Catheter ablation of accessory pathways, atrioventricular nodal reentrant tachycardia, and the atrioventricular junction: final results of a prospective, multicenter clinical trial. The Atakr Multicenter Investigators Group.
Circulation
; 99(2): 262-70, 1999 Jan 19.
Article
em En
| MEDLINE
| ID: mdl-9892593
ABSTRACT
BACKGROUND:
The purpose of this study was to evaluate the safety and efficacy of a temperature-controlled radiofrequency catheter ablation system. METHODS ANDRESULTS:
The patient population included 1050 patients who had undergone ablation of atrioventricular nodal reentrant tachycardia (AVNRT), an accessory pathway (AP), or the atrioventricular junction (AVJ). Ablation was successful in 996 patients. The probability of success was highest among patients who had undergone ablation of the AVJ, lowest in patients who had undergone ablation of an AP, and in between for patients who had undergone ablation of AVNRT. A major complication occurred in 32 patients. Four variables predicted ablation success (AVJ, AVNRT, or left free wall AP ablation and an experienced center). Four factors predicted arrhythmia recurrence (right free wall, posteroseptal, septal, and multiple APs). Two variables predicted development of a complication (structural heart disease and the presence of multiple targets), and 3 variables predicted an increased risk of death (heart disease, lower ejection fraction, and AVJ ablation).CONCLUSIONS:
These findings may serve as a guide to clinicians considering therapeutic options in patients who are candidates for ablation.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Nó Atrioventricular
/
Taquicardia por Reentrada no Nó Atrioventricular
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Ablação por Cateter
Tipo de estudo:
Clinical_trials
/
Etiology_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Adolescent
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Adult
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Aged
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Aged80
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Child
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Child, preschool
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Female
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Humans
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Infant
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Male
Idioma:
En
Revista:
Circulation
Ano de publicação:
1999
Tipo de documento:
Article
País de afiliação:
Estados Unidos