A5008844687- Congenital Heart Disease Studies
- Cardiac Valve Diseases and Treatments
- Cardiovascular Function and Risk Factors
- Cardiac Structural Anomalies and Repair
- Cardiac Arrhythmias and Treatments
- Vascular anomalies and interventions
- Cardiovascular Issues in Pregnancy
- Cardiomyopathy and Myosin Studies
- Pulmonary Hypertension Research and Treatments
- Aortic Disease and Treatment Approaches
- Cardiac pacing and defibrillation studies
- Cardiac electrophysiology and arrhythmias
- Coronary Artery Anomalies
- Congenital heart defects research
- Cardiovascular Effects of Exercise
- Tracheal and airway disorders
- Cardiac Imaging and Diagnostics
- Cardiovascular and Diving-Related Complications
- Hemodynamic Monitoring and Therapy
- Infective Endocarditis Diagnosis and Management
- Ultrasound in Clinical Applications
- Vascular Anomalies and Treatments
- Cardiovascular Health and Disease Prevention
- Transplantation: Methods and Outcomes
- Atrial Fibrillation Management and Outcomes
Nagano Children's Hospital
2016-2025
Creative Commons
2023
Kanazawa University Hospital
2019
Japan Pediatric Society
2019
Tokyo Women's Medical University
2016
Boston Children's Hospital
2009-2013
Yokohama City University
1997-2009
Yokohama City University Medical Center
2001-2004
Tsurumi University
1998-2001
Jikei University School of Medicine
1998
Background: To determine the normal range of left ventricular (LV) 2- dimensional (2-D) strain and vendor-specific differences, a multicenter prospective 2-D study endorsed by Japanese Society Echocardiography was conducted. Methods Results: speckle tracking analysis performed on 817 healthy subjects (age range, 0–88 years); images included 3 LV short axis apical views using an ultrasound system from 1 different vendors (V1, n=333; V2, n=330; V3, n=337). With software each vendor, radial,...
The aim of this multicentre study was to determine the normal range and clinical relevance myocardial function left atrium (LA) analysed by 2D speckle-tracking echocardiography (2DSTE). We 329 healthy adult subjects prospectively included in 10 centres a validation group 377 patients with ventricular diastolic dysfunction (LVDD). LA strain rate peak during contraction (LA-SRa) relaxation (LA-Strain). values LA-SRa −2.11 ± 0.61 s−1 LA-Strain 45.5 11.4%, lowest expected these analyses...
Pulmonary valvular regurgitation in postoperative patients with repaired tetralogy of Fallot (rTOF) significantly impairs exercise capacity and causes right heart failure. Quantitative evaluation the pulmonary fraction (PRF) by cardiac magnetic resonance (CMR) is commonly used to determine indication for surgical or catheter interventions, but less using echocardiography. We retrospectively investigated feasibility validation vector flow mapping (VFM) quantification PRF (VFM-PRF) 34...
As prenatal diagnosis of congenital heart disease has gained in popularity, the questions whether is beneficial for patient and fetal echocardiography improved prognosis are arising.We compared four patients with prenatally diagnosed hypoplastic left syndrome (HLHS) 10 non-prenatally HLHS from view points (i) age at transfer to our Children's Hospital; (ii) oxygen was inhaled during perinatal period; (iii) prostaglandin E1 administered period waiting before operation; (iv) had ductal shock;...
The prevalence of Brugada-type electrocardiogram (ECG) in schoolchildren remains unclear. This study aimed to further investigate this condition.We studied the ECG 20,387 children (10,434 males and 9,953 females, 9.7 +/- 3.2 [SD] years old) during a school health examination Kanagawa Prefecture, Japan, 2002. We considered right bundle-branch block ST-segment elevation J point > or =0.1 mV leads V1 through V3 as Brugada-like ECG, an was be when 12-lead fully meet criteria for Brugada syndrome...
The prognosis of ventricular tachycardia (VT) in children with overt heart disease is generally good, so the aim this study was to review and necessity treatment VT that detected by school-based screening.Of 48 cases pediatric have been followed for 2-30 years, 17% were diagnosed at first screening test (12-lead ECG rest) remainder who had premature contractions (PVC) on resting 12-lead required Holter exercise stress detect VT. In 90% cases, healthy idiopathic non-sustained more than half...
Between August 1999 and December 2007, 72 consecutive patients with single ventricle physiology underwent a modified Fontan procedure after bidirectional Glenn shunt using an extracardiac polytetrafluoroethylene conduit without fenestration. Nitric oxide gas inhalation was commenced just cardiopulmonary bypass together intravenous phosphodiesterase III inhibitor administration. After oral intake started, pulmonary vascular dilators such as beraprost, sildenafil, bosentan were given orally...
Left ventricular noncompaction (LVNC) is a hereditary type of cardiomyopathy. Although it associated with high morbidity and mortality, the related ion channel gene variants in children have not been fully investigated. This study aimed to elucidate genetic landscape LVNC identify genotype-phenotype correlations large Japanese cohort.We enrolled 206 from 2002 2017 Japan. was classified as follows: congenital heart defects, arrhythmia, dilated phenotype, or normal function. In patients, 182...
Background : Idiopathic sustained ventricular tachycardia originating from the left ventricle (ILVT) has been an indication for catheter ablation. The present study evaluated clinical features, long‐term prognosis and indications treatment in pediatric patients with ILVT. Methods subjects of were eight (four males four females) a mean age at onset 11.0 years (range 3–15 years). follow‐up period was 7.7 2.1–11.3 Results In electrophysiologic studies, intravenously administered verapamil...
Aims Real time 3D echocardiography ( RT 3 DE ) has been applied for the assessment of left atrial LA function in patients with adult heart disease; however, is not well known children. We aimed at determining normal range volume LAV using and feasibility reproducibility this method healthy subjects elucidating developmental changes aging. Methods Results In study, 359 people (mean age, 23.9 ± 21.3; range, 0.1–76.4 years) were enrolled. performed transthoracic measured maximum minimum ....
Background. The purpose of this study was to evaluate the surgical outcomes and pulmonary artery (PA) development associated with a new strategy wherein modified Norwood (N) procedure is performed at 1-2 months after bilateral banding (PAB). Methods. Between January 2008 February 2010, 16 patients underwent Norwood-type operation previous PAB. For analysis, were divided into two groups. Group I (n = 11) either right Blalock Taussig (RMBT) shunt 4) or ventricle (RV-PA) conduit 7). II 5) plus...
We had the unique opportunity of following electrocardiographic (ECG) course a 13-year-old male with sinus dysfunction and atrial flutter who subsequently developed Brugada-type ECG pattern associated sick syndrome at 25 years old. Family history showed that patient's mother maternal grandfather suddenly died while sleeping night. When patient was 13 old, he lost consciousness after running marathon. The diagnosed flutter, underwent pacemaker implantation 15 examinations performed between 20...
Background: In patients with tetralogy of Fallot (TOF), left ventricular (LV) dysfunction is an important factor associated poor clinical outcome. Objective: The purpose this study was to investigate the torsion and multidirectional strain LV in TOF. Methods: Echocardiographic images were prospectively acquired 29 who underwent TOF repair (age range, 5–25 years) normal controls. Torsion circumferential longitudinal assessed using speckle tracking imaging. Results: smaller compared that...