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