Evidence map›Paper›PMID 39344920›Full record

ArticleEuropean heart journal2025

Cardiovascular events following coronavirus disease 2019 vaccination in adults: a nationwide Swedish study.

Yiyi Xu, Huiqi Li, Ailiana Santosa, Björn Wettermark, Tove Fall, Jonas Björk, Mats Börjesson, Magnus Gisslén, Fredrik Nyberg

Abstract read
In one paragraph

Article in European heart journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

22 citing papers in PubMed.

  1. Review
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  10. Review
  11. Review
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  13. Long COVID and the kidney.Nature reviews. Nephrology · 2025
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Observational
  20. Review
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

9 authors.

Yiyi XuSchool of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, BOX 414, 40 530 Gothenburg, Sweden.ORCID 0000-0001-9106-0049
Huiqi LiSchool of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, BOX 414, 40 530 Gothenburg, Sweden.ORCID 0000-0002-1127-0829
Ailiana SantosaSchool of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, BOX 414, 40 530 Gothenburg, Sweden.ORCID 0000-0002-1848-2867
Björn WettermarkPharmacoepidemiology and Social Pharmacy, Department of Pharmacy, Uppsala University, Uppsala, Sweden.ORCID 0000-0003-0531-2516
Tove FallDepartment of Medical Sciences, Molecular Epidemiology and Science for Life Laboratory, Uppsala University, Uppsala, Sweden.ORCID 0000-0003-2071-5866
Jonas BjörkDepartment of Laboratory Medicine, Division of Occupational and Environmental Medicine, Lund University, Lund, Sweden.ORCID 0000-0003-1883-2000
Mats BörjessonDepartment of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.ORCID 0000-0002-8786-0438
Magnus GisslénDepartment of Infectious Diseases, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.ORCID 0000-0002-2357-1020
Fredrik NybergSchool of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, BOX 414, 40 530 Gothenburg, Sweden.ORCID 0000-0003-0892-5668

Funding

ALF agreement ALFGBG-938453FORMAS 2020-02828ForteKnut and Alice Wallenberg Foundation KAW 2021-0010/VC2021.0018SciLifeLab National COVID-19 Research ProgramSwedish Heart-Lung Foundation 20210030Swedish Research Council 2021-05045
6 · The paper itself

Abstract

BACKGROUND AND

aimsWhile the rationale for coronavirus disease 2019 (COVID-19) vaccination is to reduce complications and overall mortality, some cardiovascular complications from the vaccine itself have been demonstrated. Myocarditis and pericarditis are recognized as rare acute adverse events after mRNA vaccines in young males, while evidence regarding other cardiovascular events remains limited and inconsistent. This study assessed the risks of several cardiovascular and cerebrovascular events in a Swedish nationwide register-based cohort.

methodsPost-vaccination risk of myocarditis/pericarditis, dysrhythmias, heart failure, myocardial infarction, and cerebrovascular events (transient ischaemic attack and stroke) in several risk windows after each vaccine dose were assessed among all Swedish adults (n = 8 070 674). Hazard ratios (HRs) with 95% confidence intervals (95% CIs) compared with unvaccinated were estimated from Cox regression models adjusted for potential confounders.

resultsFor most studied outcomes, decreased risks of cardiovascular events post-vaccination were observed, especially after dose three (HRs for dose three ranging from .69 to .81), while replicating the increased risk of myocarditis and pericarditis 1-2 weeks after COVID-19 mRNA vaccination. Slightly increased risks, similar across vaccines, were observed for extrasystoles [HR 1.17 (95% CI 1.06-1.28) for dose one and HR 1.22 (95% CI 1.10-1.36) for dose two, stronger in elderly and males] but not for arrhythmias and for transient ischaemic attack [HR 1.13 (95% CI 1.05-1.23), mainly in elderly] but not for stroke.

conclusionsRisk of myopericarditis (mRNA vaccines only), extrasystoles, and transient ischaemic attack was transiently increased after COVID-19 vaccination, but full vaccination substantially reduced the risk of several more severe COVID-19-associated cardiovascular outcomes, underscoring the protective benefits of complete vaccination.

Indexed as

Cardiovascular DiseasesCOVID-19COVID-19 Vaccines2019-nCoV Vaccine mRNA-1273AdultAgedArrhythmias, CardiacBNT162 VaccineFemaleHumansMaleMiddle AgedMyocardial InfarctionMyocarditisPericarditisRegistries2019-nCoV Vaccine mRNA-1273BNT162 VaccineCOVID-19 VaccinesCardiovascular diseasesCOVID-19 vaccineSurvival analysis

Identifiers

PMID39344920
PMCPMC11704415

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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.