Fibrilación auricular focal. Características clínicas y resultado de la ablación con radiofrecuencia

Background: Atrial fibrillation can originate in arrhythmogenic foci coming from the pulmonary veins. Patients with atrial fibrillation, initiated from triggering foci, can be treated with radiofrequency ablation. Aim: To report the results of radiofrequency ablation in patients with focal atrial fi...

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Autores principales:	Asenjo G,René, Morris C,Raimundo, Oyarzún F,Rodulfo, Dussaillant N,Gastón, Ortiz O,Mario, Nicola S,Martín, Tapia S,Eduardo, Valencia M,Marisol, Sandoval C,Marjorie, Morales V,Patricia, Avalos E,Viviana, Pezoa O,Blanca, Von Krestschmann R,Leonardo, Abufhele B,Alejandro, Oyonarte G,Miguel
Lenguaje:	Spanish / Castilian
Publicado:	Sociedad Médica de Santiago 2002
Materias:	Arrhythmia Atrial fibrillation Electric counter shock
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872002000500002
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spelling	oai:scielo:S0034-988720020005000022002-08-22Fibrilación auricular focal. Características clínicas y resultado de la ablación con radiofrecuenciaAsenjo G,RenéMorris C,RaimundoOyarzún F,RodulfoDussaillant N,GastónOrtiz O,MarioNicola S,MartínTapia S,EduardoValencia M,MarisolSandoval C,MarjorieMorales V,PatriciaAvalos E,VivianaPezoa O,BlancaVon Krestschmann R,LeonardoAbufhele B,AlejandroOyonarte G,Miguel Arrhythmia Atrial fibrillation Electric counter shock Background: Atrial fibrillation can originate in arrhythmogenic foci coming from the pulmonary veins. Patients with atrial fibrillation, initiated from triggering foci, can be treated with radiofrequency ablation. Aim: To report the results of radiofrequency ablation in patients with focal atrial fibrillation. Patients and methods: Thirteen patients with focal atrial fibrillation (8 male, aged 19 to 60 years old) are reported. Twelve had frequent crises refractory to antiarrhythmic drugs. Two had also flutter and tachycardia. One had a permanent atrial fibrillation lasting five years. Two had ventricular dysfunction and left atrial dilatation. The triggering focus was identified during the electrophysiological study, by the precocity of the potential that initiated the atrial fibrillation. Results: All patients had early atrial extrasystolic beats, isolated or repetitives, that preceded atrial fibrillation. During the electrophysiological study, 18 foci (3 in the right and 15 in the left atrium all in pulmonary veins) were identified. Radiofrequency ablation had immediate success in 11 patients. In 5, a flutter was also ablated. One patient had a sinus dysfunction after the procedure and atrial fibrillation was not eliminated. In this and other patient in whom the procedure failed, a pacemaker was implanted and the atrioventricular node was blocked. In a follow up, ranging from 4 to 31 months, eight patients are asymptomatic and 3 recidivated. No complications have been detected. Conclusions: Patients with focal atrial fibrillation have common clinical and electrocardiographic features. Radiofrequency ablation of the triggering focus is possible and effective in most cases (Rev Méd Chile 2002; 130: 482-94)info:eu-repo/semantics/openAccessSociedad Médica de SantiagoRevista médica de Chile v.130 n.5 20022002-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872002000500002es10.4067/S0034-98872002000500002
institution	Scielo Chile
collection	Scielo Chile
language	Spanish / Castilian
topic	Arrhythmia Atrial fibrillation Electric counter shock
spellingShingle	Arrhythmia Atrial fibrillation Electric counter shock Asenjo G,René Morris C,Raimundo Oyarzún F,Rodulfo Dussaillant N,Gastón Ortiz O,Mario Nicola S,Martín Tapia S,Eduardo Valencia M,Marisol Sandoval C,Marjorie Morales V,Patricia Avalos E,Viviana Pezoa O,Blanca Von Krestschmann R,Leonardo Abufhele B,Alejandro Oyonarte G,Miguel Fibrilación auricular focal. Características clínicas y resultado de la ablación con radiofrecuencia
description	Background: Atrial fibrillation can originate in arrhythmogenic foci coming from the pulmonary veins. Patients with atrial fibrillation, initiated from triggering foci, can be treated with radiofrequency ablation. Aim: To report the results of radiofrequency ablation in patients with focal atrial fibrillation. Patients and methods: Thirteen patients with focal atrial fibrillation (8 male, aged 19 to 60 years old) are reported. Twelve had frequent crises refractory to antiarrhythmic drugs. Two had also flutter and tachycardia. One had a permanent atrial fibrillation lasting five years. Two had ventricular dysfunction and left atrial dilatation. The triggering focus was identified during the electrophysiological study, by the precocity of the potential that initiated the atrial fibrillation. Results: All patients had early atrial extrasystolic beats, isolated or repetitives, that preceded atrial fibrillation. During the electrophysiological study, 18 foci (3 in the right and 15 in the left atrium all in pulmonary veins) were identified. Radiofrequency ablation had immediate success in 11 patients. In 5, a flutter was also ablated. One patient had a sinus dysfunction after the procedure and atrial fibrillation was not eliminated. In this and other patient in whom the procedure failed, a pacemaker was implanted and the atrioventricular node was blocked. In a follow up, ranging from 4 to 31 months, eight patients are asymptomatic and 3 recidivated. No complications have been detected. Conclusions: Patients with focal atrial fibrillation have common clinical and electrocardiographic features. Radiofrequency ablation of the triggering focus is possible and effective in most cases (Rev Méd Chile 2002; 130: 482-94)
author	Asenjo G,René Morris C,Raimundo Oyarzún F,Rodulfo Dussaillant N,Gastón Ortiz O,Mario Nicola S,Martín Tapia S,Eduardo Valencia M,Marisol Sandoval C,Marjorie Morales V,Patricia Avalos E,Viviana Pezoa O,Blanca Von Krestschmann R,Leonardo Abufhele B,Alejandro Oyonarte G,Miguel
author_facet	Asenjo G,René Morris C,Raimundo Oyarzún F,Rodulfo Dussaillant N,Gastón Ortiz O,Mario Nicola S,Martín Tapia S,Eduardo Valencia M,Marisol Sandoval C,Marjorie Morales V,Patricia Avalos E,Viviana Pezoa O,Blanca Von Krestschmann R,Leonardo Abufhele B,Alejandro Oyonarte G,Miguel
author_sort	Asenjo G,René
title	Fibrilación auricular focal. Características clínicas y resultado de la ablación con radiofrecuencia
title_short	Fibrilación auricular focal. Características clínicas y resultado de la ablación con radiofrecuencia
title_full	Fibrilación auricular focal. Características clínicas y resultado de la ablación con radiofrecuencia
title_fullStr	Fibrilación auricular focal. Características clínicas y resultado de la ablación con radiofrecuencia
title_full_unstemmed	Fibrilación auricular focal. Características clínicas y resultado de la ablación con radiofrecuencia
title_sort	fibrilación auricular focal. características clínicas y resultado de la ablación con radiofrecuencia
publisher	Sociedad Médica de Santiago
publishDate	2002
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872002000500002
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Fibrilación auricular focal. Características clínicas y resultado de la ablación con radiofrecuencia

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