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- Title
Analysis of catheter contact force during atrial fibrillation ablation using the robotic navigation system: results from a randomized study.
- Authors
Russo, Antonio; Fassini, Gaetano; Conti, Sergio; Casella, Michela; Monaco, Antonio; Russo, Eleonora; Riva, Stefania; Moltrasio, Massimo; Tundo, Fabrizio; Martino, Giuseppe; Gallinghouse, G.; Biase, Luigi; Natale, Andrea; Tondo, Claudio; Dello Russo, Antonio; Di Monaco, Antonio; De Martino, Giuseppe; Gallinghouse, G Joseph; Di Biase, Luigi
- Abstract
<bold>Purpose: </bold>Contact with cardiac tissue is an important determinant of lesion efficacy during atrial fibrillation (AF) ablation. The Sensei X™ robotic navigation system (RNS) (Hansen Medical, Mountain View, CA, USA) has been validated for contact force (CF) sensing expressed in grams (g). The Thermocool® SmartTouch™ catheter enables the measurement of catheter tip CF and direction inside the heart. We aimed to investigate the catheter CF with and without RNS during pulmonary vein isolation (PVI) procedures.<bold>Methods: </bold>Eighty patients with symptomatic AF (56 males, age 63 ± 18) were enrolled in this study. Fifty-seven patients had paroxysmal AF and 23 early persistent AF. All procedures were performed with the Thermocool® SmartTouch™ ablation catheter. Forty patients were randomized to perform PVI with the Sensei X™ RNS (group 1), while in the other 40 patients (group 2), PVI was performed without the RNS.<bold>Results: </bold>AF ablation was performed successfully in all patients without complications, while contact force was kept in the established 10-40 g range. A significantly higher CF was documented on the PVs in group 1 compared to group 2. The 1-year freedom from AF recurrence was higher in group 1 compared to group 2 (90 vs. 65 %, p = 0.04). Moreover, a significant reduction of fluoroscopy time was noted in the RNS group (13 ± 10 vs. 20 ± 10 min, respectively, p = 0.05).<bold>Conclusions: </bold>The Sensei X™ RNS permits a significantly higher CF during transcatheter AF ablation with a low rate of AF recurrence at clinical follow-up.
- Subjects
ATRIAL arrhythmias; ROBOTICS; CARDIOPULMONARY system; ORGANS (Anatomy); ENGINEERING
- Publication
Journal of Interventional Cardiac Electrophysiology, 2016, Vol 46, Issue 2, p97
- ISSN
1383-875X
- Publication type
journal article
- DOI
10.1007/s10840-016-0102-0