Evidence map›Paper›PMID 41536866›Full record

ArticleBJA open2026

Association of postoperative haemoglobin with adverse outcomes in patients undergoing cardiac surgery: a retrospective single centre cohort study.

Jamal Alkadri, Maggie Chen, Keyvan Karkouti, Samantha Morais, Refik Saskin, Alexa Grudzinski, Maral Ouzounian, Jeannie Callum, Yulia Lin, Stuart A McCluskey and 2 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in BJA open, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

12 authors.

Jamal AlkadriDepartment of Anesthesiology & Pain Medicine, University of Ottawa, Ottawa, ON, Canada.
Maggie ChenDepartment of Anesthesia and Pain Management, Sinai Health System, Women's College Hospital, University Health Network, Toronto, ON, Canada.
Keyvan KarkoutiDepartment of Anesthesia and Pain Management, Sinai Health System, Women's College Hospital, University Health Network, Toronto, ON, Canada.
Samantha MoraisICES Data & Analytic Services (DAS), Toronto, ON, Canada.
Refik SaskinICES Data & Analytic Services (DAS), Toronto, ON, Canada.
Alexa GrudzinskiDepartment of Anesthesiology & Pain Medicine, University of Ottawa, Ottawa, ON, Canada.
Maral OuzounianDivision of Cardiovascular Surgery Peter Munk Cardiac Centre, Toronto General Hospital and the University of Toronto, Toronto, ON, Canada.
Jeannie CallumDepartment of Pathology and Molecular Medicine, Kingston Health Sciences Centre and Queen's University, Kingston, ON, Canada.
Yulia LinPrecision Diagnostics and Therapeutics Program, Sunnybrook Health Sciences Centre and Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada.
Stuart A McCluskeyDepartment of Anesthesia and Pain Management, Sinai Health System, Women's College Hospital, University Health Network, Toronto, ON, Canada.
Daniel I McIsaacDepartment of Anesthesiology & Pain Medicine, University of Ottawa, Ottawa, ON, Canada.
Justyna BartoszkoDepartment of Anesthesia and Pain Management, Sinai Health System, Women's College Hospital, University Health Network, Toronto, ON, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Preoperative anaemia is an important risk factor for adverse outcomes in cardiac surgery, however data on postoperative anaemia is sparse. The aim of this study is to characterise the association of postoperative haemoglobin with 30-day mortality and morbidity after cardiac surgery. Methods: We performed a retrospective cohort study of adults (age ≥18 yr) undergoing coronary revascularisation, valve surgery, or a combination at Toronto General Hospital from 2016 to 2020. We analysed the association between nadir postoperative day 1 (POD1) haemoglobin as a continuous and binary variable (haemoglobin ≤80 g L Results: We included 5960 patients. On POD1, mean haemoglobin was 90.1g L Conclusions: In postoperative cardiac surgical patients, progressive decreases in postoperative haemoglobin are associated with increased risk of mortality and major morbidity at 30 days.

Indexed as

anaemiacardiac surgical procedureshumansmortalityorgans at riskrisk factors

Identifiers

PMID41536866
PMCPMC12795686

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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 Socratic graph.