Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/39100
Citations
Scopus Web of Science® Altmetric
?
?
Type: Journal article
Title: Mapping and ablation of ventricular fibrillation associated with long-QT and Brugada syndromes
Author: Haissaguerre, M.
Extramiana, F.
Hocini, M.
Cauchemez, B.
Jais, P.
Cabrera, J.
Farre, G.
Leenhardt, A.
Sanders, P.
Scavee, C.
Hsu, L.
Weerasooriya, R.
Shah, D.
Frank, R.
Maury, P.
Delay, M.
Garrigue, S.
Clementy, J.
Citation: Circulation, 2003; 108(8):925-928
Publisher: Lippincott Williams & Wilkins
Issue Date: 2003
ISSN: 0009-7322
1524-4539
Statement of
Responsibility: 
Michel Haïssaguerre, Fabrice Extramiana, Mélèze Hocini, Bruno Cauchemez, Pierre Jaïs, Jose Angel Cabrera, Geronimo Farre, Antoine Leenhardt, Prashanthan Sanders, Christophe Scavée, Li-Fern Hsu, Rukshen Weerasooriya, Dipen C. Shah, Robert Frank, Philippe Maury, Marc Delay, Stéphane Garrigue, and Jacques Clémenty
Abstract: <h4>Background</h4>The long-QT and Brugada syndromes are important substrates of malignant ventricular arrhythmia. The feasibility of mapping and ablation of ventricular arrhythmias in these conditions has not been reported.<h4>Methods and results</h4>Seven patients (4 men; age, 38+/-7 years; 4 with long-QT and 3 with Brugada syndrome) with episodes of ventricular fibrillation or polymorphic ventricular tachycardia and frequent isolated or repetitive premature beats were studied. These premature beats were observed to trigger ventricular arrhythmias and were localized by mapping the earliest endocardial activity. In 4 patients, premature beats originated from the peripheral right (1 Brugada) or left (3 long-QT) Purkinje conducting system and were associated with variable Purkinje-to-muscle conduction times (30 to 110 ms). In the remaining 3 patients, premature beats originated from the right ventricular outflow tract, being 25 to 40 ms ahead of the QRS. The accuracy of mapping was confirmed by acute elimination of premature beats after 12+/-6 minutes of radiofrequency applications. During a follow-up of 17+/-17 months using ambulatory monitoring and defibrillator memory interrogation, no patients had recurrence of symptomatic ventricular arrhythmia but 1 had persistent premature beats.<h4>Conclusions</h4>Triggers from the Purkinje arborization or the right ventricular outflow tract have a crucial role in initiating ventricular fibrillation associated with the long-QT and Brugada syndromes. These can be eliminated by focal radiofrequency ablation.
Keywords: long-QT syndrome
death, sudden
ablation
arrhythmia
Description: © 2003 American Heart Association, Inc.
DOI: 10.1161/01.CIR.0000088781.99943.95
Published version: http://dx.doi.org/10.1161/01.cir.0000088781.99943.95
Appears in Collections:Aurora harvest 6
Medicine publications

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.