Tsugutoshi Suzuki

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BACKGROUND Mutations of KCNJ2, the gene encoding the human inward rectifier potassium channel Kir2.1, cause Andersen-Tawil syndrome (ATS), a disease exhibiting ventricular arrhythmia, periodic paralysis, and dysmorphic features. However, some KCNJ2 mutation carriers lack the ATS triad and sometimes share the phenotype of catecholaminergic polymorphic(More)
We herein reported 2 successful neonates with Ebstein's anomaly and small pulmonary arteries undergoing Starnes operation preserving the patent ductus arteriosus. Subsequent Blalock-Taussig shunt was carried out 1 or 2 months after the first surgery. One case had already undergone a successful Fontan operation, and the other had a successful bidirectional(More)
AIMS Transseptal puncture (TSP) has become a common approach in catheter ablation of arrhythmia originating from the left atrium. In paediatric patients, however, TSP can be a challenge due to narrower access vessels and small left atrial size, and the safety of TSP in smaller children is yet to be understood. The purpose of this study was to(More)
BACKGROUND  Circumstances and outcomes of out-of-hospital cardiac arrest (OHCA) in elementary and middle school students while at school in the era of public-access defibrillation are unknown. METHODS AND RESULTS  We conducted a nationwide hospital-based survey of elementary and middle school students who had had OHCA of cardiac origin and received(More)
BACKGROUND In school-based cardiovascular screening programs in Japan, Wolff-Parkinson-White (WPW) syndrome is diagnosed based on the presence of an electrocardiographic (ECG) delta wave without differentiation from the fasciculoventricular pathway (FVP), although the risk of sudden death is associated only with the former. OBJECTIVE The purpose of this(More)
BACKGROUND Idiopathic ventricular tachycardia of left anterior fascicular origin (IVT-LAF) is a rare condition, and radiofrequency catheter ablation (RFCA) therapy has not been reported in children. OBJECTIVE This study aimed to evaluate the procedures and outcomes of RFCA for pediatric IVT-LAF. METHODS Pediatric IVT-LAF cases for which RFCA was(More)
BACKGROUND Persistent tachycardia in pediatric patients after congenital heart surgery further deteriorates their hemodynamic condition, and may become fatal. Therefore, immediate control of the tachycardia is mandatory in these patients. For this purpose, quick-acting, short-acting, titratable intravenous agents are required. However, there are no agents(More)
Wolff-Parkinson-White syndrome is associated with heart failure (HF) mainly via tachycardia. Several case report series have suggested dyssynchrony due to an accessory pathway as a possible cause of HF even in the absence of tachyarrhythmias. The role of cardiac resynchronization in the suppression of anterograde conduction of accessory pathways by catheter(More)
Yoko Yoshida, MD, Keiichi Hirono, MD, PhD, Kae Nakamura, MD, Tsugutoshi Suzuki, MD, PhD, Yukiko Hata, MD, PhD, Naoki Nishida, MD, PhD From the Department of Pediatric Electrophysiology, Osaka City General Hospital, Osaka, Japan, Department of Pediatrics, Graduate School of Medicine, University of Toyama, Toyama, Japan, Department of Pediatrics, Osaka City(More)
compared this screw-in type lead with a sutured-on counterpart (CapSure Epi 4968) for LV pacing in 54 and 76 adult patients, respectively, both types of leads showed excellent, comparable performance with low complications rates. Although the larger size of the MyoDex lead may be disadvantageous, given the limited field of view in left thoracotomy, it(More)