Usage of a new mapping algorithm to detect possible critical substrate for continuity of atrial fibrillation: fractionation mapping in preliminary experience

Fractionation mapping software to map ganglionated plexus sites during sinus rhythm

“…Fragmented EGM‐based strategy was found to associated with shorter procedure and fluoroscopy times with an identical success rate in preventing prodromal symptoms. Fractionation mapping software was previously used to detect localization of GPs and critical substrate for continuity of AF by our group 8,10 . Fragmented areas were encoded with white color during AF and were detected mainly in suitable sites for GP localization.…”

“…Fractionation mapping software was previously used to detect localization of GPs and critical substrate for continuity of AF by our group. 8,10 Fragmented areas were encoded with white color during AF and were detected mainly in suitable sites for GP localization.…”

“…Figure S1 and discussed in our previous work. 10 The map color scale was set to color areas at or above the fractionation threshold of 2 as white (suggestive of fractionated EGM; Figures 1, 2, S1, and S2).…”

“…Map parameters were standardized at internal and external projections of 7 mm, interpolation of 7 mm, and low‐voltage identification of 0.3 mV. Fractionation map was created using combinations of width (5 ms), refractory time (30 ms), roving sensitivity (0.1 mV), and fractionation threshold (2), the definitions of which are explained in Figure S1 and discussed in our previous work 10 . The map color scale was set to color areas at or above the fractionation threshold of 2 as white (suggestive of fractionated EGM; Figures 1, 2, S1, and S2).…”

Fractionated Mapping-Guided Ablation Strategy in Patients with Long-Standing Persistent Atrial Fibrillation: a Case Series

“…However, ablation at sites demonstrating fragmentation did not always result in prolongation of AF cycle length or arrhythmia termination, which indicates that some fractionated electrograms may be active drivers, while others are likely passive effect of fibrillatory conduction. As a newly investigated tool, the potential usage of fractionation mapping of the software EnSite Precision (Abbott) mapping system was firstly tested to detect critical substrate during AF by our group 3,4 .…”