Detailed Electrode Catheter Positioning is Important for the Ablation of Outflow Tract Origin Ventricular Arrhythmias
International Journal of Arrhythmia
; : 168-175, 2017.
Article
Dans En
| WPRIM
| ID: wpr-102706
Responsable en Bibliothèque :
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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 AND METHODS: 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.
Texte intégral:
1
Indice:
WPRIM
Sujet Principal:
Troubles du rythme cardiaque
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Récidive
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Cathétérisme
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Radioscopie
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Études de suivi
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Tachycardie ventriculaire
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Ablation par cathéter
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Extrasystoles ventriculaires
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Électrodes
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Cathéters
Type d'étude:
Observational_studies
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Prognostic_studies
Limites du sujet:
Humans
langue:
En
Texte intégral:
International Journal of Arrhythmia
Année:
2017
Type:
Article