Fusion during entrainment at the cavotricuspid isthmus: What is the mechanism?

A 91-year-old man with persistent atrial flutter (AFL) underwent catheter ablation. The 12-lead ECG was compatible with a counterclockwise cavotricuspid isthmus (CTI)-dependent typical AFL.

Source: Heart Rhythm - April 27, 2018 Category: Cardiology Authors: Mark J. Shen, Bradley P. Knight, Susan S. Kim Tags: Unknown of the Month Source Type: research