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  4. Radiofrequency Catheter Ablation of Tachycardia in Children with and without Congenital Heart Disease: Indications and Limitations
 
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Radiofrequency Catheter Ablation of Tachycardia in Children with and without Congenital Heart Disease: Indications and Limitations

Resource
INTERNATIONAL JOURNAL OF CARDIOLOGY v.72 n.3 pp.221-227
Journal
INTERNATIONAL JOURNAL OF CARDIOLOGY
Journal Volume
72
Journal Issue
3
Pages
221
Date Issued
2000
Date
2000
Author(s)
MEI-HWAN WU  
JIUNN-LEE LIN  
LING-PING LAI  
YOUNG, MING-LONG
CHUN-WEI LU  
CHANG, YUNG-CHING
JOU-KOU WANG  
LUE, HUNG-CHI
DOI
10.1016/s0167-5273(99)00183-7
URI
http://ntur.lib.ntu.edu.tw//handle/246246/88707
https://www.scopus.com/inward/record.uri?eid=2-s2.0-0033953415&doi=10.1016%2fS0167-5273%2899%2900183-7&partnerID=40&md5=fb623e318b31b870231ff9d3f34bffdc
Abstract
From 1993 to 1998, a total of 100 consecutive pediatric patients with tachycardia (45 male and 55 female, aged 1 year 10 months to 17 years, 11 ±4 year) who underwent electrophysiological study were reviewed. Eleven of them were younger than 5 years. Two had tachycardia-related cerebrovascular accident. Congenital heart disease was found in 12 patients. After propofol anesthesia, the clinical tachycardia could not be induced in three (two atrial tachycardia and one AV nodal re-entrant tachycardia) and became nonsustained in five (atrial tachycardia). Mechanical ablation occurred in three and two had subsequent recurrences. Among the 85 cases who received radiofrequency ablation, the overall final success rate of RF ablation for all diagnoses was 94% with a diagnosis- specific success rate ranging from 100 to 57%. Tachycardia cardiomyopathy was noted in four (three atrial tachycardia and one junctional ectopic tachycardia) and all regressed after successful ablation. Success in two patients with left posterioseptal accessory pathway could only be achieved by delivering the energy at the middle cardiac vein. Two patients with right atrial isomerism had an `AV nodal-to-AV nodal tachycardia' which was eliminated by ablation. Total recurrence rate was 13% but final success was achieved in all during re-study except the three patients who refused re-intervention. The atrial tachycardia developed in postoperative congenital heart disease was associated with the lowest success rate ( 57% ) and highest recurrence rate (25%). Procedure-related complications occurred in four; two with transient brachial palsy, one with first-degree AV block and one with blood loss requiring blood transfusion. In conclusion, the experience of this single center confirmed the efficacy and safety of radiofrequency catheter ablation in treating pediatric arrhythmias, but the limitations in postoperative arrhythmias and the effects of propofol on tachycardia induction (especially the atrial tachycardia) need to be improved.
Type
journal article

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