A5054964119- Cardiac Arrhythmias and Treatments
- Atrial Fibrillation Management and Outcomes
- Cardiac electrophysiology and arrhythmias
- Cardiac pacing and defibrillation studies
- Congenital Heart Disease Studies
- Tracheal and airway disorders
- Cardiac Structural Anomalies and Repair
- Coronary Artery Anomalies
- Kawasaki Disease and Coronary Complications
- Pulmonary Hypertension Research and Treatments
- Cardiovascular Syncope and Autonomic Disorders
- Cardiovascular Issues in Pregnancy
- Cardiovascular and Diving-Related Complications
- Vascular anomalies and interventions
- Tuberous Sclerosis Complex Research
- Asthma and respiratory diseases
- Congenital Diaphragmatic Hernia Studies
- Wireless Power Transfer Systems
- Atherosclerosis and Cardiovascular Diseases
- Ultrasound in Clinical Applications
- Vascular Anomalies and Treatments
- Pediatric health and respiratory diseases
- Biomarkers in Disease Mechanisms
- Heat shock proteins research
- Dermatology and Skin Diseases
Ewha Womans University Medical Center
2022-2024
Ewha Womans University
2017-2023
Kangdong Sacred Heart Hospital
2017
Hallym University Medical Center
2016-2017
Hallym University
2017
Korea University
2011-2015
Korea University Medical Center
2011-2014
Sejong General Hospital
2011
Pusan National University
2006-2010
Pusan National University Hospital
2007
The mechanism responsible for premature ventricular complex (PVC)-mediated left (LV) dysfunction remains unclear. We sought to determine the electrocardiographic and electrophysiological characteristics of PVC-mediated LV dysfunction. One hundred twenty-seven patients who underwent radiofrequency catheter ablation (RFCA) frequent PVCs (PVCs burden ≥10%/24 h) had no significant structural heart disease were investigated. Left (ejection fraction < 50%) was present in 28 127 (22.0%). mean PVC...
Abstract Background The clinical significance of the neutrophil : lymphocyte ratio ( NLR ) has not yet been fully elucidated in Kawasaki disease KD ). purpose this study was to investigate relationship between and response i.v. immunoglobulin IVIG ), its effect on coronary abnormalities . Methods A total 196 patients treated with were analyzed. Baseline evaluated immediately before therapy classified into two groups according data, other inflammatory biomarkers, complications also assessed....
Background and Objectives:The electrophysiological properties associated with favorable outcome of radiofrequency catheter ablation (RFCA) for idiopathic ventricular arrhythmia (VA) originating from the papillary muscle (PM) remain unclear.The purpose this study was to investigate relationships characteristics predictors RFCA in patients VAs PM left ventricle (LV).Subjects Methods: Twelve (4.2%) 284 consecutive LV were assessed.The data compared between successful group recurrence after...
It has been demonstrated that atrial fibrillation (AF) frequently recurred after cardioversion (CV) using direct current (DC) or radiofrequency catheter ablation (RFCA) in patients with persistent (PeAF) longstanding AF (LPAF). We hypothesized the substrate impeding successful CV would also produce difficulty ablation, and therefore, outcomes of RFCA for PeAF LPAF could be predicted by parameters determined at time DC CV.From 2006 to 2009, 94 who had undergone elective before were studied....
AimsThe interatrial septal thickness (IAST) reflects the changes of atrial wall in patients with fibrillation (AF). Complex fractionated electrograms (CFAEs) were consistently positioned on septum, especially remodelled left atrium (LA). We sought to characterize relationship between IAST and LA CFAE area, as well acute procedural clinical outcomes catheter ablation persistent AF patients.
Abstract Background We investigated the prevalence and electrocardiographic electrophysiological characteristics of ventricular arrhythmias (VAs) originating from para‐Hisian area. Methods Among 250 patients with idiopathic VAs, 8 (3.2%) had an ablation site in region. For comparison right (RV) VAs ( n =6), 27 posterior RV outflow tract (RVOT) were studied. Results Para‐Hisian R wave leads I aVL. The below His bundle region determined to have a superior axis =4, 50%). A potential was...
