Single-catheter approach to pulmonary vein reisolation in selected patients : Data from a prospective registry.
Herz
; 41(7): 625-629, 2016 Nov.
Article
en En
| MEDLINE
| ID: mdl-26883899
ABSTRACT
BACKGROUND:
In addition to different types of single-tip ablation catheters for pulmonary vein (PV) reisolation, a newly developed circular mapping and ablation catheter (nMARQ®) has been available since 2013 and is currently used only in initial PV isolation procedures. In this prospective registry we present feasibility and efficacy data for PV reisolation procedures with a single-catheter approach (nMARQ®) compared with a standard approach using a single-tip ablation catheter and a circular mapping catheter.METHODS:
We included 35 carefully selected patients in this prospective registry and assigned them in a 21 ratio to undergo either PV reisolation with a single-tip ablation catheter together with a steerable circular mapping catheter (group 1) or with the nMARQ®catheter only (group 2). The recurrence rate was calculated for atrial tachyarrhythmias with a duration of > 30 s during a mean follow-up of 12.7 months.RESULTS:
Reisolation of all PVs was achieved in all patients of both groups. In group 2, all gaps could be correctly identified with the nMARQ® catheter. PV isolation was clearly visible on the nMARQ® catheter in all targeted veins. With the nMARQ® catheter the ablation time decreased significantly (6.3 ± 3.0 vs. 18.6 ± 13.9 min, p < 0.05). The recurrence rate of atrial fibrillation did not differ significantly between the two groups (37.5 vs. 45.5 %, p = 0.66).CONCLUSION:
In selected patients, a complete PV reisolation procedure is feasible with a singular circular mapping and ablation catheter. The 12-months success rate is comparable to a classic approach with a combination of a single-tip ablation catheter and a circular mapping catheter.Palabras clave
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Banco de datos:
MEDLINE
Asunto principal:
Venas Pulmonares
/
Fibrilación Atrial
/
Sistema de Registros
/
Ablación por Catéter
Tipo de estudio:
Clinical_trials
/
Etiology_studies
/
Observational_studies
/
Prevalence_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Female
/
Humans
/
Male
/
Middle aged
País como asunto:
Europa
Idioma:
En
Año:
2016
Tipo del documento:
Article