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Frequency analysis of atrial fibrillation from surface electrocardiograms

Husser, Daniela; Stridh, Martin LU ; Sörnmo, Leif LU ; Olsson, Bertil LU and Bollmann, Andreas LU (2004) In Indian Pacing and Electrophysiology Journal 4(3). p.122-136
Abstract
Atrial fibrillation (AF) is the most common arrhythmia encountered in clinical practice. Neither the natural history of AF nor its response to therapy are sufficiently predictable by clinical and echocardiographic parameters. Atrial fibrillatory frequency (or rate) can reliably be assessed from the surface electrocardiogram (ECG) using digital signal processing (filtering, subtraction of averaged QRST complexes, and power spectral analysis) and shows large inter-individual variability. This measurement correlates well with intraatrial cycle length, a parameter which appears to have primary importance in AF domestication and response to therapy. AF with a low fibrillatory rate is more likely to terminate spontaneously, and responds better... (More)
Atrial fibrillation (AF) is the most common arrhythmia encountered in clinical practice. Neither the natural history of AF nor its response to therapy are sufficiently predictable by clinical and echocardiographic parameters. Atrial fibrillatory frequency (or rate) can reliably be assessed from the surface electrocardiogram (ECG) using digital signal processing (filtering, subtraction of averaged QRST complexes, and power spectral analysis) and shows large inter-individual variability. This measurement correlates well with intraatrial cycle length, a parameter which appears to have primary importance in AF domestication and response to therapy. AF with a low fibrillatory rate is more likely to terminate spontaneously, and responds better to antiarrhythmic drugs or cardioversion while high rate AF is more often persistent and refractory to therapy. In conclusion, frequency analysis of AF seems to be useful for non-invasive assessment of electrical remodeling in AF and may subsequently (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Indian Pacing and Electrophysiology Journal
volume
4
issue
3
pages
122 - 136
publisher
Indian Pacing and Electrophysiology Group
ISSN
0972-6292
language
English
LU publication?
yes
id
e190c058-7690-47d4-b3f5-3ad05053e613 (old id 619850)
date added to LUP
2007-11-22 14:58:32
date last changed
2016-04-16 06:31:56
@article{e190c058-7690-47d4-b3f5-3ad05053e613,
  abstract     = {Atrial fibrillation (AF) is the most common arrhythmia encountered in clinical practice. Neither the natural history of AF nor its response to therapy are sufficiently predictable by clinical and echocardiographic parameters. Atrial fibrillatory frequency (or rate) can reliably be assessed from the surface electrocardiogram (ECG) using digital signal processing (filtering, subtraction of averaged QRST complexes, and power spectral analysis) and shows large inter-individual variability. This measurement correlates well with intraatrial cycle length, a parameter which appears to have primary importance in AF domestication and response to therapy. AF with a low fibrillatory rate is more likely to terminate spontaneously, and responds better to antiarrhythmic drugs or cardioversion while high rate AF is more often persistent and refractory to therapy. In conclusion, frequency analysis of AF seems to be useful for non-invasive assessment of electrical remodeling in AF and may subsequently},
  author       = {Husser, Daniela and Stridh, Martin and Sörnmo, Leif and Olsson, Bertil and Bollmann, Andreas},
  issn         = {0972-6292},
  language     = {eng},
  number       = {3},
  pages        = {122--136},
  publisher    = {Indian Pacing and Electrophysiology Group},
  series       = {Indian Pacing and Electrophysiology Journal},
  title        = {Frequency analysis of atrial fibrillation from surface electrocardiograms},
  volume       = {4},
  year         = {2004},
}