Evidence map›Paper›PMID 27770250›Full record

ArticleInternational journal of colorectal disease2017

Preoperative anaemia and perioperative red blood cell transfusion as prognostic factors for recurrence and mortality in colorectal cancer-a Swedish cohort study.

Malin E M Mörner, Gustaf Edgren, Anna Martling, Ulf Gunnarsson, Monika Egenvall

Open access · hybridAbstract read
In one paragraph

Article in International journal of colorectal disease, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 2 pooled it
2.9field-weighted citation impact, top 9% 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

26 citing papers in PubMed, 2 syntheses or guidelines pooled it, 57 citations in OpenAlex.

  1. Pooled it
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  16. Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz · 2020
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  17. Observational
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  19. Patient Blood Management improves outcome in oncologic surgery.World journal of surgical oncology · 2018
    Article
  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

5 authors at 3 institutions in 1 country.

Malin E M MörnerDepartment of Clinical Science Intervention and Technology, Karolinska Institutet, Stockholm, Sweden. malin.morner@ki.se.
Gustaf EdgrenDepartment of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
Anna MartlingDepartment of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.
Ulf GunnarssonDepartment of Surgical and Perioperative Sciences, Umeå university, Umeå, Sweden.
Monika EgenvallDepartment of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.
Karolinska Institutet · SEKarolinska University Hospital · SEUmeå University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe hypothesis in this study was that anaemia prior to surgery and perioperative red blood cell transfusion increases the risk for recurrence and overall mortality in patients with stages I-III colorectal cancer after abdominal resection with curative intent.

methodsThis is a Swedish single centre retrospective cohort study. Data on 496 consecutive radical abdominal resections stages I-III colorectal cancer performed at the Karolinska University Hospital 2007-2010 were extracted from the Swedish Colorectal Cancer Registry. Data were linked to local laboratory and transfusion databases to identify preoperative anaemia and perioperative transfusion. Disease recurrence was validated by scrutiny of patient records. A total of 496 stages I-III colorectal cancer patients were included in the analysis. Multivariate Cox regression analysis adjusted for tumour and patient characteristics were performed to assess risk for recurrence and overall mortality.

resultsAnaemia prior to surgery was associated with increased risk for overall mortality (HR 2.1, 95% CI 1.4-3.2). There was no association between anaemia and risk for recurrence (HR 1.6, 95% CI 0.97-2.6). Transfusion was not associated with increased risk of recurrence (HR 0.7, 95% CI 0.4-1.3) or overall mortality (HR 1.04, 95% CI 0.7-1.6).

conclusionsAnaemia prior to colorectal cancer surgery was associated with increased risk for overall mortality while a no increased risk was seen for recurrence. Previous findings indicating an association between blood transfusion and increased risk for recurrence could not be confirmed.

Indexed as

Erythrocyte TransfusionPerioperative CarePreoperative CareAgedAnemiaCohort StudiesColorectal NeoplasmsFemaleHumansMaleMiddle AgedMultivariate AnalysisNeoplasm Recurrence, LocalNeoplasm StagingPrognosisProportional Hazards ModelsAnaemiaColorectal cancerMortalityRecurrenceSurvivalTransfusion

Identifiers

PMID27770250
PMCPMC5285411
OpenAlexW2535115173

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.