Evidence map›Paper›PMID 22336857›Full record

SynthesisThe Cochrane database of systematic reviews2012

Blood transfusions for anaemia in patients with advanced cancer.

Nancy J Preston, Adam Hurlow, Jennifer Brine, Michael I Bennett

Open access · greenAbstract readSystematic Review
In one paragraph

Synthesis in The Cochrane database of systematic reviews, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 pooled it
2.3field-weighted citation impact, top 12% 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

20 citing papers in PubMed, 2 syntheses or guidelines pooled it, 76 citations in OpenAlex.

  1. Guideline
  2. Interventions for fatigue in inflammatory bowel disease.The Cochrane database of systematic reviews · 2020
    Pooled it
  3. Trial
  4. Review
  5. Review
  6. Transfusion in Hospice-Palliative Care.Journal of hospice and palliative care · 2026
    Article
  7. Challenges in hospice and end-of-life care in the transfusion-dependent patient.Hematology. American Society of Hematology. Education Program · 2024
    Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Transfusion as a Palliative Strategy.Current oncology reports · 2019
    Review
  14. Article
  15. Observational
  16. Article
  17. Review
  18. Article
  19. 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

4 authors at 3 institutions in 1 country.

Nancy J PrestonInternational Observatory on End of Life Care, Lancaster University, Lancaster, UK. n.j.preston@lancaster.ac.uk
Adam Hurlow
Jennifer Brine
Michael I Bennett
Lancaster University · GBLeeds Teaching Hospitals NHS Trust · GBUniversity of Leeds · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAnaemia occurs in 68% to 77% of patients with advanced cancer, however, only a minority of patients who are admitted to a hospice receive a blood transfusion. It is unclear what the benefit of blood transfusion is in advanced cancer, who is most likely to respond and also for how long. Hence we conducted a systematic review to assess the use of blood transfusion in advanced cancer.

objectivesTo synthesise the existing clinical evidence and summarise knowledge gaps regarding blood transfusions for treating anaemia in patients with advanced cancer. SEARCH

methodsWe searched MEDLINE, EMBASE, CINAHL, Web of Science, ZETOC and CENTRAL in November 2011. In addition, we checked and citation-tracked the reference lists of all relevant studies and reports. We contacted investigators who were known to be researching this area for unpublished data or knowledge of the grey literature. SELECTION CRITERIA: Randomised controlled trials (RCTs), before and after studies and interrupted time series (ITS) studies in adults and children, reporting the outcome of blood transfusions in advanced cancer. DATA COLLECTION AND ANALYSIS: Two independent (NP and AH) review authors extracted data and quality scored studies. There were insufficient data to carry out an analysis. MAIN

resultsNo RCTs were found. We identified 12 before and after studies which included 653 participants and showed a subjective response rate of 31% to 70%. Five studies specifically assessed response using a range of fatigue scales which indicated an early response post transfusion, which was beginning to wane by day 14. Similar results were found for breathlessness. Overall survival ranged from two to 293 days but there was a significant proportion of participants (23% to 35%) who died within two weeks of their transfusion. AUTHORS'

conclusionsHigher-quality studies are required to determine the effectiveness of blood transfusion at the end of life and, in particular, to determine which patients are most likely to respond and which are not, and the duration of any response. Potential harms of blood transfusion at the end of life (indicated by high 14-day mortality) need to be distinguished from inappropriate transfusion in patients who are dying from advanced cancer.

Indexed as

Blood TransfusionAnemiaDyspneaErythrocyte TransfusionFatigueHumansNeoplasmsRecurrenceTime Factors

Identifiers

PMID22336857
PMCPMC7388847
OpenAlexW1512557419

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.