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Current Cardiology Reviews

Editor-in-Chief

ISSN (Print): 1573-403X
ISSN (Online): 1875-6557

Mapping Strategies in Focal Atrial Tachycardias Demonstrating Early Septal Activation: Distinguishing Left From Right

Author(s): Vassil B. Traykov

Volume 11, Issue 2, 2015

Page: [111 - 117] Pages: 7

DOI: 10.2174/1573403X10666141013121428

Price: $65

Abstract

Determining the chamber of origin of focal atrial tachycardias (FATs) arising at or close to the septum might require biatrial mapping. This review focuses on the available tools and methods used to distinguish right atrial from left atrial origin before left atrial access is obtained. These include analysis of P wave morphology, assessing the timing of right atrial septal activation, the sequence of right atrial and/or biatrial activation and analysis of earliest electrogram morphology. The electroanatomical properties of the interatrial septum and coronary sinus that provide the basis for the above mentioned tools have also been briefly described.

Keywords: Focal atrial tachycardias, septal, electrogram analysis, coronary sinus musculature, biatrial mapping.

Graphical Abstract
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