Atrial Tachycardia During Ongoing Atrial Fibrillation Ablation - EnSite Array Analysis -

Yasutsugu Nagamoto; Takeshi Tsuchiya; Koji Miyamoto; Takanori Yamaguchi; Naohiko Takahashi

doi:10.1253/circj.cj-10-0742

January 1, 2011Circulation JournalOpen Access

Atrial Tachycardia During Ongoing Atrial Fibrillation Ablation - EnSite Array Analysis -

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Why the study?

Does EA-guided radiofrequency ablation eliminate atrial tachycardia during ongoing atrial fibrillation ablation?

Key Points

To characterize the occurrence, underlying mechanisms, and ablation outcomes of atrial tachycardia arising during catheter ablation for atrial fibrillation using EnSite Array mapping.
Monitored patients for the occurrence of atrial tachycardia during ongoing atrial fibrillation ablation procedures.
Used EnSite Array-guided electroanatomic mapping to locate focal or reentrant circuits across diverse atrial regions.
Performed targeted radiofrequency ablation guided by the mapping system to eliminate the identified arrhythmias.
Atrial tachycardia occurred in 37% of patients during ongoing atrial fibrillation ablation.
Tachycardias originated from focal or reentrant mechanisms across diverse sites, most frequently presenting as peri-mitral atrial tachycardia, common atrial flutter, and pulmonary vein tachycardia.
EnSite Array-guided radiofrequency ablation successfully eliminated these atrial tachycardias in most cases.

Structured PICO

Does EA-guided radiofrequency ablation eliminate atrial tachycardia during ongoing atrial fibrillation ablation?

P

Population

Patients undergoing atrial fibrillation ablation

I

Intervention

EnSite Array (EA)-guided radiofrequency ablation

O

Outcome

Elimination of atrial tachycardia

EnSite Array-guided radiofrequency ablation is effective in eliminating atrial tachycardias that frequently occur during atrial fibrillation ablation.

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Implication

May support EA-guided ablation of AT during AF procedures; leaves open need for randomized confirmation.

Abstract

AT occurred in 37% of the patients during ongoing AF ablation, resulting from a focal or reentrant mechanism in diverse locations. Peri-mitral AT, common atrial flutter, and AT from the pulmonary vein were frequently observed. These ATs were eliminated by EA-guided radiofrequency ablation in most cases.

Discussion

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Cite This Study

Nagamoto et al. (2011) studied this question.

synapsesocial.com/papers/69eee0110fb71af24d311a1a https://doi.org/10.1253/circj.cj-10-0742

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Atrial Tachycardia During Ongoing Atrial Fibrillation Ablation - EnSite Array Analysis -

Key Points

Structured PICO

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

Atrial Tachycardia During Ongoing Atrial Fibrillation Ablation - EnSite Array Analysis -

Key Points

Structured PICO

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

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