AF Termination Sites During RA CFAE Ablation Background The role of right atrial (RA) ablation guided by complex fractionated electrograms (CFAE) in fibrillation (AF) has been debated. This study evaluated the spatial distribution CFAE, critical sites, and predictors successful termination longstanding persistent during ablation. Methods A total 97 patients with who received automated detection mapping at for sustained after pulmonary vein isolation left (LA) CFAE‐guided were analyzed....
Induced Atrial Tachyarrhythmia During Fibrillation Ablation. Introduction: The utility of inducibility test atrial tachycardia (AT) in patients with longstanding persistent fibrillation (AF; LPAF) is unclear. This study aimed to evaluate the significance induced AT and impact their ablation on clinical outcome. Methods: In 194 LPAF (>1 year) who underwent catheter (pulmonary vein isolation substrate ablation), an was performed after AF termination. Results: 108 (56%) (induced group);...
Complex fractionated atrial electrograms (CFAEs) are a substrate modification target in patients with fibrillation (AF). However, whether CFAEs can be also arrhythmogenic grounds of tachycardia (AT) presenting after AF ablation remains to determined. We investigated the relationship between and critical site AT CFAE-guided ablation.Seventy-two showing pulmonary vein isolation further were included. The termination sites 95 distinct ATs annotated on color-coded CFAE cycle maps. Of ATs, 61...
This study aimed to generate a Z score calculation model for coronary artery diameter of normal children and adolescents be adopted as the standard method with consensus in clinical practice.
Transesophageal atrial pacing study was used to document arrhythmias in 67 infants and children age 2 months 16 years (mean, 8.3 years), who had palpitations or symptoms suggesting tachyarrhythmias but no electrocardiographic documentation of cardiac dysrhythmias. The transesophageal medical records were reviewed retrospectively. In 47 (70%) the with suspected tachyarrhythmias, induced various tachycardias, which may be cause symptoms. 10 patients, tachycardia during infusion isoproterenol....
Radiofrequency catheter ablation (RFCA) has recently become a management option for pediatric tachycardia. We reviewed the records of total 100 patients (aged 10 months to 19 yr) who had undergone RFCA, from March 2000 June 2004. Types arrhythmia (age, acute success rate) were as follows: atrioventricular reentrant tachycardia (AVRT, 9.0+/-3.7 yr, 66/67), nodal (AVNRT, 13+/-2.5 16/16), ectopic atrial (6.4+/-3.3 5/5), junctional (10 month, 1/1), ventricular (12+/-4.9 6/6), postsurgical...
Purpose Human adenovirus infection mimics Kawasaki disease (KD) but can be detected in KD patients. The aim of this study was to determine the clinical differences between with and only adenoviral identify biomarkers for prediction adenovirus-positive from isolated infection. Methods A total 147 patients were identified by quantitative polymerase chain reaction. In addition, 11 having adenovirus, who treated intravenous immunoglobulin therapy during acute phase also evaluated. Results...
Cardiac rhabdomyomas are typically presented in the tuberous sclerosis. Although benign and often associated with spontaneous regression, rare circumstances huge mass size critical location can lead to heart failure, ventricular outflow tract obstruction refractory tachyarrhythmias. An 1-day-old girl was diagnosed as cardiac tumor during perinatal period. At birth, transthoracic echocardiography revealed located septal area of both ventricle measuring 34×30 mm. It protruded into left (LV)...
Abstract: A 38-year-old woman presented with antiarrhythmic drug-refractory atrial tachycardia (AT). Holter recording demonstrated incessant episodes of AT followed by a long sinus pause. Electrophysiologic study revealed that the earliest endocardial activation was observed at neck left appendage (LAA). After unsuccessful ablation, epicardial access via percutaneous subxiphoid approach on opposite site to LAA suggestive ligament Marshall (LOM) muscle sleeve as regarding sharp potentials...