Evidence map›Paper›PMID 37910221›Full record

ArticleLangenbeck's archives of surgery2023

The impact of anemia and blood transfusion on mortality after open abdominal surgery in the elderly.

Henrik Buhl, Astrid Nørgaard, Astrid Otkjaer, Lars Nannestad Jørgensen, Henrik Løvendahl Jørgensen

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In one paragraph

Article in Langenbeck's archives of surgery, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.1field-weighted citation impact, top 25% 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

4 citing papers in PubMed, 10 citations in OpenAlex.

  1. Observational
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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 2 institutions in 1 country.

Henrik BuhlDepartment of Clinical Biochemistry, Hvidovre Hospital, University of Copenhagen, Kettegård Alle 30, 2650, Hvidovre, Denmark. Henrik.buhl@regionh.dk.ORCID http://orcid.org/0000-0003-2663-1743
Astrid NørgaardPharmacosmos A/S, Rørvangsvej 30, 4300, Holbaek, Denmark.
Astrid OtkjaerDepartment of Clinical Biochemistry, Hvidovre Hospital, University of Copenhagen, Kettegård Alle 30, 2650, Hvidovre, Denmark.
Lars Nannestad JørgensenDigestive Disease Center, Bispebjerg Hospital, University of Copenhagen, 2400, Copenhagen, NV, Denmark.ORCID http://orcid.org/0000-0001-7465-5374
Henrik Løvendahl JørgensenDepartment of Clinical Biochemistry, Hvidovre Hospital, University of Copenhagen, Kettegård Alle 30, 2650, Hvidovre, Denmark.ORCID http://orcid.org/0000-0001-6374-761X
University of Copenhagen · DKPharmacosmos (Denmark) · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMajor abdominal surgery is associated with considerable mortality in the elderly. Anemia has been linked to increased mortality in other types of surgery, such as hip and cardiac surgery. This study aimed to assess the impact of preoperative anemia on mortality in the elderly undergoing major abdominal surgery, and how allogeneic red cell blood transfusion influences mortality in these patients. MATERIALS AND

methodsWe conducted a single-center, register-based retrospective study on patients, who were aged beyond 60 years and underwent one of 81 open abdominal surgical procedures. Patients operated on during the period from January 1, 2000, to May 31, 2013, were consecutively identified in the Danish National Patient Registry. Plasma hemoglobin was measured within 30 days prior to surgery and the primary endpoint was 30-day postoperative mortality. Information about patient transfusions from the hospital blood bank was available from 1998 to 2010.

resultsA total of 3199 patients were included of whom 85% underwent emergency surgery. The total mortality after 30 days was 20%. The median preoperative hemoglobin value of survivors was 7.7 mmol/L vs 6.9 mmol/L in those who died. The difference in hemoglobin values, between those who survived or died, decreased from the pre- to the post-operative phase. The 30-day postoperative mortality was 28%, 20%, and 12% in patients with a preoperative hemoglobin level in the lower, median, and upper quartile respectively. Transfusion therapy was associated with higher postoperative mortality, except in patients with very low hemoglobin values.

conclusionPreoperative anemia has a clear association with surgically related mortality. The distribution of hemoglobin values in patients with a fatal outcome differs significantly from that of survivors. Red cell transfusion is associated with increased mortality, except in patients with very low hemoglobin values which supports recent guidelines suggesting a restrictive transfusion strategy.

Indexed as

AnemiaAgedBlood TransfusionErythrocyte TransfusionHemoglobinsHumansRetrospective StudiesHemoglobinsAnemiaBlood transfusionOpen abdominal surgery

Identifiers

PMID37910221
PMCPMC10620292
OpenAlexW4388133742

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.