Isolation of the pulmonary veins in patients with permanent atrial fibrillation secondary to mitral valve disease.
Arq Bras Cardiol
; 82(4): 337-45, 2004 Apr.
Article
em En, Pt
| MEDLINE
| ID: mdl-15320554
OBJECTIVE: To assess the efficacy of surgical isolation of the pulmonary veins for re-establishing sinus rhythm in patients with atrial fibrillation secondary to mitral valve disease. METHODS: Thirty-three (67% were women) patients with permanent atrial fibrillation and indication for surgical correction of the mitral valve underwent surgical isolation of the pulmonary veins. Their mean age was 56.3+/-10 years, preoperative NYHA functional class was 3.2+/-0.6, left atrial size was 5.5+/-0.9 cm, and ejection fraction was 61.3+/-13%. The surgical technique consisted of a circumferential incision surrounding the 4 pulmonary veins, excision of the left atrial appendage, and a perpendicular incision originating in the inferior margin of the circumferential incision isolating the pulmonary veins down to the mitral valve. Early arrhythmias were aggressively treated with cardioversion. RESULTS: The mean follow-up was 23.9+/-17 months, and 3 patients died in the postoperative period. Ten patients required electrical cardioversion in the postoperative period; 87% had sinus rhythm in the last medical visit, and 33% were using amiodarone. CONCLUSION: Isolation of the pulmonary veins associated with mitral valve surgery is an effective and safe technique for maintaining sinus rhythm in patients with permanent atrial fibrillation.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Veias Pulmonares
/
Fibrilação Atrial
/
Insuficiência da Valva Mitral
Tipo de estudo:
Etiology_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
/
Pt
Revista:
Arq Bras Cardiol
Ano de publicação:
2004
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Brasil