Características clínicas y electrofisiológicas de pacientes fulgurados con radiofrecuencia por taquicardia por reentrada nodal típica

AV nodal reentry tachycardia (AVNRT) is the most common cause of paroxysmal supraventricular tachycardia. Radiofrequency ablation is today the treatment of choice. Aim: To report our experience in patients who underwent slow pathway ablation. Patients and methods: Fifty six consecutive patients (68%...

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Autores principales:	Charme V,Gustavo, Seguel R,Marianella, González A,Rolando
Lenguaje:	Spanish / Castilian
Publicado:	Sociedad Médica de Santiago 2003
Materias:	Arrhythmia Catheter ablation Isoproterenol Tachycardia atrioventricular nodal reentry
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872003001100002
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spelling	oai:scielo:S0034-988720030011000022004-01-27Características clínicas y electrofisiológicas de pacientes fulgurados con radiofrecuencia por taquicardia por reentrada nodal típicaCharme V,GustavoSeguel R,MarianellaGonzález A,Rolando Arrhythmia Catheter ablation Isoproterenol Tachycardia atrioventricular nodal reentry AV nodal reentry tachycardia (AVNRT) is the most common cause of paroxysmal supraventricular tachycardia. Radiofrequency ablation is today the treatment of choice. Aim: To report our experience in patients who underwent slow pathway ablation. Patients and methods: Fifty six consecutive patients (68% female, mean age 43 years old) that underwent slow pathway ablation are reported. Results: Sixty four percent of patients had failed drug therapy. During electrophysiological study, AVNRT was induced in 55 patients. Isoproterenol was required for induction in 36%. Programmed atrial stimulation revealed dual AV nodal pathway in only 64% of the patients; 29% had AVNRT with single nodal curve and 7% only prolongation of AH interval. The slow pathway was ablated in 55 patients. One patient refused ablation because of risk of AV block. All patients had immediate success post ablation. Sixty four percent of patients persisted with partial evidence of dual curve manifested by sudden AH prolongation and single echoes. Conclusions: Isoproterenol is essential for ruling out AVNRT, since 29% of the patients had baseline single nodal curve and in only 64% was tachycardia induced without isoproterenol. Persistence of residual dual physiology does not rule out the success of ablation (Rev Méd Chile 2003; 131: 1237-42)info:eu-repo/semantics/openAccessSociedad Médica de SantiagoRevista médica de Chile v.131 n.11 20032003-11-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872003001100002es10.4067/S0034-98872003001100002
institution	Scielo Chile
collection	Scielo Chile
language	Spanish / Castilian
topic	Arrhythmia Catheter ablation Isoproterenol Tachycardia atrioventricular nodal reentry
spellingShingle	Arrhythmia Catheter ablation Isoproterenol Tachycardia atrioventricular nodal reentry Charme V,Gustavo Seguel R,Marianella González A,Rolando Características clínicas y electrofisiológicas de pacientes fulgurados con radiofrecuencia por taquicardia por reentrada nodal típica
description	AV nodal reentry tachycardia (AVNRT) is the most common cause of paroxysmal supraventricular tachycardia. Radiofrequency ablation is today the treatment of choice. Aim: To report our experience in patients who underwent slow pathway ablation. Patients and methods: Fifty six consecutive patients (68% female, mean age 43 years old) that underwent slow pathway ablation are reported. Results: Sixty four percent of patients had failed drug therapy. During electrophysiological study, AVNRT was induced in 55 patients. Isoproterenol was required for induction in 36%. Programmed atrial stimulation revealed dual AV nodal pathway in only 64% of the patients; 29% had AVNRT with single nodal curve and 7% only prolongation of AH interval. The slow pathway was ablated in 55 patients. One patient refused ablation because of risk of AV block. All patients had immediate success post ablation. Sixty four percent of patients persisted with partial evidence of dual curve manifested by sudden AH prolongation and single echoes. Conclusions: Isoproterenol is essential for ruling out AVNRT, since 29% of the patients had baseline single nodal curve and in only 64% was tachycardia induced without isoproterenol. Persistence of residual dual physiology does not rule out the success of ablation (Rev Méd Chile 2003; 131: 1237-42)
author	Charme V,Gustavo Seguel R,Marianella González A,Rolando
author_facet	Charme V,Gustavo Seguel R,Marianella González A,Rolando
author_sort	Charme V,Gustavo
title	Características clínicas y electrofisiológicas de pacientes fulgurados con radiofrecuencia por taquicardia por reentrada nodal típica
title_short	Características clínicas y electrofisiológicas de pacientes fulgurados con radiofrecuencia por taquicardia por reentrada nodal típica
title_full	Características clínicas y electrofisiológicas de pacientes fulgurados con radiofrecuencia por taquicardia por reentrada nodal típica
title_fullStr	Características clínicas y electrofisiológicas de pacientes fulgurados con radiofrecuencia por taquicardia por reentrada nodal típica
title_full_unstemmed	Características clínicas y electrofisiológicas de pacientes fulgurados con radiofrecuencia por taquicardia por reentrada nodal típica
title_sort	características clínicas y electrofisiológicas de pacientes fulgurados con radiofrecuencia por taquicardia por reentrada nodal típica
publisher	Sociedad Médica de Santiago
publishDate	2003
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872003001100002
work_keys_str_mv	AT charmevgustavo caracteristicasclinicasyelectrofisiologicasdepacientesfulguradosconradiofrecuenciaportaquicardiaporreentradanodaltipica AT seguelrmarianella caracteristicasclinicasyelectrofisiologicasdepacientesfulguradosconradiofrecuenciaportaquicardiaporreentradanodaltipica AT gonzalezarolando caracteristicasclinicasyelectrofisiologicasdepacientesfulguradosconradiofrecuenciaportaquicardiaporreentradanodaltipica
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Características clínicas y electrofisiológicas de pacientes fulgurados con radiofrecuencia por taquicardia por reentrada nodal típica

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