TY - JOUR
T1 - Usefulness of intracardiac echocardiography during pulmonary vein isolation with the novel multipolar irrigated ablation catheter (nMARQTM)
AU - Dello Russo, Antonio
AU - Fassini, Gaetano
AU - Casella, Michela
AU - Di Monaco, Antonio
AU - Riva, Stefania
AU - Romano, Valentina
AU - Moltrasio, Massimo
AU - Tundo, Fabrizio
AU - De Martino, Giuseppe
AU - Majocchi, Benedetta
AU - Marino, Vittoria
AU - Russo, Eleonora
AU - Pizzamiglio, Francesca
AU - Del Giorno, Giuseppe
AU - Pelargonio, Gemma
AU - Di Biase, Luigi
AU - Natale, Andrea
AU - Tondo, Claudio
N1 - Publisher Copyright:
© 2015, Springer Science+Business Media New York.
PY - 2015/10/14
Y1 - 2015/10/14
N2 - Background: Previous studies reported the usefulness of an irrigated circular radiofrequency ablation catheter (nMARQTM, Biosense Webster) for pulmonary vein isolation (PVI). We evaluated the role of intracardiac echocardiography (ICE) to optimize the manipulation of nMARQTM catheter. Methods: Thirty-seven patients (pts), (mean age 55 ± 12 years; 28 males) were enrolled to perform PVI. All pts underwent PVI with the nMARQTM catheter. In 20 pts (group 1), we utilized ICE to guide nMARQTM catheter positioning at the PV ostia; in the other 17 pts (group 2), nMARQTM catheter was positioned at the PV ostia guided by fluoroscopy and TissueConnectTM technology. Results: Radiofrequency (RF) applications were significantly lower in group 1 compared to group 2 [left PVs: 6 (range 3 to 12) in group 1 and 12 (range 5 to 16) in group 2 (p < 0.001); right PVs: 7 (range 4 to 14) in group 1 and 10 (range 5 to 16) in group 2 (p = 0.04)]; similarly regarding the time of RF delivery [left PVs: 318 ± 194 s in group 1 vs. 542 ± 104 s in group 2 (p < 0.001); right PVs: 410 ± 270 s in group 1 vs. 550 ± 156 s in group 2 (p = 0.05)]. Fluoroscopy time (23 ± 9 min vs. 28 ± 5 min; p = 0.05), procedural time (83 ± 23 min vs. 160 ± 42 min; p < 0.001), and radiation dose (109 ± 20 Gy/cm2 vs. 127 ± 29 Gy/cm2; p = 0.04) were significantly lower in group 1 compared to group 2. Conclusion: ICE might be a useful tool to guide nMARQTM catheter position in the left atrium during atrial fibrillation (AF) ablation procedures.
AB - Background: Previous studies reported the usefulness of an irrigated circular radiofrequency ablation catheter (nMARQTM, Biosense Webster) for pulmonary vein isolation (PVI). We evaluated the role of intracardiac echocardiography (ICE) to optimize the manipulation of nMARQTM catheter. Methods: Thirty-seven patients (pts), (mean age 55 ± 12 years; 28 males) were enrolled to perform PVI. All pts underwent PVI with the nMARQTM catheter. In 20 pts (group 1), we utilized ICE to guide nMARQTM catheter positioning at the PV ostia; in the other 17 pts (group 2), nMARQTM catheter was positioned at the PV ostia guided by fluoroscopy and TissueConnectTM technology. Results: Radiofrequency (RF) applications were significantly lower in group 1 compared to group 2 [left PVs: 6 (range 3 to 12) in group 1 and 12 (range 5 to 16) in group 2 (p < 0.001); right PVs: 7 (range 4 to 14) in group 1 and 10 (range 5 to 16) in group 2 (p = 0.04)]; similarly regarding the time of RF delivery [left PVs: 318 ± 194 s in group 1 vs. 542 ± 104 s in group 2 (p < 0.001); right PVs: 410 ± 270 s in group 1 vs. 550 ± 156 s in group 2 (p = 0.05)]. Fluoroscopy time (23 ± 9 min vs. 28 ± 5 min; p = 0.05), procedural time (83 ± 23 min vs. 160 ± 42 min; p < 0.001), and radiation dose (109 ± 20 Gy/cm2 vs. 127 ± 29 Gy/cm2; p = 0.04) were significantly lower in group 1 compared to group 2. Conclusion: ICE might be a useful tool to guide nMARQTM catheter position in the left atrium during atrial fibrillation (AF) ablation procedures.
KW - Atrial fibrillation ablation
KW - Intracardiac echocardiography
KW - nMARQ ablation catheter
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U2 - 10.1007/s10840-015-0026-0
DO - 10.1007/s10840-015-0026-0
M3 - Article
C2 - 26099283
AN - SCOPUS:84941419361
SN - 1383-875X
VL - 44
SP - 39
EP - 45
JO - Journal of Interventional Cardiac Electrophysiology
JF - Journal of Interventional Cardiac Electrophysiology
IS - 1
ER -