Evidence map›Paper›PMID 37354176›Full record

ArticleJACC. Clinical electrophysiology2023

EDEN (Electrocardiographic Radial Depth Navigation): A Novel Approach to Navigate Inside Heart Muscle.

Christopher G Bruce, D Korel Yildirim, Aravindan Kolandaivelu, Jaffar M Khan, Toby Rogers, Dogangun Uzun, Andrea E Jaimes, Rim N Halaby, Daniel A Herzka, Vasilis C Babaliaros and 2 more

Open access · greenAbstract read
In one paragraph

Article in JACC. Clinical electrophysiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.8field-weighted citation impact, top 14% 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

7 citing papers in PubMed, 8 citations in OpenAlex.

  1. Review
  2. Article
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  7. Transcatheter Myotomy to Reduce Left Ventricular Outflow Obstruction.Journal of the American College of Cardiology · 2024
    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

12 authors at 3 institutions in 1 country.

Christopher G BruceCardiovascular Branch, Division of Intramural Research, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA. Electronic address: https://twitter.com/ChrisGBruce13.
D Korel YildirimCardiovascular Branch, Division of Intramural Research, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA.
Aravindan KolandaiveluCardiovascular Branch, Division of Intramural Research, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA; Johns Hopkins Medical Center, Baltimore, Maryland, USA.
Jaffar M KhanCardiovascular Branch, Division of Intramural Research, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA.
Toby RogersCardiovascular Branch, Division of Intramural Research, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA; MedStar Washington Hospital Center, Washington, DC, USA.
Dogangun UzunCardiovascular Branch, Division of Intramural Research, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA.
Andrea E JaimesCardiovascular Branch, Division of Intramural Research, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA.
Rim N HalabyCardiovascular Branch, Division of Intramural Research, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA.
Daniel A HerzkaCardiovascular Branch, Division of Intramural Research, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA.
Vasilis C BabaliarosStructural Heart and Valve Center, Emory University Hospital, Atlanta, Georgia, USA.
Adam B GreenbaumStructural Heart and Valve Center, Emory University Hospital, Atlanta, Georgia, USA.
Robert J LedermanCardiovascular Branch, Division of Intramural Research, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA. Electronic address: lederman@nih.gov.
National Institutes of Health · USEmory University Hospital · USMedStar Washington Hospital Center · US

Funding

Novel catheter treatment of valve diseaseZIAHL006040 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI LEDERMAN, ROBERT J · 2010 to 2025
$23.6M
MRI catheter design and fabricationZIAHL006041 · NHLBI · NATIONAL HEART, LUNG, AND BLOOD INSTITUTE · PI LEDERMAN, ROBERT J · 2014 to 2025
$12.2M
Intramural NIH HHS ZIA HL006040Intramural NIH HHS ZIA HL006041
6 · The paper itself

Abstract

backgroundIntramyocardial guidewire navigation is a novel technique that allows free transcatheter movement within ventricular muscle. Guidewire radial depth, between endocardial and epicardial surfaces, is ambiguous by x-ray and echocardiography.

objectivesThe aim of this study was to develop a simple tool, EDEN (Electrocardiographic Radial Depth Navigation), to indicate radial depth during intramyocardial guidewire navigation. Combined with routine imaging, EDEN facilitates a new family of intramyocardial catheter procedures to slice, reshape, pace, and ablate the heart.

methodsWe mapped intramyocardial electrograms of left and right ventricular walls and septum during open- and closed-chest swine procedures (N = 53), including MIRTH (Myocardial Intramural Remodeling by Transvenous Tether) ventriculoplasty. We identified radial depth-dependent features on unipolar electrograms. We developed a machine learning-based classifier to indicate categorical position, and modeled the findings in silico to test understanding of the physiology.

resultsEDEN signatures distinguished 5 depth zones throughout left and right ventricular free walls and interventricular septum. Relative ST-segment elevation magnitude best discriminated position and was maximum (40.1 ± 6.5 mV) in the midmyocardium. Subendocardial positions exhibited dominant Q waves with lower-amplitude ST segments (16.8 ± 5.8 mV), whereas subepicardial positions exhibited dominant R waves with lower-amplitude ST segments (15.7 ± 4.8 mV). EDEN was unaffected by pacing-induced left bundle branch block. ST-segment elevation declined over minutes and reappeared after submillimeter guidewire manipulation. Modeling recapitulated EDEN features. The machine learning-based classifier was 97% accurate. EDEN successfully guided MIRTH ventriculoplasty.

conclusionsEDEN provides a simple and reproducible real-time reflection of categorical guidewire-tip radial depth during intramyocardial guidewire navigation. Used in tandem with x-ray, EDEN enables novel, transcatheter, intramyocardial therapies such as MIRTH, SESAME (Septal Surfing Along Midline Endocardium), and cerclage ventriculoplasty.

Indexed as

ElectrocardiographyMyocardiumAnimalsEndocardiumHeartHeart VentriclesSwineEDENintramyocardial electrogramsintramyocardial guidewire navigationMIRTHSESAMEunipolar electrograms

Identifiers

PMID37354176
PMCPMC10524151
OpenAlexW4381488564

What OpenQuestion holds

Textmetadata
LicenceTDM
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.