Detailed Electrode Catheter Positioning is Important for the Ablation of Outflow Tract Origin Ventricular Arrhythmias
International Journal of Arrhythmia
;
: 168-175, 2017.
Artigo
em Inglês
| WPRIM
| ID: wpr-102706
ABSTRACT
BACKGROUND AND OBJECTIVES:
Electroanatomical mapping using a three-dimensional (3D) system has high accuracy and improves the results of the ablation of outflow tract (OT) premature ventricular contraction (PVC) or ventricular tachycardia (VT) but imposes a considerable economic burden. Here, we compared detailed diagnostic catheterization and 3D mapping system for the ablation of OT PVC/VT. MATERIALS ANDMETHODS:
Between June 2012 and February 2017, patients with symptomatic OT PVC/VT underwent radiofrequency ablation. Group 1 underwent detailed diagnostic catheterization (using circular and linear multielectrodes) without a 3D mapping system, while group 2 underwent diagnostic catheterization using a conventional 3D mapping system. Procedural success of PVC reduction, remaining symptoms, need for post-operative medications, and procedural time were evaluated.RESULTS:
Ninety-eight OT PVC/VT cases were consecutively enrolled. The mean follow-up period was 17.7±14.5 months. Neither acute success rate (95% vs. 82%, p=0.06) nor a PVC reduction > 80% (84% vs. 87%, p=0.74) differed significantly between the two groups. The recurrence rates of PVC-related symptoms were similar (12% vs. 7%, p=0.06) between the groups, but the medication requirement for symptomatic PVC differed (12% vs. 29%, p < 0.01). The total procedure time of group 1 was shorter than that of group 2 (132±42 min vs. 157±47 min, p=0.01) and fluoroscopy time (24±15 min vs. 38±22 min, p < 0.01) and ablation time (528±538 sec vs. 899±598 sec, p < 0.01) were also significantly shortened.CONCLUSION:
Detailed electrode catheter positioning is a safe and cost-effective method for the ablation of OT PVC/VT.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Arritmias Cardíacas
/
Recidiva
/
Cateterismo
/
Fluoroscopia
/
Seguimentos
/
Taquicardia Ventricular
/
Ablação por Cateter
/
Complexos Ventriculares Prematuros
/
Eletrodos
/
Catéteres
Tipo de estudo:
Estudo observacional
/
Estudo prognóstico
Limite:
Humanos
Idioma:
Inglês
Revista:
International Journal of Arrhythmia
Ano de publicação:
2017
Tipo de documento:
Artigo
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