A multi-center experience of ablation index for evaluating lesion delivery in typical atrial flutter.
ablation index
atrial flutter
catheter ablation
cavo-tricuspid isthmus
force sensing
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:
Jun 2021
Jun 2021
Historique:
revised:
18
02
2021
received:
20
01
2021
accepted:
21
03
2021
pubmed:
31
3
2021
medline:
27
1
2022
entrez:
30
3
2021
Statut:
ppublish
Résumé
Anatomical studies demonstrate significant variation in cavotricuspid isthmus (CTI) architecture. Thirty-eight patients underwent CTI ablation at two tertiary centers. Operators delivered 682 lesions with a target ablation index (AI) of 600 Wgs. Ablation parameters were recorded every 10-20 ms. Post hoc, Visitags were trisected according to CTI position: inferior vena cava (IVC), middle (Mid), or ventricular (V) lesions. There were no complications. 92.1% of patients (n = 35) remained in sinus rhythm after 14.6 ± 3.4 months. For the whole CTI, peak AI correlated with mean impedance drop (ID) (R Ablation characteristics vary across the CTI. At the Mid CTI, higher AI values do not necessarily deliver more effective ablation; this may reflect localized fluctuations in catheter angle and contact force.
Sections du résumé
BACKGROUND
BACKGROUND
Anatomical studies demonstrate significant variation in cavotricuspid isthmus (CTI) architecture.
METHODS
METHODS
Thirty-eight patients underwent CTI ablation at two tertiary centers. Operators delivered 682 lesions with a target ablation index (AI) of 600 Wgs. Ablation parameters were recorded every 10-20 ms. Post hoc, Visitags were trisected according to CTI position: inferior vena cava (IVC), middle (Mid), or ventricular (V) lesions.
RESULTS
RESULTS
There were no complications. 92.1% of patients (n = 35) remained in sinus rhythm after 14.6 ± 3.4 months. For the whole CTI, peak AI correlated with mean impedance drop (ID) (R
CONCLUSIONS
CONCLUSIONS
Ablation characteristics vary across the CTI. At the Mid CTI, higher AI values do not necessarily deliver more effective ablation; this may reflect localized fluctuations in catheter angle and contact force.
Types de publication
Journal Article
Multicenter Study
Langues
eng
Sous-ensembles de citation
IM
Pagination
1039-1046Informations de copyright
© 2021 The Authors. Pacing and Clinical Electrophysiology published by Wiley Periodicals LLC.
Références
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