Palpitações persistentes após ablação por cateter com radiofreqüência / Persistence of Palpitations After Successful Radiofrequency Catheter Ablation
Arq. bras. cardiol
; 68(2): 103-106, Fev. 1997. ilus
Artigo
em Português
| LILACS
| ID: lil-320369
Biblioteca responsável:
BR1.1
RESUMO
PURPOSE:
The aim of this study was to determine prevalence and the underlying mechanism of persistent palpitations after successful radiofrequency ablation of reentrant nodal tachycardia and atrioventricular tachycardia.METHODS:
One hundred twenty consecutive patients (mean age of 36 +/- 16 years) who underwent radiofrequency catheter ablation of atrioventricular or reentrant nodal tachycardia constituted the analyzed group. Prevalence of palpitations was investigated during out-clinic visits and telephone interviews. Patients complaining of palpitations were divided in 2 groups 1) those in whom palpitations lasted more than 30 seconds, and 2) those in whom the paroxysms lasted < 30 seconds (group II). All patients underwent clinical evaluation, ECG and Holter monitoring. Transesophageal atrial pacing and electrophysiologic stimulation were carried out when judged necessary.RESULTS:
During a follow up period of 9 +/- 4 months, 52 patients complained of palpitations. In 31 group I patients, palpitations were related to ventricular and atrial premature beats as shown during Holter monitoring. In group II patients, eight had recurrence, five presented a new arrhythmia not recognized previously to the ablative procedure and two patients had their symptoms related to arrhythmias recognized before ablation but taken as asymptomatic. The mechanism of palpitations was not identified in six patients.CONCLUSION:
Palpitations may persist in 43of patients who undergo radiofrequency ablation to treat reentrant nodal tachycardia and atrioventricular tachycardia. Recurrence and treatment are more likely when palpitations last longer than 30 seconds.
Texto completo:
Disponível
Coleções:
Bases de dados internacionais
Base de dados:
LILACS
Assunto principal:
Arritmias Cardíacas
/
Taquicardia por Reentrada no Nó Atrioventricular
/
Ablação por Cateter
Tipo de estudo:
Estudo observacional
/
Estudo de prevalência
/
Estudo prognóstico
/
Fatores de risco
Limite:
Adolescente
/
Adulto
/
Idoso, 80 anos ou mais
/
Criança
/
Feminino
/
Humanos
/
Masculino
Idioma:
Português
Revista:
Arq. bras. cardiol
Assunto da revista:
Cardiologia
Ano de publicação:
1997
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Universidade de São Paulo/BR