To the Editor — Understanding the complex anatomy of the Marshall bundle might improve the ablation efficacy

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

Source: Heart Rhythm - November 6, 2019 Category: Cardiology Authors: Songwen Chen, Genqing Zhou, Xiaofeng Lu, Yong Wei, Shaowen Liu Tags: Letter to the editor Source Type: research