First clinical experience of a dedicated irrigated-tip radiofrequency ablation catheter for the ablation of cavotricuspid isthmus-dependent atrial flutter.

Knecht, Sven; Burch, Fabian; Reichlin, Tobias; Spies, Florian; Mühl, Aline; Altmann, David; Ammann, Peter; Schaer, Beat; Osswald, Stefan; Sticherling, Christian; Kühne, Michael (2018). First clinical experience of a dedicated irrigated-tip radiofrequency ablation catheter for the ablation of cavotricuspid isthmus-dependent atrial flutter. Clinical research in cardiology, 107(4), pp. 281-286. Springer-Verlag 10.1007/s00392-017-1180-4

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BACKGROUND Different types of irrigated-tip ablation catheters are available for ablation of atrial flutter (AFL). The aim of this study was to compare an established with a novel dedicated Gold irrigated-tip catheter for ablation of AFL. METHODS AND RESULTS We compared consecutive patients undergoing ablation of AFL using a standard 3.5 mm irrigated-tip platinum-iridium (Pt-Ir) catheter (Thermocool, TC-group) and a 3.5 mm irrigated gold-tip catheter (Gold-group) specifically designed for cavotricuspid isthmus ablation (CTI). The primary endpoint was acute efficacy (net RF time) to achieve block across the CTI. Secondary endpoints included procedure time, fluoroscopy duration, complications, and recurrence of AFL.153 patients (age 68 ± 11 years, 74% male) were included. Net RF time to achieve CTI block was not different between the TC-group (793 ± 503 s) and the Gold-group (706 ± 422 s; p = 0.406). Total procedure time was not significantly different between the TC-group (70 ± 26 min) and the Gold-group (70 ± 27 min; p = 0.769). A significant difference between the groups was identified for the fluoroscopy duration (TC-group: 934 ± 537 s, Gold-group: 596 ± 362 s, p < 0.001). There were no major complications observed in the groups. Recurrence of AFL occurred in 3 of 66 (5%) in the TC-group and in 2 of 87 (2%) in the Gold-group (p = 0.652). CONCLUSIONS In conclusion, acute and chronic efficacy of the irrigated Pt-Ir and gold-tip catheters were comparable. However, the dedicated catheter design was associated with decreased fluoroscopy duration.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Cardiovascular Disorders (DHGE) > Clinic of Cardiology

UniBE Contributor:

Reichlin, Tobias Roman

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1861-0684

Publisher:

Springer-Verlag

Language:

English

Submitter:

Tobias Roman Reichlin

Date Deposited:

02 Oct 2019 09:00

Last Modified:

24 Oct 2019 15:09

Publisher DOI:

10.1007/s00392-017-1180-4

PubMed ID:

29204691

Uncontrolled Keywords:

Atrial flutter Catheter ablation Irrigated gold-tip Radiofrequency ablation

BORIS DOI:

10.7892/boris.126352

URI:

https://boris.unibe.ch/id/eprint/126352

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