Use of fast fourier transform analysis of atrial electrograms for rapid characterization of atrial activation-implications for delineating possible mechanisms of atrial tachyarrhythmias

Journal of Cardiovascular Electrophysiology
Kyungmoo RyuA Waldo

Abstract

Different analysis techniques have been developed to help understand and characterize the mechanisms responsible for atrial arrhythmias. We tested the hypothesis that Fast Fourier Transform (FFT) analysis of recorded atrial electrograms (AEGs) will rapidly and accurately identify regular and irregular patterns of atrial activation, and, thereby, may provide evidence suggestive of underlying mechanisms of atrial tachyarrhythmias. During induced atrial tachyarrhythmias in both the canine sterile pericarditis model and canine rapid ventricular pacing-induced congestive heart failure model; 380-404 AEGs were recorded simultaneously from epicardial electrodes on both atria. From AEGs, atrial activation sequences were determined during atrial flutter (AFL), focal atrial tachycardia (AT), and atrial fibrillation (AF). Four-second recording segments of each AEG were subjected to FFT analysis. Frequencies found during FFT analyses in all studies precisely corresponded to the cycle lengths of the AEGs. In AFL and AT, one dominant frequency peak was found throughout both atria. In AF due to multiple unstable reentry circuits, multiple and broad frequency peaks were found in both atria. In AF due to a stable rapid rhythm (driver) in the le...Continue Reading

References

Oct 1, 1986·Journal of the American College of Cardiology·P L PagéA L Waldo
Feb 1, 1985·Computers and Biomedical Research, an International Journal·O GovrinS Abboud
Apr 28, 1999·IEEE Transactions on Bio-medical Engineering·H J SihJ E Olgin
Mar 15, 2001·American Journal of Physiology. Heart and Circulatory Physiology·K MatsuoA L Waldo
Jun 5, 2003·Journal of Cardiovascular Electrophysiology·Bruce S StamblerColette M Guiraudon
Oct 3, 2003·Journal of Cardiovascular Electrophysiology·Guilherme FenelonBruce S Stambler
Feb 14, 2004·American Journal of Physiology. Heart and Circulatory Physiology·Thomas H EverettJeffrey E Olgin
Nov 3, 2004·Circulation·Jayakumar SahadevanAlbert L Waldo
Apr 27, 2005·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Prashanthan SandersMichel Haïssaguerre

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Citations

Nov 1, 2012·Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology·Catalina TobónJavier Saiz
Aug 6, 2009·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Albert M KimThomas H Everett
Dec 17, 2008·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Hanh M BuiAlbert L Waldo
Jun 7, 2008·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Sharon ZlochiverOmer Berenfeld
Sep 29, 2007·Journal of Cardiovascular Electrophysiology·Robert N GoldsteinAlbert L Waldo
Feb 28, 2008·Journal of Cardiovascular Electrophysiology·Martin K StilesPrashanthan Sanders
Nov 13, 2012·Journal of Cardiovascular Electrophysiology·Seungyup LeeJayakumar Sahadevan
Jan 5, 2014·Journal of Cardiovascular Electrophysiology·Julian W E JarmanNicholas S Peters
Oct 21, 2009·Circulation. Arrhythmia and Electrophysiology·Arif ElvanJacques M T de Bakker
Apr 17, 2007·American Journal of Physiology. Heart and Circulatory Physiology·Kyungmoo RyuAlbert L Waldo
Dec 13, 2019·Frontiers in Pharmacology·Catalina TobónSami Noujaim

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