Características clínicas úteis para seleçäo do candidato ideal para mapeamento e ablaçäo de fibrilaçäo atrial / Useful clinical features for the selection of ideal patients with atrial fibrillation for mapping and catheter ablation
Arq. bras. cardiol
;
78(1): 1-16, Jan. 2002. ilus, tab
Artigo
em Português, Inglês
| LILACS
| ID: lil-301414
ABSTRACT
OBJECTIVE:
To identify useful clinical characteristics for selecting patients eligible for mapping and ablation of atrial fibrillation.METHODS:
We studied 9 patients with atrial fibrillation, without structural heart disease, associated with 1) antiarrhythmic drugs, 2) symptoms of low cardiac output, and 3) intention to treat. Seven patients had paroxysmal atrial fibrillation and 2 had recurrent atrial fibrillation.RESULTS:
In the 6 patients who underwent mapping (all had paroxysmal atrial fibrillation), catheter ablation was successfully carried out in superior pulmonary veins in 5 patients (the first 3 in the left superior pulmonary vein and the last 2 in the right superior pulmonary vein). One patient experienced a recurrence of atrial fibrillation after 10 days. We observed that patients who had short episodes of atrial fibrillation on 24-hour Holter monitoring before the procedure were those in whom mapping the focus of tachycardia was possible. Tachycardia was successfully suppressed in 4 of 6 patients. The cause of failure was due to the impossibility of maintaining sinus rhythm long enough for efficient mapping.CONCLUSION:
Patients experiencing short episodes of atrial fibrillation during 24-hour Holter monitoring were the most eligible for mapping and ablation, with a final success rate of 66 percent, versus the global success rate of 44 percent. Patients with persistent atrial fibrillation were not good candidates for focal ablation
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Fibrilação Atrial
/
Ablação por Cateter
/
Seleção de Pacientes
/
Técnicas Eletrofisiológicas Cardíacas
Tipo de estudo:
Estudo prognóstico
Limite:
Adulto
/
Aged80
/
Humanos
/
Masculino
Idioma:
Inglês
/
Português
Revista:
Arq. bras. cardiol
Assunto da revista:
Cardiologia
Ano de publicação:
2002
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Hospital Angelina Caron/BR
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