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

4 authors at 3 institutions in 1 country.

Tiago L GhezziDivision of Coloproctology, Hospital Moinhos de Vento, 2350 Ramiro Barcelos St, 600, Porto Alegre, RS, 90035-903, Brazil. tghezzi@hcpa.edu.br.ORCID http://orcid.org/0000-0001-6738-3454
Márcia P PereiraAnatpat Surgical Pathology Lab, Porto Alegre, Brazil.
Oly C CorletaDivision of General Surgery, Department of Surgery, Hospital de Clinicas de Porto Alegre, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
Antonio N KalilPost-graduate Program in Health Sciences, Federal University of Health Sciences of Porto Alegre, Porto Alegre, Brazil.
Hospital de Clínicas de Porto Alegre · BRUniversidade Federal de Ciências da Saúde de Porto Alegre · BRUniversidade Federal do Rio Grande do Sul · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study aimed to compare the performance of two lymph node revealing solutions.

methodsThis randomized clinical trial (NTC02704988) investigated patients with colon or rectal cancer who underwent surgical resection with D2 lymphadenectomy. Specimens submitted for conventional pathological examination were randomly assigned for additional fixation with Carnoy or GEWF solution, and dissection was performed to examine the missed lymph nodes. The number of lymph nodes retrieved, additional identified metastatic lymph nodes, lymph node upstaging, and complementary indication of adjuvant therapy were investigated.

resultsThe number of lymph nodes retrieved was significantly higher with the use of lymph node revealing solutions than with the conventional method in colon cancer (GEWF: 29.5 vs 27; p < 0.001; Carnoy: 27.7 vs 25.2; p < 0.001) and rectal cancer (GEWF: 25.8 vs 23.6; p < 0.001; Carnoy: 23.1 vs 20.8; p < 0.001). There were no differences between the solutions and conventional examination with respect to the median number of additional metastatic lymph nodes identified (0 in all arms), the number of patients with lymph node upstaging (colon cancer: 1 in the Carnoy arm, 0 in the GEWF arm; rectal cancer: 1 in the GEWF arm, 0 in the Carnoy arm), or the number of patients with complementary indication of adjuvant therapy (colon cancer: 1 in the Carnoy arm, 0 in the GEWF arm; rectal cancer: 0 in both arms).

conclusionDespite the higher number of lymph nodes retrieved, neither solution resulted in significant changes in patient staging or treatment. Both solutions exhibited equal performance with respect to all outcomes.

trial registrationNTC02704988.

Indexed as

Digestive System Surgical ProceduresLymph Node ExcisionAcetic AcidChemotherapy, AdjuvantChloroformColorectal NeoplasmsEthanolFemaleFixativesFormaldehydeHumansLymphatic MetastasisLymph NodesMaleMiddle AgedNeoplasm StagingAcetic AcidCarnoy's solutionChloroformEthanolFixativesFormaldehydegewf solutionSolutionsColorectal cancerLymphadenectomyLymph nodeLymph node revealing solutionRandomized controlled trial

Identifiers

PMID31728609
OpenAlexW2989385746

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.