Macroreentrant and Localized Reentrant Tachycardias Involving the Marshall Bundle After LA Ablation for Persistent AF: Video

Video shows peri-mitral flutter with endocardial block and wavefront entering epicardial­ly through the vein of Marshall to break through the coronary sinus into the posterior left atrium. See full article by Venkat N. Tholakanahalli, MD, FHRS and colleagues in our February issue!