Ventricular Dyssynchrony and Function Improve following Catheter Ablation of Nonseptal Accessory Pathways in Children
Joint Authors
Abadir, Sylvia
Fournier, Anne
Dubuc, Marc
Sarquella-Brugada, Georgia
Garceau, Patrick
Khairy, Paul
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-06-18
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Paradoxical or hypokinetic interventricular septal motion has been described in patients with septal or paraseptal accessory pathways.
Data regarding nonseptal pathways is limited.
Methods and Results.
We quantified left ventricular dyssynchrony and function in 16 consecutive children, 14.2±3.7 years, weighing 53 ± 17 kg, prior to and following catheter ablation of bidirectional septal (N=6) and nonseptal (N=10) accessory pathways.
Following ablation, the left ventricular ejection fraction increased by 4.9±2.1% (P=0.038) from a baseline value of 57.0%±7.8%.
By tissue Doppler imaging, the interval between QRS onset and peak systolic velocity (Ts) decreased from a median of 33.0 ms to 18.0 ms (P=0.013).
The left ventricular ejection fraction increased to a greater extent following catheter ablation of nonseptal (5.9%±2.6%, P=0.023) versus septal (2.5%±4.1%, P=0.461) pathways.
The four patients with an ejection fraction <50%, two of whom had left lateral pathways, improved to >50% after ablation.
Similarly, the improvement in dyssynchrony was more marked in patients with nonseptal versus septal pathways (difference between septal and lateral wall motion delay before and after ablation 20.6±7.1 ms (P=0.015) versus 1.4±11.4 ms (P=0.655)).
Conclusion.
Left ventricular systolic function and dyssynchrony improve after ablation of antegrade-conducting accessory pathways in children, with more pronounced changes noted for nonseptal pathways.
American Psychological Association (APA)
Abadir, Sylvia& Fournier, Anne& Dubuc, Marc& Sarquella-Brugada, Georgia& Garceau, Patrick& Khairy, Paul. 2013. Ventricular Dyssynchrony and Function Improve following Catheter Ablation of Nonseptal Accessory Pathways in Children. BioMed Research International،Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-1003543
Modern Language Association (MLA)
Abadir, Sylvia…[et al.]. Ventricular Dyssynchrony and Function Improve following Catheter Ablation of Nonseptal Accessory Pathways in Children. BioMed Research International No. 2013 (2013), pp.1-7.
https://search.emarefa.net/detail/BIM-1003543
American Medical Association (AMA)
Abadir, Sylvia& Fournier, Anne& Dubuc, Marc& Sarquella-Brugada, Georgia& Garceau, Patrick& Khairy, Paul. Ventricular Dyssynchrony and Function Improve following Catheter Ablation of Nonseptal Accessory Pathways in Children. BioMed Research International. 2013. Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-1003543
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1003543