open access

Vol 64, No 9 (2006)
Other
Published online: 2006-10-11
Submitted: 2012-12-28
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Invasive electrophysiology
Application of spectral frequency analysis in atrial fibrillation mechanism assessment

Piotr Urbanek, Paweł Kuklik, Łukasz Szumowski, Paweł Derejko, Roman Kępski, Robert Bodalski, Ewa Szufladowicz, Andrzej Przybylski, Michał Orczykowski, Joanna Zakrzewska, Jan Żebrowski, Franciszek Walczak
Kardiol Pol 2006;64(9):1021-1025.

open access

Vol 64, No 9 (2006)
Other
Published online: 2006-10-11
Submitted: 2012-12-28

Abstract

Recent studies have demonstrated spatio-temporal organisation in atrial fibrillation (AF), with a highest dominant frequencies (DF) at pulmonary veins ostia (PVo). We present a case of 58-year-old woman with AF evaluated by spectral frequency analysis. Simultaneous recordings at each veno-atrial junction and coronary sinus were obtained. Sequential fast Fourier transforms (FFT) of digitalized signals were performed. FFT profiles were analysed to determine DF. Low DF recorded at right inferior PVo suggested no contribution to AF process. Ablation of high DF PVo and low DF SVC with nonuniform anisotropic conduction resulted in AF termination and good clinical outcome in 1-year follow-up.

Abstract

Recent studies have demonstrated spatio-temporal organisation in atrial fibrillation (AF), with a highest dominant frequencies (DF) at pulmonary veins ostia (PVo). We present a case of 58-year-old woman with AF evaluated by spectral frequency analysis. Simultaneous recordings at each veno-atrial junction and coronary sinus were obtained. Sequential fast Fourier transforms (FFT) of digitalized signals were performed. FFT profiles were analysed to determine DF. Low DF recorded at right inferior PVo suggested no contribution to AF process. Ablation of high DF PVo and low DF SVC with nonuniform anisotropic conduction resulted in AF termination and good clinical outcome in 1-year follow-up.
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Keywords

atrial fibrillation; ablation; fast Fourier transform

About this article
Title

Invasive electrophysiology
Application of spectral frequency analysis in atrial fibrillation mechanism assessment

Journal

Kardiologia Polska (Polish Heart Journal)

Issue

Vol 64, No 9 (2006)

Pages

1021-1025

Published online

2006-10-11

Bibliographic record

Kardiol Pol 2006;64(9):1021-1025.

Keywords

atrial fibrillation
ablation
fast Fourier transform

Authors

Piotr Urbanek
Paweł Kuklik
Łukasz Szumowski
Paweł Derejko
Roman Kępski
Robert Bodalski
Ewa Szufladowicz
Andrzej Przybylski
Michał Orczykowski
Joanna Zakrzewska
Jan Żebrowski
Franciszek Walczak

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