Optimal Surgical Ablation of Atrial Tachyarrhythmias During Correction of XXXX .

@entity1 @entity64 @entity75 @entity591 @entity955 @entity4924
BACKGROUND: @entity4924 ( @entity4924 ) is commonly associated with @entity955 ( @entity955 ), which adversely affects outcome. Surgical ablation of @entity955 during surgery for @entity4924 has been shown to be effective, but the optimal lesion set remains unknown. METHODS: Between 1995 and 2010, 86 @entity1 had corrective surgery for @entity4924 and concomitant maze procedure for associated @entity955 . Median age at operation was 40 years (range, 1 to 72 years), and 49 @entity1 (60%) were male. Preoperative @entity955 was paroxysmal in 43 @entity1 (50%). All @entity1 who had diagnosis of or treatment for accessory pathways and reentrant @entity591 were excluded from this analysis. RESULTS: All @entity1 underwent tricuspid valve surgery for @entity4924 and concomitant maze procedure, including right-sided maze (RSM) in 62 @entity1 (72%) and biatrial maze (BAM) in 24 @entity1 (28%). Early mortality occurred in 3 @entity1 (3.5%). During median follow-up of 52 months (range, 3 months to 17 years), overall freedom from @entity955 without antiarrhythmic medications was 79% (RSM, 80% versus BAM, 76%; p  = 0.97). Although there was no difference in rhythm outcome between RSM and BAM for @entity1 with paroxysmal @entity955 (p  = 0.08), there was a trend toward higher freedom from AF without antiarrhythmic medications in @entity1 with persistent @entity955 for BAM (86%) versus RSM (71%; p  = 0.053). Overall, there were no late @entity64 , and 84% were free from sodium warfarin anticoagulation. CONCLUSIONS: Overall, surgical ablation of preoperative @entity955 is effective in @entity1 undergoing surgery for @entity4924 . Although rhythm outcome of RSM and BAM did not differ in @entity1 with preoperative paroxysmal @entity955 , those with persistent or permanent @entity955 may benefit from a @entity75 set.
