Document Detail

Effectiveness of atrial antitachycardia pacing in the treatment of paroxysmal atrial fibrillation in patients with pacemakers.
MedLine Citation:
PMID:  25481779     Owner:  NLM     Status:  Publisher    
INTRODUCTION: The aim of this study was to assess the effectiveness of atrial antitachycardia pacing (ATP) in the conversion of atrial tachyarrhythmia episodes, and its impact in reducing arrhythmic burden.
METHODS: We performed a retrospective study in the pacing laboratory of a district hospital of 57 consecutive patients implanted with a dual chamber pacemaker, capable of performing atrial antitachycardia pacing, between 2005 and 2010. The patients were divided into two groups: ATP_ON (n=24) and ATP_OFF (n=33). The follow-up period was 15 months, with data being collected at three follow-up consultations: the first at three months after implantation, the second at nine months and the last at 15 months. In this period, there were 12 428 ATP therapies of atrial tachyarrhythmias.
RESULTS: Although there were no statistically significant differences, there was a trend in favor of the ATP_ON group, the increase in arrhythmic burden being less marked in this group. The mean percentage of ventricular apical pacing was also significantly lower in this group, which was associated with a marginally significant reduction in arrhythmic burden (p=0.06). There was a significant positive correlation between changes in the percentage of ventricular pacing and changes in arrhythmic burden (r=0.417, p=0.02).
CONCLUSIONS: Atrial antitachycardia pacing converted 59.7% of episodes of atrial arrhythmia, but did not significantly reduce arrhythmic burden. There was a significant positive correlation between changes in the percentage of ventricular pacing and changes in arrhythmic burden.
Rui Silva; Telmo Pereira; Vitor Martins
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-12-3
Journal Detail:
Title:  Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology     Volume:  -     ISSN:  2174-2030     ISO Abbreviation:  Rev Port Cardiol     Publication Date:  2014 Dec 
Date Detail:
Created Date:  2014-12-7     Completed Date:  -     Revised Date:  2014-12-8    
Medline Journal Info:
Nlm Unique ID:  8710716     Medline TA:  Rev Port Cardiol     Country:  -    
Other Details:
Languages:  ENG; POR     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2013 Sociedade Portuguesa de Cardiologia. Published by Elsevier España. All rights reserved.
Vernacular Title:
Eficácia das terapias de pacing auricular antitaquicardia no tratamento da fibrilhação auricular paroxística em doentes portadores de pacemaker.
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