Validation of a novel mapping system and utility for mapping complex atrial tachycardias

Validation of a novel mapping system and utility for mapping complex atrial tachycardias 1INTRODUCTIONSo‐called “panoramic atrial mapping” using basket catheters has gained a great deal of interest due to its potential for simultaneous mapping of the whole left atrium (LA). This has formed the foundation of several mapping systems developed with the aim to identify drivers in atrial fibrillation (AF). These technologies have had some reported success.A novel‐mapping system (CARTOFINDER) using the CARTO platform (Biosense Webster, Inc, Diamond Bar, CA, USA) has been developed to map potential drivers in AF through identifying repetitive activation patterns that are either focal or reentrant. To achieve panoramic mapping, the system uses a 64‐pole‐basket catheter to acquire 30 seconds of unipolar signals through CARTO. Processing of these signals using CARTOFINDER results in wavefront propagation maps in an open format where location points and electrograms can be scrutinized. There are little data published on the use of this mapping system. Prior to being used in AF, arguably the system ought to be independently validated in terms of its ability to determine focal sources and demonstrate wavefront propagation, and perhaps also to map atrial tachycardias (ATs) with complex wavefront patterns in scarred atria. Indeed, mapping complex AT in a diseased substrate can be difficult and time consuming and may http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Cardiovascular Electrophysiology Wiley

Validation of a novel mapping system and utility for mapping complex atrial tachycardias