Electrogram morphology recurrence patterns during atrial fibrillation.

ABSTRACT:

Background

Traditional mapping of atrial fibrillation (AF) is limited by changing electrogram morphologies and variable cycle lengths.

Objective

We tested the hypothesis that morphology recurrence plot analysis would identify sites of stable and repeatable electrogram morphology patterns.

Methods

AF electrograms recorded from left atrial (LA) and right atrial (RA) sites in 19 patients (10 men; mean age 59 ± 10 years) before AF ablation were analyzed. Morphology recurrence plots for each electrogram recording were created by cross-correlation of each automatically detected activation with every other activation in the recording. A recurrence percentage, the percentage of the most common morphology, and the mean cycle length of activations with the most recurrent morpho

SUBMITTER: Ng J 

PROVIDER: S-EPMC4252253 | biostudies-literature | 2014 Nov

REPOSITORIES: biostudies-literature