Evidence map›Paper›PMID 40342977›Full record

SynthesisFrontiers in cardiovascular medicine2025

Liberal versus restrictive red blood cell transfusion strategy in acute coronary syndrome and anemia: an updated systematic review and meta-analysis.

Sinda Hidri, Wajeeh Ur Rehman, Karam Gardezi, Jassim Zaheen Shah, Sai Venkata Siddhartha Masetti, Naiela E Almansouri, Arslan Maan, Tirth Dave, Sumeja Catic, Simranjeet Singh Nagoke and 10 more

Abstract readSystematic Review
In one paragraph

Synthesis in Frontiers in cardiovascular medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Review
  3. 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

20 authors.

Sinda HidriDepartment of Internal Medicine, East Carolina University, Greenville, NC, United States.
Wajeeh Ur RehmanDepartment of Internal Medicine, United Health Services Hospital, Johnson City, NY, United States.
Karam GardeziDepartment of Internal Medicine, T.J. Samson Community Hospital, Glasgow, KY, United States.
Jassim Zaheen ShahDepartment of Cardiology, Hamad Medical Corporation, Doha, Qatar.
Sai Venkata Siddhartha MasettiDepartment of Medicine, Kingston Public Hospital, Kingston, Jamaica.
Naiela E AlmansouriLibyan Biotechnology Research Center, Tripoli, Libya.
Arslan MaanDepartment of Internal Medicine, St Luke's Hospital, Cedar Rapids, IA, United States.
Tirth DaveDepartment of Medicine, Bukovinian State Medical University, Chernivtsi, Ukraine.
Sumeja CaticDepartment of Medicine, University of Zenica Faculty of Medicine, Zenica, Bosnia and Herzegovina.
Simranjeet Singh NagokeDepartment of Medicine, Government Medical College and Hospital, Jammu, India.
Mohammad Ebad Ur RehmanDepartment of Medicine, Rawalpindi Medical University, Rawalpindi, Pakistan.
Huzaifa Ahmad CheemaDepartment of Cardiology, King Edward Medical University, Lahore, Pakistan.
Adeel AhmadDepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, United States.
Raheel AhmedNational Heart & Lung Institute, Imperial College London, London, United Kingdom.
Abdelhamid Ben SelmaDepartment of Internal Medicine, United Health Services Hospital, Johnson City, NY, United States.
Mouhamed Amr SabouniDepartment of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, AL, United States.
Nabil BraitehDepartment of Cardiology, Mercy One Siouxland Heart and Vascular Center, Sioux City, IA, United States.
Alon YarkoniUHS Heart & Vascular Institute, United Health Services Hospital, Johnson City, NY, United States.
Keyoor PatelUHS Heart & Vascular Institute, United Health Services Hospital, Johnson City, NY, United States.
Afzal Ur RehmanUHS Heart & Vascular Institute, United Health Services Hospital, Johnson City, NY, United States.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: It is uncertain whether a liberal red blood cell (RBC) transfusion strategy is superior to a restrictive approach in patients with acute coronary syndrome (ACS) and anemia. Methods: We searched MEDLINE, Embase, the Cochrane Library, and ClinicalTrials.gov from inception to April 2024 for randomized controlled trials (RCTs) comparing liberal and restrictive transfusion strategies in ACS patients with concurrent anemia. Results: Five RCTs (4,510 patients) were included in this meta-analysis. There was no significant difference between the liberal and restrictive RBC transfusion strategy groups in the risk of major adverse cardiovascular events (MACE) (RR 0.91, 95% CI: 0.68-1.21; Conclusions: Our meta-analysis demonstrated that a liberal RBC transfusion strategy reduced the risk of MI and increased the risk of acute lung injury but did not affect other clinical outcomes compared to a restrictive approach in patients with mainly acute MI and anemia. New large-scale multicenter RCTs are required to confirm or refute our findings and provide more reliable results. Systematic Review Registration: PROSPERO (CRD42024506844).

Indexed as

ACSacute coronary syndromeliberal transfusionrestrictive transfusiontransfusion

Identifiers

PMID40342977
PMCPMC12060722

What OpenQuestion holds

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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.