Evidence map›Paper›PMID 31076965›Full record

ReviewJournal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing2019

Left atrial voltage mapping: defining and targeting the atrial fibrillation substrate.

Iain Sim, Martin Bishop, Mark O'Neill, Steven E Williams

Abstract readReview
In one paragraph

Review in Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing 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

54 citing papers in PubMed.

  1. Article
  2. Combined unipolar and bipolar voltage mapping for atrial substrate assessment: associations with arrhythmia recurrence after redo ablation.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
    Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Left Atrial Remodeling Identification and Catheter Ablation Outcomes WithJournal of the American Heart Association · 2025
    Article
  15. Time's imprint on the left atrium: aging and atrial myopathy.The journal of cardiovascular aging · 2025
    Article
  16. Article
  17. Review
  18. Article
  19. Functional substrate analysis in patients with persistent atrial fibrillation.Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2024
    Article
  20. 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

4 authors.

Iain SimDivision of Imaging Sciences and Biomedical Engineering, King's College London, 4th Floor North Wing, St. Thomas' Hospital, 249 Westminster Bridge Road, London, SE1 7EH, UK.ORCID http://orcid.org/0000-0001-7090-4011
Martin BishopDivision of Imaging Sciences and Biomedical Engineering, King's College London, 4th Floor North Wing, St. Thomas' Hospital, 249 Westminster Bridge Road, London, SE1 7EH, UK.
Mark O'NeillDivision of Imaging Sciences and Biomedical Engineering, King's College London, 4th Floor North Wing, St. Thomas' Hospital, 249 Westminster Bridge Road, London, SE1 7EH, UK.
Steven E WilliamsDivision of Imaging Sciences and Biomedical Engineering, King's College London, 4th Floor North Wing, St. Thomas' Hospital, 249 Westminster Bridge Road, London, SE1 7EH, UK. steven.e.williams@kcl.ac.uk.

Funding

Academy of Medical Sciences SGL017\1007Academy of Medical Sciences SGL017/1053Wellcome Trust 203148Wellcome Trust (GB) WT 203148/Z/16/Z)
6 · The paper itself

Abstract

Low atrial endocardial bipolar voltage, measured during catheter ablation for atrial fibrillation (AF), is a commonly used surrogate marker for the presence of atrial fibrosis. Low voltage shows many useful associations with clinical outcomes, comorbidities and has links to trigger sites for AF. Several contemporary trials have shown promise in targeting low voltage areas as the substrate for AF ablation; however, the results have been mixed. In order to understand these results, a thorough understanding of voltage mapping techniques, the relationship between low voltage and the pathophysiology of AF, as well as the inherent limitations in voltage measurement are needed. Two key questions must be answered in order to optimally apply voltage mapping as the road map for ablation. First, are the inherent limitations of voltage mapping small enough as to be ignored when targeting specific tissue based on voltage? Second, can conventional criteria, using a binary threshold for voltage amplitude, truly define the extent of the atrial fibrotic substrate? Here, we review the latest clinical evidence with regard to voltage-based ablation procedures before analysing the utility and limitations of voltage mapping. Finally, we discuss omnipole mapping and dynamic voltage attenuation as two possible approaches to resolving these issues.

Indexed as

Catheter AblationEpicardial MappingAtrial FibrillationFibrosisHumansAtrial ablationAtrial fibrillationAtrial fibrosisBipolar voltage

Identifiers

PMID31076965
PMCPMC6900285

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.