Evidence map›Paper›PMID 33357574›Full record

ArticleJACC. Clinical electrophysiology2020

Multicenter Study of Dynamic High-Density Functional Substrate Mapping Improves Identification of Substrate Targets for Ischemic Ventricular Tachycardia Ablation.

Neil T Srinivasan, Jason Garcia, Richard J Schilling, Syed Ahsan, Girish G Babu, Richard Ang, Mehul B Dhinoja, Ross J Hunter, Martin Lowe, Anthony W Chow and 1 more

Open access · hybridAbstract readMulticenter Study
In one paragraph

Article in JACC. Clinical electrophysiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 5% 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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 49 citations in OpenAlex.

  1. Heterogeneity of outcomes reporting in catheter ablation trials for ventricular tachycardia: a systematic review.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
    Pooled it
  2. Review
  3. Review
  4. Article
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  6. Outcomes of functional ventricular tachycardia ablation vs. medical therapy in Chagas cardiomyopathy patients with implantable cardioverter-defibrillators: a competing risks analysis.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 · 2025
    Article
  7. Article
  8. Patient selection, ventricular tachycardia substrate delineation, and data transfer for stereotactic arrhythmia radioablation: a clinical consensus statement of the European Heart Rhythm Association of the European Society of Cardiology and the Heart Rhythm Society.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 · 2025
    Article
  9. Article
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  11. Detailed analysis of electrogram peak frequency to guide ventricular tachycardia substrate mapping.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
  12. Review
  13. Article
  14. Review
  15. Ablation targets of scar-related ventricular tachycardia identified by dynamic functional substrate mapping.The Egyptian heart journal : (EHJ) : official bulletin of the Egyptian Society of Cardiology · 2023
    Article
  16. Optimization of decrementing evoked potential mapping for functional substrate identification in ischaemic ventricular tachycardia 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 · 2023
    Article
  17. Wavefront directionality and decremental stimuli synergistically improve identification of ventricular tachycardia substrate: insights from personalized computational heart models.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 · 2023
    Article
  18. Review
  19. Review
  20. Contemporary Management of Complex Ventricular Arrhythmias.Arrhythmia & electrophysiology review · 2022
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 3 institutions in 1 country.

Neil T SrinivasanDepartment of Cardiac Electrophysiology, The Barts Heart Center, St. Bartholomew's Hospital, London, United Kingdom; Institute of Cardiovascular Science, University College London, London, United Kingdom. Electronic address: neil.srinivasan@nhs.net.
Jason GarciaDepartment of Cardiac Electrophysiology, The Barts Heart Center, St. Bartholomew's Hospital, London, United Kingdom.
Richard J SchillingDepartment of Cardiac Electrophysiology, The Barts Heart Center, St. Bartholomew's Hospital, London, United Kingdom.
Syed AhsanDepartment of Cardiac Electrophysiology, The Barts Heart Center, St. Bartholomew's Hospital, London, United Kingdom.
Girish G BabuRoyal Bournemouth and Christchurch Hospitals, Bournemouth, United Kingdom.
Richard AngDepartment of Cardiac Electrophysiology, The Barts Heart Center, St. Bartholomew's Hospital, London, United Kingdom.
Mehul B DhinojaDepartment of Cardiac Electrophysiology, The Barts Heart Center, St. Bartholomew's Hospital, London, United Kingdom.
Ross J HunterDepartment of Cardiac Electrophysiology, The Barts Heart Center, St. Bartholomew's Hospital, London, United Kingdom.
Martin LoweDepartment of Cardiac Electrophysiology, The Barts Heart Center, St. Bartholomew's Hospital, London, United Kingdom.
Anthony W ChowDepartment of Cardiac Electrophysiology, The Barts Heart Center, St. Bartholomew's Hospital, London, United Kingdom.
Pier D LambiaseDepartment of Cardiac Electrophysiology, The Barts Heart Center, St. Bartholomew's Hospital, London, United Kingdom; Institute of Cardiovascular Science, University College London, London, United Kingdom.
St Bartholomew's Hospital · GBRoyal Bournemouth and Christchurch Hospitals NHS Foundation Trust · GBUniversity College London · GB

Funding

British Heart Foundation FS/14/9/30407Medical Research Council G0901819
6 · The paper itself

Abstract

objectivesThe goal of this study was to evaluate the role of dynamic substrate changes in facilitating conduction delay and re-entry in ventricular tachycardia (VT) circuits.

backgroundThe presence of dynamic substrate changes facilitate functional block and re-entry in VT but are rarely studied as part of clinical VT mapping.

methodsThirty patients (age 67 ± 9 years; 27 male subjects) underwent ablation. Mapping was performed with the Advisor HD Grid multipolar catheter. A bipolar voltage map was obtained during sinus rhythm (SR) and right ventricular sense protocol (SP) single extra pacing. SR and SP maps of late potentials (LP) and local abnormal ventricular activity (LAVA) were made and compared with critical sites for ablation, defined as sites of best entrainment or pace mapping. Ablation was then performed to critical sites, and LP/LAVA identified by the SP.

resultsAt a median follow-up of 12 months, 90% of patients were free from antitachycardia pacing (ATP) or implantable cardioverter-defibrillator shocks. SP pacing resulted in a larger area of LP identified for ablation (19.3 mm

conclusionsLP and LAVA observed during the SP were able to identify regions critical for ablation in VT with a greater accuracy than SR mapping. This may improve substrate characterization in VT ablation. The combination of ablation to critical sites and SP-derived LP/LAVA requires further assessment in a randomized comparator study.

Indexed as

Catheter AblationTachycardia, VentricularAgedHeart VentriclesHumansMaleablationfunctional substrate mappinglate potentialssubstrate mappingventricular tachycardia

Identifiers

PMID33357574
PMCPMC7769061
OpenAlexW3085227574

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.