Isolation of the pulmonary veins in patients with permanent atrial fibrillation secondary to mitral valve disease

Autor: Gustavo G, Lima, Renato A K, Kalil, Tiago L L, Leiria, Gustavo F, Vanni, Marcelo H, Miglioransa, Daniel L, Faria-Corrêa, Domingos, Hatem, Rogério, Abrahão, João R, Sant'Anna, Paulo, Prates, Ivo A, Nesralla
Rok vydání: 2004
Předmět:
Zdroj: Arquivos brasileiros de cardiologia. 82(4)
ISSN: 0066-782X
Popis: 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.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.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.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.
Databáze: OpenAIRE