Evidence map›Paper›PMID 35705890›Full record

ArticleCardiovascular engineering and technology2023

Surgical Ablation of Cardiac Tissue with Nanosecond Pulsed Electric Fields in Swine.

Frency Varghese, Jonathan M Philpott, Johanna U Neuber, Barbara Hargrave, Christian W Zemlin

Abstract read
PubMed Publisher
In one paragraph

Article in Cardiovascular engineering and technology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
3.1field-weighted citation impact, top 8% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.

  1. Ventricular pulsed field ablation from bench to bedside: preclinical and clinical evidence from a systematic review and meta-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 · 2026
    Pooled it
  2. Review
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  7. Comparative study of nanosecond and microsecond pulsed field ablation for pulmonary vein isolation in preclinical 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 · 2025
    Article
  8. Article
  9. Nanosecond pulse electric field treatment initiates mitochondrial apoptosis pathway by inducing mitochondrial morphological changes in myocardial cells.Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2024
    Article
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  12. Opportunities and Challenges in Catheter-Based Irreversible Electroporation for Ventricular Tachycardia.Pathophysiology : the official journal of the International Society for Pathophysiology · 2024
    Review
  13. Article
  14. Article
  15. Electroporation Parameters for Human Cardiomyocyte Ablation In Vitro.Journal of cardiovascular development and disease · 2022
    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

5 authors at 4 institutions in 1 country.

Frency VargheseDepartment of Electrical and Computer Engineering, Old Dominion University, Norfolk, VA, USA.
Jonathan M PhilpottDepartment of Surgery, Eastern Virginia Medical School, Norfolk, VA, USA.
Johanna U NeuberDepartment of Electrical and Computer Engineering, Old Dominion University, Norfolk, VA, USA.
Barbara HargraveCenter for Bioelectrics, Old Dominion University, Norfolk, VA, USA.
Christian W ZemlinDepartment of Electrical and Computer Engineering, Old Dominion University, Norfolk, VA, USA. zemlinc@wustl.edu.ORCID 0000-0001-5834-5544
Old Dominion University · USEastern Virginia Medical School · USUniversity of Massachusetts Chan Medical School · USWashington University in St. Louis · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMyocardial tissue can be ablated by the application nanosecond pulsed fields (nsPEFs). The applied electric fields irreversibly permeabilize cell membranes and thereby kill myocytes while leaving the extracellular matrix intact.

methodsIn domestic pigs (n = 10), hearts were exposed via sternotomy and either ablated in vivo ([Formula: see text] = 5) or in excised, Langendorff-perfused hearts ([Formula: see text] = 5). The nsPEFs consisted of 6-36 pulses of 300 ns each, delivered at 3-6 Hz; the voltage applied varied from 10 to 12 kV. Atrial lesions were either created after inserting the bottom jaw of the bipolar clamp into the atrium via a purse string incision (2-3 lesions per atrium) or by clamping a double layer of tissue at the appendages (one lesion per atrium). Ventricular lesions were created after an incision at the apex. The transmurality of each lesion was determined at three points along the lesion using a triphenyl tetrazolium chloride (TTC) stain.

resultsAll 27 atrial lesions were transmural. This includes 13/13 purse string lesions (39/39 sections, tissue thickness 2.5-4.5 mm) and 14/14 appendage lesions (42/42 sections, tissue thickness 8-12 mm). All 3 right ventricular lesions were transmural (9/9 sections, 18 pulses per lesion). Left ventricular lesions were always transmural for 36 pulses (3/3 lesions, 9/9 sections). All lesions have highly consistent width across the wall. There were no pulse-induced arrhythmias or other complications during the procedure.

conclusionsnsPEF ablation reliably created acute lesions in porcine atrial and ventricular myocardium. It has far better penetration and is faster than both radiofrequency ablation and cryoablation and it is free from thermal side effects.

Indexed as

Atrial FibrillationCatheter AblationAnimalsHeart AtriaMyocardiumSus scrofaSwineAtrial fibrillationCox Maze IVIrreversible electroporationNanosecond ablationSurgical ablation

Identifiers

PMID35705890
OpenAlexW4282982902

What Socratic holds

Textmetadata
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 Socratic graph.