Long-term outcome of modified maze procedure combined with mitral valve surgery: Analysis of outcomes according to type of mitral valve surgery

被引:29
作者
Kim, Joon Bum [1 ]
Yun, Tae Jin [1 ]
Chung, Cheol Hyun [1 ]
Choo, Suk Jung [1 ]
Song, Hyun [1 ]
Lee, Jae Won [1 ]
机构
[1] Univ Ulsan, Asan Med Ctr, Coll Med, Dept Thorac & Cardiovasc Surg, Seoul 138736, South Korea
关键词
ATRIAL-FIBRILLATION SURGERY; DISEASE; REPLACEMENT; RESTORATION; CONCOMITANT; PREDICTORS; PATHOLOGY; EFFICACY; IMPACT; TRIAL;
D O I
10.1016/j.jtcvs.2009.07.002
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Objective: Efficacy of the maze procedure for atrial fibrillation associated with advanced mitral disease not amenable to repair has not been determined. This study investigated whether type of mitral surgery affects maze outcome. Methods: From January 1999 to January 2007, a total of 435 patients underwent the maze procedure and concomitant mitral operation. Of these, 226 underwent mitral repair and 209 underwent mitral replacement. Results: Median follow-up was 40.6 months (0.4-111.3 months), with 25 deaths and 6 strokes. Nineteen patients did not regain normal sinus rhythm. There were no significant intergroup differences in survival, stroke incidence, or sinus rhythm restoration rate. Among 427 early survivors, 64 had late atrial fibrillation recurrence. Five-year atrial fibrillation-free rates were 80.9% +/- 3.7% in the repair group and 77.3% +/- 4.1% in the replacement group (P = .099). By multivariate analysis, age at surgery older than 60 years (P = .045), fine atrial fibrillation wave pattern (P = .033), and preoperative left atrial dimension greater than 60 mm (P = .019) were independent risk factors for atrial fibrillation recurrence, whereas type of mitral surgery was not (P = .573). Although transmitral A-wave prevalence did not differ significantly between groups beyond the early postoperative period, A-wave velocity was faster in the repair group through the entire postoperative period (P < .001). Conclusions: Maze outcomes were acceptable regardless of type of mitral surgery. Late atrial fibrillation recurrence was mainly affected by age, unfavorable electrocardiographic characteristics of atrial fibrillation, and larger preoperative left atrial size. (J Thorac Cardiovasc Surg 2010; 139: 111-7)
引用
收藏
页码:111 / 117
页数:7
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