Evidence map›Paper›PMID 19865821›Full record

ArticleInternational journal of colorectal disease2010

Extended lymph node dissection in colorectal cancer surgery. Reliability and reproducibility in assessments of operative reports.

Kjell Ovrebo, Ola Rokke

Abstract readEvaluation Study
PubMed Publisher
In one paragraph

Article in International journal of colorectal disease, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
–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.

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

20 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Complete mesocolic excision for colon cancer: is it worth it?Journal of gastrointestinal oncology · 2019
    Review
  10. Review
  11. Article
  12. Review
  13. Laparoscopic complete mesocolic excision: West meets East.World journal of gastroenterology · 2014
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Is there a disadvantage to radical lymph node dissection in colon cancer?International journal of colorectal disease · 2013
    Article
  19. [Lymph node dissection for carcinomas of the lower gastrointestinal tract. What is evidence-based?].Der Chirurg; Zeitschrift fur alle Gebiete der operativen Medizen · 2011
    Review
  20. 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

2 authors.

Kjell OvreboDepartment of surgery, Haukeland University Hospital, 5021 Bergen, Norway. kjell.ovrebo@haukeland.no
Ola Rokke

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundStratification of surgical strategies or techniques by operative reports is rarely validated. This study evaluates the assessment of lymph node dissection from operative reports and the possible survival benefit of extended lymph node dissection.

methodsThe operative reports of 342 colorectal resections (R0) were assessed twice by two surgeons. The lymph node dissection was classified as limited or extended according to a novel scheme. Intraobserver reproducibility and interobserver reliability were evaluated by kappa (kappa) statistics and a Cox model.

resultsFor colonic resections, the reproducibility of assessments was moderate or substantial (kappa: 0.42-0.75), and the reliability was moderate (kappa: 0.54-0.58). For rectal resections, reproducibility was moderate (kappa: 0.45-0.58), and reliability was fair (kappa: 0.29-0.36; all kappa values: p < 0.001). The 5-year survival rates of colonic cancer patients subject to a limited or extended procedure were 52% (45-60%, 95% confidence interval) and 69% (53-84%; p = 0.034), respectively. The hazard ratios of extended lymph node dissection (limited as reference) were 0.34 (0.14-0.86; p = 0.023) for stage I and II and 1.11 (0.50-2.44) for stage III. In rectal cancer patients, the 5-year survival rates of a limited or extended procedure were 63% (54-72%) and 55% (37-73), respectively.

conclusionsValid assessment of lymph node dissection can be obtained from operative reports. Extended lymph node dissection improves long-term survival rates of colonic cancer patients.

Indexed as

Digestive System Surgical ProceduresLymph Node ExcisionAdenocarcinomaColorectal NeoplasmsFemaleHumansKaplan-Meier EstimateLymphatic MetastasisMaleNeoplasm StagingObserver VariationProportional Hazards ModelsReproducibility of ResultsRetrospective StudiesTime FactorsTreatment Outcome

Identifiers

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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.