Atrial fibrillation and cardiac fibrosis

C Sohns, NF Marrouche - European heart journal, 2020 - academic.oup.com
The understanding of atrial fibrillation (AF) evolved from a sole rhythm disturbance towards
the complex concept of a cardiomyopathy based on arrhythmia substrates. There is …

Local impedance for the optimization of radiofrequency lesion delivery: a review of bench and clinical data

GS Chu, P Calvert, P Futyma, WY Ding… - Journal of …, 2022 - Wiley Online Library
Introduction Radiofrequency catheter ablation is a cornerstone of treatment for many cardiac
arrhythmias. Progression in three‐dimensional mapping and contact‐force sensing …

Local catheter impedance drop during pulmonary vein isolation predicts acute conduction block in patients with paroxysmal atrial fibrillation: initial results of the …

M Das, A Luik, E Shepherd, M Sulkin, J Laughner… - EP …, 2021 - academic.oup.com
Aims Radiofrequency ablation creates irreversible cardiac damage through resistive heating
and this temperature change results in a generator impedance drop. Evaluation of a novel …

Lipomatous metaplasia enables ventricular tachycardia by reducing current loss within the protected corridor

L Xu, M Khoshknab, RD Berger, J Chrispin… - Clinical …, 2022 - jacc.org
Background Post–myocardial infarction ventricular tachycardia (VT) is due to re-entry
through surviving conductive myocardial corridors across infarcted tissue. However, not all …

Combined local impedance and contact force for radiofrequency ablation assessment

K Garrott, J Laughner, S Gutbrod, A Sugrue, A Shuros… - Heart rhythm, 2020 - Elsevier
Background The combination of contact force (CF) and local impedance (LI) may improve
tissue characterization and lesion prediction during radiofrequency (RF) ablation. Objective …

High-power short-duration catheter ablation of atrial fibrillation: is it really a new era? Comparison between new and old radiofrequency contact force–sensing …

A Dello Russo, L D'Angelo, P Compagnucci… - Journal of Interventional …, 2024 - Springer
Background The clinical performance of high-power, short-duration (HPSD) pulmonary vein
isolation (PVI) with the novel flexible tip TactiFlex™(TFSE) catheter, as compared to …

Pulmonary vein isolation in atrial fibrillation patients guided by a novel local impedance algorithm: 1‐year outcome from the CHARISMA study

F Solimene, M Giannotti Santoro… - Journal of …, 2021 - Wiley Online Library
Background Highly localized impedance (LI) measurements during atrial fibrillation (AF)
ablation have recently emerged as a viable real‐time indicator of tissue characteristics and …

A novel local impedance algorithm to guide effective pulmonary vein isolation in atrial fibrillation patients: preliminary experience across different ablation sites from …

L Segreti, A De Simone, V Schillaci… - Journal of …, 2020 - Wiley Online Library
Introduction Recently, a novel technology able to measure local impedance (LI) and tissue
characteristics has been made available for clinical use. This analysis explores the …

Local impedance drop predicts durable conduction block in patients with paroxysmal atrial fibrillation

I García-Bolao, P Ramos, A Luik, M S. Sulkin… - Clinical …, 2022 - jacc.org
Objectives This analysis was performed to evaluate the transition of local impedance (LI)
drop during pulmonary vein isolation (PVI) to durable block and mature lesion formation …

Clinical implications of local impedance measurement using the IntellaNav MiFi OI ablation catheter: an ex vivo study

H Iwakawa, M Takigawa, M Goya, T Iwata… - Journal of Interventional …, 2021 - Springer
Purpose Clinical implication of local impedance (LI) for radiofrequency (RF) ablation has not
been fully established. This study aimed to investigate this point using IntellaNav MiFi OI TM …