TY - JOUR
T1 - Analysis of catheter contact force during atrial fibrillation ablation using the robotic navigation system
T2 - results from a randomized study
AU - Dello Russo, Antonio
AU - Fassini, Gaetano
AU - Conti, Sergio
AU - Casella, Michela
AU - Di Monaco, Antonio
AU - Russo, Eleonora
AU - Riva, Stefania
AU - Moltrasio, Massimo
AU - Tundo, Fabrizio
AU - de Martino, Giuseppe
AU - Gallinghouse, G. Joseph
AU - Di Biase, Luigi
AU - Natale, Andrea
AU - Tondo, Claudio
PY - 2016/1/21
Y1 - 2016/1/21
N2 - Purpose: 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. Methods: 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. Results: 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). Conclusions: The Sensei X™ RNS permits a significantly higher CF during transcatheter AF ablation with a low rate of AF recurrence at clinical follow-up.
AB - Purpose: 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. Methods: 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. Results: 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). Conclusions: The Sensei X™ RNS permits a significantly higher CF during transcatheter AF ablation with a low rate of AF recurrence at clinical follow-up.
KW - Atrial fibrillation
KW - Catheter ablation
KW - Contact force
KW - Pulmonary vein isolation
KW - Robotic navigation system
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U2 - 10.1007/s10840-016-0102-0
DO - 10.1007/s10840-016-0102-0
M3 - Article
C2 - 26798037
AN - SCOPUS:84955250249
SN - 1383-875X
SP - 1
EP - 7
JO - Journal of Interventional Cardiac Electrophysiology
JF - Journal of Interventional Cardiac Electrophysiology
ER -