Novel use of a 3-dimensional mapping system in cryoablation of right-sided and septal accessory pathways: playback ablation.
J Interv Card Electrophysiol
; 53(1): 91-101, 2018 Oct.
Article
em En
| MEDLINE
| ID: mdl-29948588
ABSTRACT
PURPOSE:
Despite recent advances in the treatment of eliminating accessory pathways (APs), catheter-induced mechanical block (bump) of APs has been reported to result in a less favorable outcome with high primary failure and recurrence rates. The real bump site cannot always be precisely reapproached under fluoroscopy so physicians can perform ablation to a location different from where the mechanical block was encountered. In this paper, we describe this novel use of a 3-dimensional (3D) mapping system (playback ablation) with a case series.METHODS:
The EnSite Velocity system (St. Jude Medical, St. Paul, MN, USA), a 3D mapping system, has a unique function that records the positional information of catheters in a 3D geometric map and the local potential of catheters continuously. This function enables physicians to specify the bump site in a 3D geometric map and apply ablation to the bump site even if the catheter moves away from the bump site.RESULTS:
This technique helped us eliminate APs in two patients with bump of APs, and they have been free of preexcitation and arrhythmias without the use of anti-arrhythmic drugs for more than 3 months.CONCLUSIONS:
This technique may contribute to improving long-term success in patients with mechanical block of APs.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Criocirurgia
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Imageamento Tridimensional
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Cirurgia Assistida por Computador
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Eletrocardiografia
/
Feixe Acessório Atrioventricular
Tipo de estudo:
Etiology_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Adolescent
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Adult
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Humans
/
Male
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article