Surgical outcomes of modified-maze procedures in adults with atrial septal defect
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We examined the outcome of modified-maze procedures reflecting a single-center strategy in the treatment of atrial fibrillation (AF) associated with atrial septal defect (ASD) in adults.
A retrospective chart review was performed for 29 patients who underwent surgical ASD closure and 2 types of maze procedures (full and simplified maze procedures) for AF. The outcome related to the each procedure was examined. A Cox proportional hazards analysis was performed to assess the independent predictors of AF and atrial tachycardia (AT) recurrence.
The rates of freedom from AF and AT recurrence at 1 and 4 years were 86.6% and 72.2% in the full maze group and 78.5% and 62.8% in the simplified maze group, respectively (p = 0.70). The only risk factor for recurrence was the age at the time of surgery. A receiver operating characteristic curve analysis gave an optimum cut-off value of 58 years of age for predicting recurrence within 2 years (58.4% for ≥ 58 years versus 5.9% for < 58 years, p = 0.003).
Simplification of the maze procedure was not associated with AF or AT recurrence. The age at the time of surgery might be a clinical predictor of success or failure in adult patients.
KeywordsMaze procedure Atrial septal defect Radiofrequency ablation
Compliance with ethical standards
Conflict of interest
Shun-ichiro Sakamoto and the other co-authors have no conflicts of interest.
- 8.Damiano RJ Jr, Badhwar V, Acker MA, Veeragandham RS, Kress DC, Robertson JO, et al. The CURE-AF trial: a prospective, multicenter trial of irrigated radiofrequency ablation for the treatment of persistent atrial fibrillation during concomitant cardiac surgery. Heart Rhythm. 2014;11:39–45.CrossRefGoogle Scholar
- 27.Feinberg MS1, Waggoner AD, Kater KM, Cox JL, Lindsay BD, Pérez JE. Restoration of atrial function after the maze procedure for patients with atrial fibrillation. Assessment by Doppler echocardiography. Circulation. 1994;90:285–92.Google Scholar