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Comparison between the novel diamond temp and the classical 8-mm tip ablation catheters in the setting of typical atrial flutter

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Abstract

Purpose

Radiofrequency (RF) catheter ablation is widely accepted as a first-line therapy for cavotricuspid isthmus (CTI)-dependent atrial flutter (AFL). The novel DiamondTemp (DT) catheter with temperature feedback during RF ablation has been released recently on the market. The purpose of this study was to evaluate the impact of DiamondTemp (DT) technology on ablation efficiency during AFL.

Methods

In this single-center study, 30 consecutive patients with typical AFL indicated to ablation of CTI were included. The first 15 patients underwent CTI ablation using 8-mm tip catheter, and the following 15 patients underwent temperature-controlled RF ablation using DT catheter. The endpoints were number and mean total duration of RF applications, mean temperature reached in the setting of CTI, procedural times, and fluoroscopy times.

Results

There were no significant differences between the two groups concerning baseline characteristics. Mean duration of the each application (71.5 s ± 30.6 vs 12.4 s ± 13.2, p value < 0.001), mean total duration of RF applications (517,73 s ± 377,96 vs 112,8 s ± 43,58; p value < 0.001), procedural times (51.6 min ± 24.2 vs 38.6 ± 8.2; p = 0.03), and fluoroscopy times (16.2 min ± 10.2 vs 8 min ± 4.24; p = 0.005) were longer in the 8-mm ablation catheter group. Mean temperature measurements (51.9 °C ± 3.59 vs 56.7 °C ± 3.34, p value < 0.003) were as well lower in the 8-mm ablation catheter group.

Conclusions

Catheter ablation of CTI-dependent AFL by means of DT resulted in a significant reduction of total and single application RF delivery time, procedure, and fluoroscopy times.

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Authors and Affiliations

  1. Heart Rhythm Management Center, Postgraduate Program in Cardiac Electrophysiology and Pacing, European Reference Networks Guard-Heart, Universitair Ziekenhuis Brussel-Vrije Universiteit Brussel, Laarbeeklaan 101, 1090, Brussels, Belgium

    Robbert Ramak, Felicia Lipartiti, Joerelle Mojica, Cinzia Monaco, Antonio Bisignani, Ivan Eltsov, Antonio Sorgente, Lucio Capulzini, Gaetano Paparella, Bernard Deruyter, Saverio Iacopino, Andreea Iulia Motoc, Maria Luiza Luchian, Thiago Guimaraes Osorio, Ingrid Overeinder, Gezim Bala, Alexandre Almorad, Erwin Ströker, Juan Sieira, Luc Jordaens, Pedro Brugada, Carlo de Asmundis & Gian-Battista Chierchia

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  1. Robbert Ramak
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  2. Felicia Lipartiti
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Corresponding author

Correspondence to Gian-Battista Chierchia.

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Ethics approval

The study protocol was carried out in accordance with the ethical principles of medical research involving human subjects established by the Declaration of Helsinki and was approved by the local ethics committee of our Institution.

Conflict of interest

CdA receive compensation on behalf of the center from Biotronik, Abbott, Boston Scientific, Biosense Webster, Microport, and Acutus Medical. CdA received compensation for teaching purposes and proctoring from AF solutions, Medtronic, Biotronik, AtriCure, Daiichi Sankyo, Abbott, Boston Scientific, Biosense Webster, and Acutus Medical. GB received compensation for teaching purposes and proctoring from AF solutions, Medtronic, Biotronik, Abbott, Boston Scientific, Biosense Webster, and Acutus Medical. PB receives research grants Biotronik.

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RR and FL contributed equally to the article as first authors. CdA and GB contributed equally to the article as senior authors.

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Ramak, R., Lipartiti, F., Mojica, J. et al. Comparison between the novel diamond temp and the classical 8-mm tip ablation catheters in the setting of typical atrial flutter. J Interv Card Electrophysiol 64, 751–757 (2022). https://doi.org/10.1007/s10840-022-01152-w

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  • DOI: https://doi.org/10.1007/s10840-022-01152-w

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