Safety and effectiveness of the first contact force ablation catheter with a flexible tip

Nair, Devi; Martinek, Martin; Colley, B. Judson; Sundaram, Sri; Hariharan, Ramesh; Morales, Gustavo; Sommer, Philipp; Healy, Stewart; Siddiqui, Usman; Gibson, Douglas; Chapman, Kristina; Sarver, Anne; Lo, Monica

doi:10.1016/j.hroo.2023.10.006

Heart Rhythm O2

2023

DOI: 10.1016/j.hroo.2023.10.006

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Safety and effectiveness of the first contact force ablation catheter with a flexible tip

Devi Nair,

Martin Martinek,

B. Judson Colley

et al.

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2024

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Cited by 2 publications

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Feasibility and efficacy of 50 W ablation with the TactiFlex catheter for the initial pulmonary vein isolation of atrial fibrillation

Matsumoto,

Tanaka,

Sasaki

et al. 2024

Journal of Arrhythmia

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BackgroundA novel contact force (CF) sensing catheter with a mesh‐shaped irrigation tip (TactiFlexTM SE, Abbott), is expected to provide safe and effective radiofrequency ablation. Our previous study revealed that the TactiFlex catheter needs a higher power for pulmonary vein isolation (PVI) due to the long tip length. This study aimed to examine the feasibility and safety of a 50 W ablation with the TactiFlex for PVI of atrial fibrillation (AF).MethodsA PVI was performed in 100 AF patients using TactiFlex catheters with a 50 W setting, 5‐20 g CF, and 15–20 s ablation time. The primary outcomes included a successful PVI, the incidence of first‐pass isolations (FPIs), the presence of PV conduction gaps, and the incidence of complications.ResultsFPIs were achieved for 82/100 (82%) right pulmonary veins (RPVs) and 87/100 (87%) left PVs (LPVs). Among the unsuccessful RPV FPIs, residual carina potentials were observed in 16/18 cases (89%), PV gaps in 1/18 cases (5.5%), and both carina and PV gaps in 1/18 cases (5.5%). Similarly, among the unsuccessful LPV FPIs, residual carina potentials were observed in 11/13 cases (84.6%), PV gaps in 1/13 cases (7.7%), and both carina and PV gaps in 1/13 cases (7.7%). Periesophageal nerve injury occurred in 1/100 cases (1%), and no cardiac tamponade occurred. The overall AF‐free rate at one‐year was 81.7%.ConclusionsThe 50 W ablation with the TactiFlex demonstrated a high rate of an FPI, low incidence of PV gaps, and proved to be a safe and effective approach for the initial PVI of AF.

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Feasibility and efficacy of 50 W ablation with the TactiFlex catheter for the initial pulmonary vein isolation of atrial fibrillation

Matsumoto,

Tanaka,

Sasaki

et al. 2024

Journal of Arrhythmia

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Acute procedural safety of the latest radiofrequency ablation catheters in atrial fibrillation ablation: Data from a large prospective ablation registry

Arai,

Miyazaki,

Nitta

et al. 2024

Cardiovasc electrophysiol

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BackgroundSafety data of the latest radiofrequency (RF) technologies during atrial fibrillation (AF) ablation in real‐world clinical practice are limited.ObjectivesWe sought to evaluate the acute procedural safety of the four latest ablation catheters commonly used for AF ablation.MethodsA total of 3957 AF ablation procedures performed between January 2022 and December 2023 at 20 centers with either the THERMOCOOL SMARTTOUCH SF (STSF), TactiCath (TC), QDOT Micro (QDM), or TactiFlex (TF) were retrospectively analyzed.ResultsIn total, QDM, STSF, TF, and TC were used in 343 (8.7%), 1793 (45.3%), 1121 (28.4%), and 700(17.7%) procedures. Among 2406 index procedures, electrical pulmonary vein isolations were successfully achieved in 99.5%. Despite similar total procedure times in the four groups, the total fluoroscopic time was significantly shorter for QDM/STSF with CARTO than TF/TC with EnSite (18.7 ± 14 vs. 27.6 ± 20.6 min, p < .001) and longest in the TF group. The incidence of cardiac tamponade was 0.7% (0.5% and 0.9% during index and redo procedures, 0.8% and 0.3% for paroxysmal and non‐paroxysmal AF) and was significantly lower for QDM/STSF than TF/TC (0.2% vs. 1.1%, p = .008) and highest in the TF group. The incidence of cardiac tamponade was higher for TF than TC and STSF than QDM. In the multivariate analysis, TF/TC with EnSite was a significant independent predictor of cardiac tamponade during both the index (odds ratio [OR] = 4.8, 95% confidence interval [CI] = 1.3–17.5, p = .02) and all procedures (OR = 3.0, 95% CI = 1.3–7.2, p = .01).ConclusionsThe incidence of cardiac tamponade and the fluoroscopic time during AF ablation significantly differed among the latest RF catheters and mapping systems in real‐world clinical practice.

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Safety and effectiveness of the first contact force ablation catheter with a flexible tip

Cited by 2 publications

References 24 publications

Feasibility and efficacy of 50 W ablation with the TactiFlex catheter for the initial pulmonary vein isolation of atrial fibrillation

Feasibility and efficacy of 50 W ablation with the TactiFlex catheter for the initial pulmonary vein isolation of atrial fibrillation

Acute procedural safety of the latest radiofrequency ablation catheters in atrial fibrillation ablation: Data from a large prospective ablation registry

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