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Left atrial conduction along the coronary sinus during ectopic atrial tachycardia and atrial fibrillation: a study using correlation function analysis.

Carlson, Jonas LU ; Santos, Susana; Platonov, Pyotr LU ; Kongstad Rasmussen, Ole LU ; Johansson, Rolf LU and Olsson, Bertil LU (2003) In Journal of Cardiovascular Electrophysiology 14(10 Suppl). p.148-153
Abstract
ntroduction: Correlation function analysis was applied to endocardial electrograms to investigate conduction patterns along the coronary sinus (CS) during sinus rhythm (SR) and atrial tachycardias. Methods and Results: Eighteen recordings were obtained from 14 patients suffering from supraventricular tachycardias. Five atrial fibrillation(AF) recordings were compared to 10 SR recordings and 3 ectopic atrial tachycardia (EAT) recordings. The maximum correlation coefficient was used to assess similarity between signals, i.e., if they originate from the samewavefront. The cumulative time delay, calculated as pairwise summation of interelectrode time delays was used as an indicator of activation sequence along CS. Method validation using SR... (More)
ntroduction: Correlation function analysis was applied to endocardial electrograms to investigate conduction patterns along the coronary sinus (CS) during sinus rhythm (SR) and atrial tachycardias. Methods and Results: Eighteen recordings were obtained from 14 patients suffering from supraventricular tachycardias. Five atrial fibrillation(AF) recordings were compared to 10 SR recordings and 3 ectopic atrial tachycardia (EAT) recordings. The maximum correlation coefficient was used to assess similarity between signals, i.e., if they originate from the samewavefront. The cumulative time delay, calculated as pairwise summation of interelectrode time delays was used as an indicator of activation sequence along CS. Method validation using SR showed right to left conduction with high correlations in 8 of 10 recordings indicating one single wavefront. EAT recordings showed consistent left to right conduction with left atrial foci and right to left with right atrial focus and lower correlations than SR. All 5 AFrecordings showed predominantly left to right conduction direction, also with correlations lower than SR.Conclusion: 1) Correlation function analysis can be used to assess agreement between signals and direction of activation spread. 2) Due to the position of CS, the results can be used to derive mechanisms of interatrial conduction. 3) Consistency in electrical activity propagation along CS iscommon in AF. (Less)
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Contribution to journal
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published
subject
keywords
Atrial Fibrillation: physiopathology, Algorithms, Tachycardia, Computer-Assisted, Atrioventricular Nodal Reentry: physiopathology, Ectopic Atrial: physiopathology, Electrocardiography, Heart Conduction System: physiopathology, Heart: physiology, Retrospective Studies, Linear Models, Human, Signal Processing, Reproducibility of Results
in
Journal of Cardiovascular Electrophysiology
volume
14
issue
10 Suppl
pages
148 - 153
publisher
Wiley-Blackwell
external identifiers
  • wos:000186553900006
  • pmid:14760917
  • scopus:0242523678
ISSN
1540-8167
DOI
language
English
LU publication?
yes
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84412394-79e7-4456-af37-f656f870023b (old id 120763)
alternative location
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=14760917&dopt=Abstract
date added to LUP
2007-06-21 14:14:02
date last changed
2018-05-29 11:29:29
@article{84412394-79e7-4456-af37-f656f870023b,
  abstract     = {ntroduction: Correlation function analysis was applied to endocardial electrograms to investigate conduction patterns along the coronary sinus (CS) during sinus rhythm (SR) and atrial tachycardias. Methods and Results: Eighteen recordings were obtained from 14 patients suffering from supraventricular tachycardias. Five atrial fibrillation(AF) recordings were compared to 10 SR recordings and 3 ectopic atrial tachycardia (EAT) recordings. The maximum correlation coefficient was used to assess similarity between signals, i.e., if they originate from the samewavefront. The cumulative time delay, calculated as pairwise summation of interelectrode time delays was used as an indicator of activation sequence along CS. Method validation using SR showed right to left conduction with high correlations in 8 of 10 recordings indicating one single wavefront. EAT recordings showed consistent left to right conduction with left atrial foci and right to left with right atrial focus and lower correlations than SR. All 5 AFrecordings showed predominantly left to right conduction direction, also with correlations lower than SR.Conclusion: 1) Correlation function analysis can be used to assess agreement between signals and direction of activation spread. 2) Due to the position of CS, the results can be used to derive mechanisms of interatrial conduction. 3) Consistency in electrical activity propagation along CS iscommon in AF.},
  author       = {Carlson, Jonas and Santos, Susana and Platonov, Pyotr and Kongstad Rasmussen, Ole and Johansson, Rolf and Olsson, Bertil},
  issn         = {1540-8167},
  keyword      = {Atrial Fibrillation: physiopathology,Algorithms,Tachycardia,Computer-Assisted,Atrioventricular Nodal Reentry: physiopathology,Ectopic Atrial: physiopathology,Electrocardiography,Heart Conduction System: physiopathology,Heart: physiology,Retrospective Studies,Linear Models,Human,Signal Processing,Reproducibility of Results},
  language     = {eng},
  number       = {10 Suppl},
  pages        = {148--153},
  publisher    = {Wiley-Blackwell},
  series       = {Journal of Cardiovascular Electrophysiology},
  title        = {Left atrial conduction along the coronary sinus during ectopic atrial tachycardia and atrial fibrillation: a study using correlation function analysis.},
  url          = {http://dx.doi.org/},
  volume       = {14},
  year         = {2003},
}