Evidence map›Paper›PMID 40468584›Full record

SynthesisJournal of cardiovascular electrophysiology2025

Fibrosis-Guided Ablation in Patients With Atrial Fibrillation: A Meta-Analysis of Randomized Controlled Trials.

Ahmed Salih, Aman Sutaria, Zeinab Montaser, Tony Pun Magar, Gehad El Ashal, Sheref Zaghloul, Alen Jiji Tom, Mahmood Ahmad, Antonio Creta, Hussam Ali and 4 more

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Journal of cardiovascular electrophysiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 citing papers in PubMed.

  1. Article
  2. Review
  3. Functional mapping identifies early arrhythmogenic substrate in recurrent atrial fibrillation.Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2026
    Article
  4. Article
  5. Discovery ofDiagnostics (Basel, Switzerland) · 2025
    Article
  6. 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

14 authors.

Ahmed SalihSchool of Medicine, Imperial College London, London, UK.
Aman SutariaUniversity College London, London, UK.
Zeinab MontaserNasr City Hospital For Health Insurance, Cairo, Egypt.
Tony Pun MagarOxford Health NHS Foundation Trust, Oxford, UK.
Gehad El AshalAshford and St Peter's Hospitals NHS Foundation Trust, Chertsey, Surrey, UK.
Sheref ZaghloulRoyal Berkshire Hospital, Royal Berkshire NHS Foundation Trust, Reading, UK.
Alen Jiji TomHillingdon Hospital, Hillingdon Hospitals NHS Foundation Trust, London, UK.ORCID 0000-0003-1404-0989
Mahmood AhmadDepartment of Cardiology, Royal Free Hospital, Royal Free London NHS Foundation Trust, London, UK.
Antonio CretaInstitute of Health Informatics Research, University College London, London, UK.
Hussam AliArrhythmia and Clinical Electrophysiology Center, IRCCS, MultiMedica, Sesto San Giovanni, Milan, Italy.ORCID 0000-0002-3469-1028
Sergio BarraDepartment of Cardiology, Hospital da Luz Arrábida, Vila Nova de Gaia, Portugal.ORCID 0000-0003-4064-3767
Michal FarkowskiDepartment of Cardiology, Ministry of Interior and Administration National Medical Institute, Warsaw, Poland.ORCID 0000-0003-1673-7712
Riccardo CappatoArrhythmia and Clinical Electrophysiology Center, IRCCS, MultiMedica, Sesto San Giovanni, Milan, Italy.ORCID 0000-0003-0615-9525
Rui ProvidenciaInstitute of Health Informatics Research, University College London, London, UK.

Funding

RP is supported by the University College London British Heart Foundation Research Accelerator AA/18/6/34223, NIHR grant NIHR129463 and UKRI 10103153 ARISTOTELES
6 · The paper itself

Abstract

Ablation of fibrotic atrial regions has been suggested to improve the results of atrial fibrillation (AF) catheter ablation. We aimed to evaluate the efficacy and safety of fibrosis-guided ablation in addition to pulmonary vein isolation (PVI) among AF patients undergoing ablation through a systematic review of randomized controlled trials. The review protocol was registered on PROSPERO (CRD42024561077). Database searches were conducted on EMBASE and MEDLINE until 6th September 2024. Freedom from atrial arrhythmia (including AF and/or atrial tachycardia) and periprocedural complications were the main outcomes. Twelve trials (total of 3,066 patients) were included in the analysis. Ten studies utilized three-dimensional electroanatomic voltage mapping, and two used magnetic resonance imaging (MRI) to map atrial fibrosis. Compared to PVI, adjunctive fibrosis-guided ablation significantly improved freedom from atrial arrhythmia (risk ratio [RR] 1.13; 95% confidence interval [CI] 1.04 - 1.23; p = 0.004; I² = 35%). This benefit was seen in persistent AF (RR 1.13; 95% CI 1.01 - 1.25; p = 0.03), but not paroxysmal AF (RR 1.16; 95% CI 0.83 - 1.61; p = 0.20). Only low-voltage area ablation showed improved freedom from atrial arrhythmias (RR 1.17; 95% CI 1.06 - 1.28 vs. RR 1.03; 95% CI 0.80 - 1.32 using MRI-voltage detection). A numerically, but nonsignificant, higher rate of periprocedural complications was observed with fibrosis-guided ablation (4.4% vs. 2.8%; RR 1.44; 95% CI 0.82-2.56; p = 0.18) driven by the results of the DECAAF-II trial. Fibrosis-guided ablation, targeting low-voltage areas on electroanatomic mapping, may be an effective adjunctive target to PVI for improving AF freedom, particularly for persistent AF. However, this approach poses safety concerns.

Indexed as

Atrial FibrillationAtrial RemodelingCatheter AblationHeart AtriaPulmonary VeinsAction PotentialsAgedElectrophysiologic Techniques, CardiacFemaleFibrosisHeart RateHumansMaleMiddle AgedRandomized Controlled Trials as TopicRecurrencearrhythmiacatheter ablationmappingscartachycardia

Identifiers

PMID40468584
PMCPMC12337619

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.