Understanding the complex anatomy of Marshall bundle might improve the ablation efficacy

We read with great interest the Vlachos and colleagues ’ article, in which they reported that recurrences of Marshall bundle (MB) conduction were mostly observed after radiofrequency ablation (49%) compared to ethanol infusion (11%).1 Undoubtedly, MB, an epicardial structure, is challenging for clinical practice due to its complex anatomy.2 In our pre vious study2, with a stepwise approach to elaborately mapping large areas of lateral left atrium (LA) and/or coronary sinus (CS), the MB connections could be successfully eliminated by radiofrequency ablation from endocardial and/or within CS in 96.7% (59/61) patients.

Source: Heart Rhythm - November 6, 2019 Category: Cardiology Authors: Songwen Chcen, Genqing zhou, Xiaofeng Lu, Yong Wei, Shaowen Liu Source Type: research