Evidence map›Paper›PMID 35262692›Full record

ArticleEuropean heart journal2022

Biological substrate modification suppresses ventricular arrhythmias in a porcine model of chronic ischaemic cardiomyopathy.

James F Dawkins, Ashkan Ehdaie, Russell Rogers, Daniel Soetkamp, Jackelyn Valle, Kevin Holm, Lizbeth Sanchez, Ileana Tremmel, Asma Nawaz, Michael Shehata and 7 more

Open access · greenAbstract read
In one paragraph

Article in European heart journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
5.1field-weighted citation impact, top 4% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Moving Beyond the Hype in Extracellular Vesicle Therapy.JACC. Basic to translational science · 2026
    Article
  4. Review
  5. Article
  6. Cardiac fibrosis: from mechanisms and models to medicines.Trends in pharmacological sciences · 2025
    Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Review
  15. Review
  16. Review
  17. Review
  18. Review
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

17 authors at 2 institutions in 1 country.

James F DawkinsSmidt Heart Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA.ORCID 0000-0002-2387-1488
Ashkan EhdaieSmidt Heart Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA.ORCID 0000-0003-0097-0026
Russell RogersSmidt Heart Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA.ORCID 0000-0003-2438-7433
Daniel SoetkampSmidt Heart Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA.
Jackelyn ValleSmidt Heart Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA.
Kevin HolmSmidt Heart Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA.
Lizbeth SanchezSmidt Heart Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA.
Ileana TremmelSmidt Heart Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA.ORCID 0000-0003-1546-8493
Asma NawazSmidt Heart Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA.
Michael ShehataSmidt Heart Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA.
Xunzhang WangSmidt Heart Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA.
Adityo PrakosaAlliance for Cardiovascular Diagnostic and Treatment Innovation, Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA.ORCID 0000-0002-1590-0322
Joseph YuAlliance for Cardiovascular Diagnostic and Treatment Innovation, Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA.ORCID 0000-0002-8282-7399
Jennifer E Van EykSmidt Heart Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA.
Natalia TrayanovaAlliance for Cardiovascular Diagnostic and Treatment Innovation, Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA.
Eduardo MarbánSmidt Heart Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA.ORCID 0000-0002-3863-280X
Eugenio CingolaniSmidt Heart Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA 90048, USA.
Cedars-Sinai Medical Center · USJohns Hopkins University · US

Funding

Virtual Electrophysiology LaboratoryDP1HL123271 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI TRAYANOVA, NATALIA A. · 2013 to 2017
$4.0M
Biological pacemaker from proof-of-concept to clinicR01HL135866 · NHLBI · CEDARS-SINAI MEDICAL CENTER · PI CINGOLANI, EUGENIO, GOLDHABER, JOSHUA I · 2017 to 2020
$3.2M
ANCILLARY STUDY OF SUBSTRATE AND INTERVENTION MECHANISMS FOR MALIGNANT ARRHYTHMIAR01HL116280 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI NAZARIAN, SAMAN · 2013 to 2016
$1.2M
Preclinical development of biological pacemakersK01HL133510 · NHLBI · CEDARS-SINAI MEDICAL CENTER · PI DAWKINS, JAMES F. · 2017 to 2021
$676k
NHLBI NIH HHS DP1 HL123271NHLBI NIH HHS K01 HL133510NHLBI NIH HHS R01 HL116280NHLBI NIH HHS R01 HL135866
6 · The paper itself

Abstract

aimsCardiomyopathy patients are prone to ventricular arrhythmias (VA) and sudden cardiac death. Current therapies to prevent VA include radiofrequency ablation to destroy slowly conducting pathways of viable myocardium which support re-entry. Here, we tested the reverse concept, namely that boosting local tissue viability in zones of slow conduction might eliminate slow conduction and suppress VA in ischaemic cardiomyopathy. METHODS AND

resultsExosomes are extracellular vesicles laden with bioactive cargo. Exosomes secreted by cardiosphere-derived cells (CDCEXO) reduce scar and improve heart function after intramyocardial delivery. In a VA-prone porcine model of ischaemic cardiomyopathy, we injected CDCEXO or vehicle into zones of delayed conduction defined by electroanatomic mapping. Up to 1-month post-injection, CDCEXO, but not the vehicle, decreased myocardial scar, suppressed slowly conducting electrical pathways, and inhibited VA induction by programmed electrical stimulation. In silico reconstruction of electrical activity based on magnetic resonance images accurately reproduced the suppression of VA inducibility by CDCEXO. Strong anti-fibrotic effects of CDCEXO, evident histologically and by proteomic analysis from pig hearts, were confirmed in a co-culture assay of cardiomyocytes and fibroblasts.

conclusionBiological substrate modification by exosome injection may be worth developing as a non-destructive alternative to conventional ablation for the prevention of recurrent ventricular tachyarrhythmias.

Indexed as

CardiomyopathiesCatheter AblationMyocardial IschemiaTachycardia, VentricularAnimalsArrhythmias, CardiacCicatrixHumansProteomicsSwineArrhythmiaCardiac stem cellsCardiosphere-derived cellsExosomesHeart failureIschaemic cardiomyopathyMyocardial infarctionVentricular tachycardia

Identifiers

PMID35262692
PMCPMC9649918
OpenAlexW4210396189

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.