Medical University of South Carolina

Prisma Health-upstate

Health Sciences Center, LLC

Donald Rubenstein, M.d., Ph.d. Prisma Health - Upstate

Donald S Rubenstein

Cardiac mapping catheters and methods for using the catheters are described. The catheter can detect the presence, direction and/or source of a depolarization wave front associated with cardiac arrhythmia. A mapping catheter includes a plurality of bipolar electrode pairs in which the members of each pair are opposed to one another across a perimeter, for instance in a circular pattern (compass mode). The spaced arrangement of the electrodes can be utilized to identify directional paths of moving electric fields or wave fronts in any direction passing across the endocardial surface. Double potential (DP) recordings in compass mode can provide a regional assessment for the existence of rotational activity. Simultaneous DP recordings in compass mode, narrow-adjacent bipolar, and unipolar recording provide an accurate assessment of the time, location, and path that a rotational mechanism breaches a perimeter of electrodes. Accurate time, location, and path of perimeter breaches can be used to electrically track rotational mechanisms during atrial fibrillation.

Methods for tracking rotational activation sites in atrial fibrillation

Cardiac mapping catheters and methods for using the catheters are described. The catheter can detect the presence, direction and/or source of a depolarization wave front associated with cardiac arrhythmia. A mapping catheter includes a plurality of bipolar electrode pairs in which the members of each pair are opposed to one another across a perimeter, for instance in a circular pattern. The spaced arrangement of the electrodes can be utilized to identify directional paths of moving electric fields or wave fronts in any direction passing across the endocardial surface. The catheters can be used to identify locations and types of triggers and/or drivers of cardiac arrhythmia including rotors, ectopic trigger foci and/or to delineate reentrant pathways.

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Greenville, SC, United States of America

Donald S Rubenstein