Focal atrial tachycardia refractory to radiofrequency catheter ablation originating from right atrial appendage

A 44-year-old female presented with incessant, drug-refractory atrial tachycardia (AT). An electrophysiological study suggested focal abnormal automaticity, and localized the AT origin to the apex of the right atrial appendage (RAA). Repeated radiofrequency catheter ablation to the site of the earli...

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Bibliographic Details
Published inEuropace (London, England) Vol. 11; no. 4; pp. 521 - 522
Main Authors Furushima, Hiroshi, Chinushi, Masaomi, Hosaka, Yukio, Aizawa, Yoshifusa
Format Journal Article
LanguageEnglish
Published England Oxford University Press 01.04.2009
Subjects
Adult
Anti-Arrhythmia Agents - therapeutic use
Atrial Appendage - physiopathology
Atrial Appendage - surgery
Catheter Ablation
Echocardiography
Electrocardiography
Female
Humans
Tachycardia, Ectopic Atrial - drug therapy
Tachycardia, Ectopic Atrial - physiopathology
Tachycardia, Ectopic Atrial - surgery
Treatment Outcome
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Summary:A 44-year-old female presented with incessant, drug-refractory atrial tachycardia (AT). An electrophysiological study suggested focal abnormal automaticity, and localized the AT origin to the apex of the right atrial appendage (RAA). Repeated radiofrequency catheter ablation to the site of the earliest endocardial activation during AT failed. At surgery, right atrial appendectomy terminated the AT. On macroscopic findings, the cavity of the RAA became a dead-end before the apex. In patients with drug and radiofrequency catheter ablation, refractory focal AT arising from the RAA, especially the apex of the RAA, in our opinion surgical treatment could be considered in the lack of efficacy of ablation.
Bibliography:ObjectType-Case Study-2
SourceType-Scholarly Journals-1
ObjectType-Feature-4
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ObjectType-Report-1
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ISSN:1099-5129
1532-2092
DOI:10.1093/europace/eup046