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Transcatheter ablation using near-zero fluoroscopy in children with focal atrial tachycardia: a single-centre experience

Published online by Cambridge University Press:  20 July 2020

Sevket Balli  and
Mehmet Kucuk Open the ORCID record for Mehmet Kucuk [Opens in a new window]
Sevket Balli
Affiliation:
Department of Pediatric Cardiology, Dr. Siyami Ersek Thoracic and Cardiovascular Surgery Training & Research Hospital, University of Health Sciences, Istanbul, Turkey
Mehmet Kucuk*
Affiliation:
Department of Pediatric Cardiology, Samsun Training and Research Hospital, Samsun, Turkey
*
Author for correspondence: Assoc. Prof. Mehmet Küçük, Department of Pediatric Cardiology, Samsun Training and Research Hospital, 100. yil bulvari Kadin Dogum ve Cocuk Hastaliklari Hizmet Binasi Ilkadim, Samsun, Turkey. Tel: +90362 2309100; Fax: +90362 3111500. E-mail: drmehmetkucuk@yahoo.com
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Abstract

Objective:

Focal atrial tachycardia accounts for up to 10–15% of supraventricular tachycardiasubstrates in patients < 30 years. In this study, we aimed to demonstrate the outcome of transcatheter ablation procedures performed through three-dimensional electroanatomic mapping systems using minimal fluoroscopy in a paediatric cohort with focal atrial tachycardia.

Methods:

Forty-nine consecutive patients with focal atrial tachycardia who underwent an electrophysiologic study and a transcatheter ablation procedure in our hospital from September 2014 to February 2020 were included into the study.

Results:

The mean weight of the patients was 48.63 ± 15.4 kg, and the mean age was 14.56 ± 3.5 (5.5–18.4) years. The tachycardia was defined as incessant in 26 patients. Thirteen patients had left ventricular systolic dysfunction with a mean left ventricular ejection fraction of 38.47 ± 12.4% on echocardiography. The mean procedure time was 148.7 ± 94.5 minutes. Transseptal puncture and thus fluoroscopy were required in nine patients. The mean fluoroscopy time was 4.51 ± 5.9 minutes. No fluoroscopy was needed in ablations performed in the right atrium. The acute success rate of the ablation procedures was 97.9%. The mean follow-up period was 50.71 ± 23.5 months. Recurrence was noted in two patients (4.2%).

Conclusion:

The outcomes of three-dimensional electroanatomic mapping-guided transcatheter ablation procedures are promising with high acute success, low recurrence and complication rates in children with focal atrial tachycardia. The use of fluoroscopy can be significantly decreased with three-dimensional mapping systems in this group of patients.

Keywords

Focal atrial tachycardiaelectroanatomic mappingchildrenzero-floro
Type
Original Article
Information
Cardiology in the Young , Volume 30 , Issue 9 , September 2020 , pp. 1266 - 1272
Copyright
© The Author(s), 2020. Published by Cambridge University Press

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