Journal of JCIC

Online edition: ISSN 2432–2342
JCIC学会事務局 JCIC学会事務局
〒162-0801東京都新宿区山吹町358-5アカデミーセンター Academy Center, 358-5 Yamabuki-cho, Shinju-ku, Tokyo 162-0801, Japan
Journal of JPIC 2(2): 35-42 (2017)


WPW症候群に対するカテーテル治療戦略Catheter ablation for WPW syndrome in children

1大濠こどもクリニックOohori Children’s Clinic

2埼玉医科大学国際医療センター小児心臓科Department of Pediatric Cardiology, Saitama Medical University International Medical Center

受付日:2017年12月9日Received: December 9, 2017
受理日:2017年12月20日Accepted: December 20, 2017
発行日:2017年12月31日Published: December 31, 2017


In Wolff-Parkinson-White (WPW) syndrome, there is an accessory atrioventricular pathway (AP) that can allow atrioventricular conduction other than through the atrioventricular node, which can cause various arrhythmias. Radiofrequency catheter ablation is an established method of therapy for WPW syndrome. APs are considered to be structures remaining from the embryonic stage. Most atrioventricular reentrant tachycardias in both fetuses and newborns resolve spontaneously within the first months of life, and >60% of patients require no antiarrhythmic drug therapy, and remain free of symptoms after the age of 1 year. To perform catheter ablation for WPW syndrome in children, it is necessary to consider the natural history, cardiac malformation, cardiac function, severity and frequency of arrhythmias, drug resistance, and position of an accessory conduit, etc. In Japan, catheter based cryoablation has been introduced and approved for atrioventricular nodal reentrant tachycardia. This treatment is expected as a safe catheter ablation treatment for septal APs, which may result in atrioventricular block.

Key words: Wolff-Parkinson-White (WPW) syndrome; accessory atrioventricular pathway; atrioventricular reentrant tachycardias; catheter ablation; cryoablation

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