Evidence map›Paper›PMID 33880931›Full record

ArticleJournal of the American Heart Association2021

Electrocardiographic Imaging of Repolarization Abnormalities.

Laura R Bear, Matthijs Cluitmans, Emma Abell, Julien Rogier, Louis Labrousse, Leo K Cheng, Ian LeGrice, Nigel Lever, Gregory B Sands, Bruce Smaill and 4 more

Abstract readComparative Study
In one paragraph

Article in Journal of the American Heart Association, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed.

  1. Article
  2. Computer-aided characterization of the arrhythmogenic substrate after myocardial infarction.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2026
    Review
  3. Article
  4. Variant patterns of electrical activation and recovery in normal human hearts revealed by noninvasive electrocardiographic imaging.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2024
    Article
  5. Reference for Electrocardiographic Imaging-Based T-Wave Alternans Estimation.IEEE access : practical innovations, open solutions · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Steep repolarization time gradients in pig hearts cause distinct changes in composite electrocardiographic T-wave parameters.Annals of noninvasive electrocardiology : the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc · 2022
    Article
  11. Review
  12. Noninvasive Mapping of Repolarization With Electrocardiographic Imaging.Journal of the American Heart Association · 2021
    Article
  13. Electrocardiographic Imaging of Repolarization Abnormalities.Journal of the American Heart Association · 2021
    Article
  14. Frontiers in physiology · 2021
    Article
  15. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors.

Laura R BearIHU-LIRYCFondation Bordeaux Université Pessac France.
Matthijs CluitmansCARIM School for Cardiovascular Diseases Maastricht UMC Maastricht Netherlands.
Emma AbellIHU-LIRYCFondation Bordeaux Université Pessac France.
Julien RogierOrgan Procurement Unit CHU Pessac France.
Louis LabrousseIHU-LIRYCFondation Bordeaux Université Pessac France.
Leo K ChengAuckland Bioengineering Institute University of Auckland Auckland New Zealand.
Ian LeGriceAuckland Bioengineering Institute University of Auckland Auckland New Zealand.
Nigel LeverAuckland Bioengineering Institute University of Auckland Auckland New Zealand.
Gregory B SandsAuckland Bioengineering Institute University of Auckland Auckland New Zealand.
Bruce SmaillAuckland Bioengineering Institute University of Auckland Auckland New Zealand.
Michel HaïssaguerreIHU-LIRYCFondation Bordeaux Université Pessac France.
Olivier BernusIHU-LIRYCFondation Bordeaux Université Pessac France.
Ruben CoronelIHU-LIRYCFondation Bordeaux Université Pessac France.
Rémi DuboisIHU-LIRYCFondation Bordeaux Université Pessac France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background Dispersion and gradients in repolarization have been associated with life-threatening arrhythmias, but are difficult to quantify precisely from surface electrocardiography. The objective of this study was to evaluate electrocardiographic imaging (ECGI) to noninvasively detect repolarization-based abnormalities. Methods and Results Ex vivo data were obtained from Langendorff-perfused pig hearts (n=8) and a human donor heart. Unipolar electrograms were recorded simultaneously during sinus rhythm from an epicardial sock and the torso-shaped tank within which the heart was suspended. Regional repolarization heterogeneities were introduced through perfusion of dofetilide and pinacidil into separate perfusion beds. In vivo data included torso and epicardial potentials recorded simultaneously in anesthetized, closed-chest pigs (n=5), during sinus rhythm, and ventricular pacing. For both data sets, ECGI accurately reconstructed T-wave electrogram morphologies when compared with those recorded by the sock (ex vivo: correlation coefficient, 0.85 [0.52-0.96], in vivo: correlation coefficient, 0.86 [0.52-0.96]) and repolarization time maps (ex-vivo: correlation coefficient, 0.73 [0.63-0.83], in vivo: correlation coefficient, 0.76 [0.67-0.82]). ECGI-reconstructed repolarization time distributions were strongly correlated to those measured by the sock (both data sets,

Indexed as

AgedAnimalsArrhythmias, CardiacBody Surface Potential MappingCadaverDisease Models, AnimalFemaleHeart Conduction SystemHeart VentriclesHumansMaleSwineECGelectrocardiographic imagingelectrocardiographyelectrophysiology mappingrepolarization

Identifiers

PMID33880931
PMCPMC8200734

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.