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Ablation of Atrial Fibrillation: First Single-Center Latin-American Consecutive Series

Ablation of Atrial Fibrillation: First Single-Center Latin-American Consecutive Series

AF Ablation & First Latin-American Series

AF Ablation & First Latin-American Series

 

DOI:
http://dx.doi.org/10.5031/v1i2.RIA10110

Id:
v1i2.RIA10110

Idioma del manuscrito:
Spanish

País:
Colombia

Categoría (seleccionar una categoría apropiada para el envío) :
Artículos Originales

Palabras clave:
Ablación por catéter, Fibrilación auricular

Autores y títulos (Ejemplo: Fernandes C., MD, PhD, etc):
William Uribe MD1; Edgardo González MD1; Adrian Baranchuk MD FACC2; Ana Milena Herrera MD, Ph.D3; Eduardo Medina MD1; Jorge Marín MD1; and Mauricio Duque MD1

Queen's University, 76 Stuart St, Kingston
barancha@kgh.kari.net

 

Resumen en Español o Portugués

Background. Pulmonary veins (PV) are well recognized triggers of atrial fibrillation (AF). The aim of this study was to evaluate the reproducibility, safety, and effectiveness of antral electric isolation of PV in patients with paroxysmal AF (PAF), in consecutive patients from a single Latin-American center. Methods: Patients with recurrent PAF refractory to at least one antiarrhythmic drug were included in the analysis. Antral electric isolation of PV was performed guided by electric potentials, intracardiac echocardiography (ICE), conventional fluoroscopy and non fluoroscopic three-dimensional mapping (Ensite NaVx® and CARTO®). Results: One hundred consecutive patients underwent antral electrical isolation. Four pulmonary veins were isolated in 93% of the cases. Irrigated tip catheter was used in 96% of the cases with a maximal power of 35 Watts. Complications were present in 7% of the patients: three cardiac tamponades, one transitory elevation of the ST-segment, one circular catheter entrapment, one femoral pseudoaneurism, one transient ischemic stroke and one significant but asymptomatic PV stenosis. No deaths occurred in this cohort. In a 12 month follow up, 88.6% were free of AF recurrences. A second procedure was performed in five patients. No predictors of recurrence were identified. Conclusions. Antral electric isolation of the PV in patients with paroxysmal AF is a safe, reproducible and effective technique, feasible for a center located in a non-developed country.

Resumen en Inglés

Background. Pulmonary veins (PV) are well recognized triggers of atrial fibrillation (AF). The aim of this study was to evaluate the reproducibility, safety, and effectiveness of antral electric isolation of PV in patients with paroxysmal AF (PAF), in consecutive patients from a single Latin-American center. Methods: Patients with recurrent PAF refractory to at least one antiarrhythmic drug were included in the analysis. Antral electric isolation of PV was performed guided by electric potentials, intracardiac echocardiography (ICE), conventional fluoroscopy and non fluoroscopic three-dimensional mapping (Ensite NaVx® and CARTO®). Results: One hundred consecutive patients underwent antral electrical isolation. Four pulmonary veins were isolated in 93% of the cases. Irrigated tip catheter was used in 96% of the cases with a maximal power of 35 Watts. Complications were present in 7% of the patients: three cardiac tamponades, one transitory elevation of the ST-segment, one circular catheter entrapment, one femoral pseudoaneurism, one transient ischemic stroke and one significant but asymptomatic PV stenosis. No deaths occurred in this cohort. In a 12 month follow up, 88.6% were free of AF recurrences. A second procedure was performed in five patients. No predictors of recurrence were identified. Conclusions. Antral electric isolation of the PV in patients with paroxysmal AF is a safe, reproducible and effective technique, feasible for a center located in a non-developed country.

 

Contenido

Ablation of Atrial Fibrillation: First Single-Center Latin-American Consecutive Series

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