Document Detail

An electrocardiogram marker to detect paroxysmal atrial fibrillation.
MedLine Citation:
PMID:  17276448     Owner:  NLM     Status:  MEDLINE    
An electrocardiogram marker to detect patients who have paroxysmal atrial fibrillation (PAF) is reported. The data set of ECG records made available by PhysioNet for Cardiology Challenge 2001 was used. The method uses a filtered time series with a frequency range between 3 and 9 Hz obtained from the electrocardiogram record. Typically, frequencies observed when a patient is in atrial fibrillation and atrial flutter is within this frequency range. Filtering was done using wavelets. Thereafter, the temporal properties of this filtered time series are studied. The temporal properties studied are the standard deviation, standard deviation of successive differences, and the length of the ellipse in the Poincare plot. The results indicate that these temporal properties of patients with PAF are depressed compared to the healthy group. A marker based on these temporal properties shows promise in detecting PAF when patients are in normal sinus rhythm. Results also show that the values for these temporal properties for a patient with PAF show little variation with time, and its measure is not dependent on the time of occurrence of a PAF episode.
Ranjit Arulnayagam Thuraisingham
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Publication Detail:
Type:  Journal Article     Date:  2007-02-05
Journal Detail:
Title:  Journal of electrocardiology     Volume:  40     ISSN:  1532-8430     ISO Abbreviation:  J Electrocardiol     Publication Date:  2007 Oct 
Date Detail:
Created Date:  2007-06-29     Completed Date:  2007-07-25     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0153605     Medline TA:  J Electrocardiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  344-7     Citation Subset:  IM    
Eastwood, NSW, Australia. <>
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MeSH Terms
Atrial Fibrillation / diagnosis*
Diagnosis, Computer-Assisted / methods*
Electrocardiography / methods*
Reproducibility of Results
Sensitivity and Specificity

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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