Conclusion
OT and velocity map offer significant advantages in the management of challenging arrhythmias, and can potentially improve the efficacy of the treatment of some arrhythmias such as atrial flutter and AF.
Introduction
Electroanatomic mappings have assumed a more important role in the treatment of arrhythmias. The technology that underlies their mechanism is based on anatomical reconstruction and in some cases on the analysis of the alterations of the substrate that characterize different arrhythmias. Recently there is a great interest in the modalities of atrial activation and how its modifications can lead to the onset of arrhythmias [1]. Other mapping system has introduced the coherent mapping module that integrates local activation time (LAT) information with vector data that allow the identification of slowing conduction areas in macroreentrant arrhythmias [2]. New Ensite OT combine three unipolar and two bipolar signals and provides maximum voltage regardless of electrode-wavefront orientation, local wavefront activation direction and local measurements of wave speed [3,4]. Using this configuration is it possible to create a wave speed map: a color map coded by conduction velocity value giving value of how fast wavefront is moving. Clinical applications of this new technology are not known. The aim of this report is to describe different kind of possible application of this new technology.
Wolff-Parkinson White syndrome