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Is routine echocardiography valuable after uncomplicated catheter ablation in children?

Published online by Cambridge University Press:  21 January 2005

Janneke A. E. Kammeraad
Affiliation:
University Medical Center Utrecht, Utrecht, The Netherlands
Narayanswami Sreeram
Affiliation:
University Medical Center Utrecht, Utrecht, The Netherlands University of Cologne, Cologne, Germany
Vincent van Driel
Affiliation:
University Medical Center Utrecht, Utrecht, The Netherlands
Ron Oliver
Affiliation:
Oregon Health Sciences University, Portland, OR, USA
Seshadri Balaji
Affiliation:
Oregon Health Sciences University, Portland, OR, USA

Abstract

We determined the clinical value of routine transthoracic echocardiography performed after catheter ablation of supraventricular tachyarrhythmias in children. Between April 1996 and December 2003, 253 children, of whom 135 male, with the overall group having a median age of 9, ranging from 0.1 to 19 years, underwent 280 uncomplicated radiofrequency catheter ablation procedures for supraventricular tachyarrhythmias at three institutions. In every child, transthoracic Doppler echocardiography was performed before and after the procedure. The pre-ablation transthoracic echocardiograms were normal in all, and this was one of the criterions for inclusion. The post-ablation echocardiogram showed a disorder in four asymptomatic patients. In one patient, with focal atrial tachycardia, ablated via a retrograde aortic approach, there was mild aortic valvar insufficiency. This had resolved 6 months later. Pericardial effusions developed in 3 other children. In 2 the effusions resolved spontaneously but 1 patient required pericardial drainage. This same patient also developed clinically asymptomatic mild aortic insufficiency, which resolved spontaneously within 6 months. Routine echocardiography after uncomplicated catheter ablation procedures is of clinical value, and is especially indicated when a retrograde aortic approach has been used.

Type
Original Article
Copyright
© 2004 Cambridge University Press

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