Evidence map›Paper›PMID 36036797›Full record

ArticleEuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology2022

Pretreatment with heparin in patients with ST-segment elevation myocardial infarction: a report from the Swedish Coronary Angiography and Angioplasty Registry (SCAAR).

Oskar Love Emilsson, Sofia Bergman, Moman A Mohammad, Göran K Olivecrona, Matthias Götberg, David Erlinge, Sasha Koul

Open access · greenAbstract read
In one paragraph

Article in EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
4.1field-weighted citation impact, top 5% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Upstream anticoagulation in patients with ST-segment elevation myocardial infarction: a systematic review and meta-analysis.Clinical research in cardiology : official journal of the German Cardiac Society · 2023
    Pooled it
  2. Trial
  3. Article
  4. Antithrombotic therapy in complex percutaneous coronary intervention.EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology · 2025
    Review
  5. Observational
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Reply: Pretreatment with unfractionated heparin in patients undergoing primary PCI: a standard of treatment together with DAPT?EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology · 2023
    Article
  13. Heparin pretreatment in STEMI: is earlier always better?EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology · 2022
    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

7 authors at 2 institutions in 1 country.

Oskar Love EmilssonDepartment of Cardiology, Clinical Sciences, Lund University, Lund, Sweden.
Sofia BergmanDepartment of Cardiology, Clinical Sciences, Lund University, Lund, Sweden.
Moman A MohammadDepartment of Cardiology, Clinical Sciences, Lund University, Lund, Sweden.
Göran K OlivecronaDepartment of Cardiology, Clinical Sciences, Lund University, Lund, Sweden.
Matthias GötbergDepartment of Cardiology, Clinical Sciences, Lund University, Lund, Sweden.
David ErlingeDepartment of Cardiology, Clinical Sciences, Lund University, Lund, Sweden.
Sasha KoulDepartment of Cardiology, Clinical Sciences, Lund University, Lund, Sweden.
Lund University · SESkåne University Hospital · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundUnfractionated heparin (UFH) is frequently administered before percutaneous coronary intervention (PCI) in patients with ST-segment elevation myocardial infarction (STEMI).

aimsThe aim of the study was to investigate if pretreatment with UFH prior to arrival at the catheterisation laboratory affects coronary artery occlusion, mortality, and in-hospital major bleeding in patients with STEMI undergoing PCI.

methodsPatients with a first STEMI event undergoing PCI between 2008 and 2016 were extracted from the Swedish Coronary Angiography and Angioplasty Registry. Risk ratios for UFH pretreatment versus no pretreatment regarding coronary artery occlusion at presentation in the catheterisation laboratory, 30-day mortality, and bleeding were obtained using adjusted Poisson regression models with robust standard errors. Analyses of propensity score (PS)-matched groups were performed to obtain absolute risk differences.

resultsIn all, 41,631 patients were included, 16,026 (38%) with and 25,605 (62%) without UFH pretreatment. Adjusted risk ratios were 0.89 (95% confidence interval [CI]: 0.87 to 0.90) for coronary artery occlusion, 0.87 (0.77 to 0.99) for mortality, and 1.01 (0.86 to 1.18) for bleeding. In the PS-matched analyses, the absolute risk differences were -0.087 (-0.074 to -0.099) for coronary artery occlusion, -0.011 (-0.017 to -0.0041) for mortality, and 0 (-0.0052 to 0.0052) for bleeding.

conclusionsPretreatment with UFH was associated with a reduction in coronary artery occlusion among patients with STEMI, with a number needed to treat (NNT) of 12, without increasing the risk of major in-hospital bleeding. Regarding mortality, a reduction was found with UFH pretreatment, with an NNT of 94, but this effect was not robust over all sensitivity analyses and residual confounding cannot be excluded.

Indexed as

Angioplasty, Balloon, CoronaryCoronary OcclusionPercutaneous Coronary InterventionST Elevation Myocardial InfarctionCoronary AngiographyHemorrhageHeparinHumansRegistriesSwedenTreatment OutcomeHeparin

Identifiers

PMID36036797
PMCPMC10241276
OpenAlexW4293866317

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.