Evidence map›Paper›PMID 19547956›Full record

ArticleIntensive care medicine2009

Relationships among haemoglobin level, packed red cell transfusion and clinical outcomes in patients after cardiac surgery.

Eva Oliver, Maria L Carrio, David Rodríguez-Castro, Casimiro Javierre, Elisabet Farrero, Herminia Torrado, Eduard Castells, Josep L Ventura

Abstract read
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In one paragraph

Article in Intensive care medicine, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
–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. Trial
  2. Trial
  3. Article
  4. Article
  5. Postoperative anemia in cardiac surgery patients: a narrative review.Canadian journal of anaesthesia = Journal canadien d'anesthesie · 2024
    Review
  6. Review
  7. Article
  8. Observational
  9. Observational
  10. Blood transfusions increase the risk of venous thromboembolism following ventral hernia repair.Hernia : the journal of hernias and abdominal wall surgery · 2019
    Article
  11. Article
  12. Influence of cirrhosis in cardiac surgery outcomes.World journal of hepatology · 2015
    Review
  13. Article
  14. What's new in transfusion policies?Intensive care medicine · 2013
    Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Getting it right: optimizing transfusion management during the procedure.The journal of extra-corporeal technology · 2009
    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

8 authors.

Eva OliverDepartment of Intensive Care, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, 08907 Barcelona, Spain. 36685eoj@comb.cat
Maria L Carrio
David Rodríguez-Castro
Casimiro Javierre
Elisabet Farrero
Herminia Torrado
Eduard Castells
Josep L Ventura

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo identify associations among haemoglobin (Hb) concentrations, blood transfusions, and clinical outcomes in patients after cardiac surgery, especially in those who undergo valve replacement or bypass surgery.

designProspective observational trial.

settingSurgical intensive care unit in a tertiary-level university hospital. PATIENTS: 1216 Consecutive patients. MEASUREMENTS: Haemoglobin at admission and 6, 12, 24, and 48 h later, and then, every 24 h while patients remained in the intensive care unit (ICU); number of transfusions and clinical events.

resultsPatients were divided into quartiles according to minimal haemoglobin, the first and second of which (Hb <8.10 and <8.91 g/dL, respectively) differed significantly (P < 0.001) from the other two quartiles in terms of more organ failure, longer ICU stay, and higher mortality. We found associations between being transfused >or=4 packed red cells (PRCs) and a worse clinical outcome and higher mortality. The associated mortality rate was higher for patients who underwent bypass surgery when they had Hb <or=8.9 g/dL and for those who underwent valve replacement when they had Hb >8.9 g/dL and were transfused >or=4 PRCs.

conclusionsLow haemoglobin concentrations and transfusions in patients undergoing cardiac surgery are associated with increased morbidity and mortality. Also, anemia and transfusions are associated with poor outcome. Therefore, intra- and postoperative bleeding seem to be a risk factor in patients undergoing cardiac surgery.

Indexed as

Critical CareErythrocytesErythrocyte TransfusionAgedFemaleHemoglobinsHumansIntensive Care UnitsMaleMiddle AgedOutcome Assessment, Health CareProspective StudiesHemoglobins

Identifiers

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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.