ArticleCirculation. Arrhythmia and electrophysiology2019
Novel Irrigated Temperature-Controlled Lattice Ablation Catheter for Ventricular Ablation: A Preclinical Multimodality Biophysical Characterization.
Article in Circulation. Arrhythmia and electrophysiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
What it found
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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.
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.
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Who cites it
14 citing papers in PubMed, 23 citations in OpenAlex.
- Lattice-tip vs. standard irrigated focal-tip catheter for radiofrequency ablation of the cavotricuspid isthmus - the LINEAR randomized trial.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 · 2026Trial
- Dual-energy lattice-tip ablation system for persistent atrial fibrillation: a randomized trial.Nature medicine · 2024Trial
- Lattice-tip dual energy ablation creates effective ventricular lesions through transmural scar that might inadvertently increase lead capture thresholds on the opposing surface.Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2026Article
- Ablation in Adult Congenital Heart Disease Using a Dual-Energy, Lattice-Tip, Large-Footprint, Map-and-Ablate Catheter.JACC. Case reports · 2026Article
- Ablation Methods and Catheter Settings for Ventricular Tachycardia Ablation: A Bench to Bedside Review: Part 1.Arrhythmia & electrophysiology review · 2026Review
- Ablation Methods and Catheter Settings for Ventricular Tachycardia Ablation: A Bench to Bedside Review: Part 2.Arrhythmia & electrophysiology review · 2026Review
- Lattice-shaped catheter ablation for a right lateral pathway in Wolff-Parkinson-White syndrome.HeartRhythm case reports · 2025Article
- Mapping and ablation of ventricular tachycardia using dual-energy lattice-tip focal catheter: early feasibility and safety study.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 · 2024Article
- Bipolar Ablation From the Anterior Interventricular Vein to the Left Ventricle.JACC. Case reports · 2024Article
- A large footprint focal catheter toggling between pulsed field and radiofrequency energy: first clinical experience for 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 · 2024Article
- How the new technologies and tools will change the electrophysiology of the future.European heart journal supplements : journal of the European Society of Cardiology · 2023Article
- Effect of Baseline Impedance in Radiofrequency Delivery on Lesion Characteristics and the Relationship Between Impedance and Steam Pops.Frontiers in cardiovascular medicine · 2022Article
- Therapeutic options for patients with advanced atrial fibrillation: from lifestyle and medication to catheter and surgical ablation.Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation · 2020Review
- Pulsed Field Ablation Using a Lattice Electrode for Focal Energy Delivery: Biophysical Characterization, Lesion Durability, and Safety Evaluation.Circulation. Arrhythmia and electrophysiology · 2020Article
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 2 countries.
Funding
Abstract
backgroundVentricular tachycardia ablation is often limited by insufficient lesion creation. A novel radiofrequency catheter with an expandable lattice electrode has a larger surface area capable of delivering higher currents at a lower density to potentially increase lesion dimensions without overheating.
methodsThis 8F bidirectional irrigated catheter (Sphere-9, Affera Inc) has a 9 mm spherical lattice tip ("lattice") with an effective surface area 10-fold larger than standard linear catheters. Nine surface thermocouples provide temperature feedback to a proprietary high-current generator operating in a temperature-controlled mode. Ex vivo phase: in 11 bovine hearts, unipolar ablation at 30, 60, and 120 seconds was compared between the lattice (Tmax60°C) and a standard linear irrigated-tip catheter (40 W) at contact force of 10 g. In 5 porcine hearts, bipolar ablation was compared between the catheters (Tmax60°C versus 40 W; 60 seconds). In vivo phase: in 9 swine, ventricular ablation at Tmax60°C versus 40 W was performed for 60 seconds. In addition, direct tissue temperature at 3- and 7-mm tissue depth was measured in a thigh muscle preparation.
resultsEx vivo: lattice produced deeper lesions at 30, 60, and 120 seconds application duration (6.7±1.3 versus 4.8±1.2 mm; 8.3±1.4 versus 5.4±0.8 mm; 10.0±1.6 versus 6.1±1.6 mm, respectively,
conclusionsThis novel radiofrequency system produces larger ventricular lesions compared with standard irrigated catheters and at a lower risk of tissue overheating. This may improve the efficacy of ventricular tachycardia ablation procedures while reducing the number of applications and procedural duration.
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Registered trials
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.