Frequency analysis of atrial fibrillation from surface electrocardiograms
Författare
Summary, in English
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
Publiceringsår
2004
Språk
Engelska
Sidor
122-136
Publikation/Tidskrift/Serie
Indian Pacing and Electrophysiology Journal
Volym
4
Issue
3
Fulltext
- Available as PDF - 303 kB
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Dokumenttyp
Artikel i tidskrift
Förlag
Indian Pacing and Electrophysiology Group
Ämne
- Cardiac and Cardiovascular Systems
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0972-6292