Comparison of electrogram waveforms between a multielectrode mapping catheter and a linear ablation catheter.
electrogram
low-voltage area
mapping catheters
voltage map
Journal
Pacing and clinical electrophysiology : PACE
ISSN: 1540-8159
Titre abrégé: Pacing Clin Electrophysiol
Pays: United States
ID NLM: 7803944
Informations de publication
Date de publication:
05 2019
05 2019
Historique:
received:
14
12
2018
revised:
23
02
2019
accepted:
26
02
2019
pubmed:
19
3
2019
medline:
4
12
2019
entrez:
19
3
2019
Statut:
ppublish
Résumé
Smaller low-voltage areas (LVAs) obtained by multielectrode catheters were reported than those by linear ablation catheters. However, the underlying electrogram difference has not been elucidated. This study aimed to compare the two mapping catheters' measurements of electrogram waveforms and LVAs. This prospective observational study included 17 consecutive patients undergoing ablation for persistent atrial fibrillation. Following pulmonary vein isolation, voltage mapping during sinus rhythm was performed once using the ablation catheter, and once using the multielectrode catheter. Approximately 20 pairs of mapping points at approximately the same position between the two voltage maps were manually selected evenly throughout the left atrium. Voltage mapping with the multielectrode catheter demonstrated smaller LVAs, defined as <0.50 mV (5.9 [3.3, 11.0] vs 9.7 [6.6, 16.9] cm The multielectrode catheter produced smaller LVA measurements with sharper and higher voltage electrograms compared to the ablation catheter, specifically in diseased areas.
Sections du résumé
BACKGROUND
Smaller low-voltage areas (LVAs) obtained by multielectrode catheters were reported than those by linear ablation catheters. However, the underlying electrogram difference has not been elucidated. This study aimed to compare the two mapping catheters' measurements of electrogram waveforms and LVAs.
METHODS
This prospective observational study included 17 consecutive patients undergoing ablation for persistent atrial fibrillation. Following pulmonary vein isolation, voltage mapping during sinus rhythm was performed once using the ablation catheter, and once using the multielectrode catheter. Approximately 20 pairs of mapping points at approximately the same position between the two voltage maps were manually selected evenly throughout the left atrium.
RESULTS
Voltage mapping with the multielectrode catheter demonstrated smaller LVAs, defined as <0.50 mV (5.9 [3.3, 11.0] vs 9.7 [6.6, 16.9] cm
CONCLUSION
The multielectrode catheter produced smaller LVA measurements with sharper and higher voltage electrograms compared to the ablation catheter, specifically in diseased areas.
Types de publication
Comparative Study
Journal Article
Observational Study
Langues
eng
Sous-ensembles de citation
IM
Pagination
515-520Informations de copyright
© 2019 Wiley Periodicals, Inc.