Document Detail


Effect of atrial fibrillation ablation on left atrial contractile function in patients with paroxysmal atrial fibrillation and a relatively well preserved atrial function.
MedLine Citation:
PMID:  19476107     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVES: There are inconsistent findings regarding the impact of ablation for atrial fibrillation (AF) on left atrial (LA) contractile function. We investigated the ablation effect on LA function in patients with paroxysmal AF. METHODS: Two hundred eighty-nine patients (mean age 56 +/- 9 years) underwent catheter ablation for paroxysmal AF. Transthoracic (TTE) and transoesophageal echocardiography (TEE) were performed at baseline and at 6 and 12 months after ablation for assessment of LA diameter, left atrial appendage emptying velocity (LAAEV), and A-wave peak velocity. RESULTS: LA function before ablation was relatively well preserved (LAAEV 54 +/- 19 cm/s, A-wave 59 +/- 23 cm/s). During follow-up, there was no significant change of LAAEV: from 54 +/- 19 cm/s at baseline to 54 +/- 18 at 6 months and 52 +/- 20 cm/s at 12 months (P = ns).The LA diameter at baseline was 4.2 +/- 0.6 cm and showed no significant change at 6 and 12 months (4.1 +/- 0.6 and 4.1 +/- 0.5 cm, P = ns). There was also no change of the A-wave (59 +/- 23 cm/s before ablation, 59 +/- 27 cm/s at 6 months and 53 +/- 12 cm/s at 12 months, P = ns). CONCLUSIONS: In patients with paroxysmal AF and relatively well preserved LA function, AF ablation leads to no significant deterioration of atrial function.
Authors:
Nikolaos Dagres; Gerhard Hindricks; Hans Kottkamp; Christos Varounis; Kerstin Bode; Arash Arya; Philipp Sommer; Dimitrios Th Kremastinos; Christopher Piorkowski
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Acta cardiologica     Volume:  64     ISSN:  0001-5385     ISO Abbreviation:  Acta Cardiol     Publication Date:  2009 Apr 
Date Detail:
Created Date:  2009-05-29     Completed Date:  2009-06-23     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370570     Medline TA:  Acta Cardiol     Country:  Belgium    
Other Details:
Languages:  eng     Pagination:  167-9     Citation Subset:  IM    
Affiliation:
University of Athens, Second Cardiology Department, Attikon University Hospital, Athens, Greece. nikolaosdagres@yahoo.de
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MeSH Terms
Descriptor/Qualifier:
Atrial Fibrillation / physiopathology,  surgery*,  ultrasonography
Atrial Function, Left / physiology*
Catheter Ablation / methods*
Echocardiography, Transesophageal
Electrocardiography, Ambulatory
Female
Follow-Up Studies
Heart Rate / physiology
Humans
Male
Middle Aged
Myocardial Contraction / physiology*
Retrospective Studies
Tachycardia, Paroxysmal / physiopathology,  surgery*
Treatment Outcome

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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