A5101993515- Total Knee Arthroplasty Outcomes
- Orthopaedic implants and arthroplasty
- Atrial Fibrillation Management and Outcomes
- Orthopedic Infections and Treatments
- Knee injuries and reconstruction techniques
- Cardiac Arrhythmias and Treatments
- Cardiovascular Function and Risk Factors
- Acute Kidney Injury Research
- Cardiovascular Health and Disease Prevention
- Heart Rate Variability and Autonomic Control
- Cardiac electrophysiology and arrhythmias
- Graphene research and applications
- Carbon Nanotubes in Composites
- Chronic Kidney Disease and Diabetes
- Blood Pressure and Hypertension Studies
- Diabetes, Cardiovascular Risks, and Lipoproteins
- Neonatal Health and Biochemistry
- Folate and B Vitamins Research
- Esophageal and GI Pathology
- Cardiac Fibrosis and Remodeling
- Heart Failure Treatment and Management
- Sarcoma Diagnosis and Treatment
- Vascular Procedures and Complications
- Bone Tumor Diagnosis and Treatments
- Alcohol Consumption and Health Effects
Seoul St. Mary's Hospital
2015-2016
Catholic University of Korea
2007-2016
Sungkyunkwan University
2010-2015
Samsung Medical Center
2011-2013
St. Paul's Hospital
2011
Bandgap-controlled semiconducting single-walled carbon nanotubes (s-SWNTs) were synthesized using a uniquely designed catalytic layer (Al2O3/Fe/Al2O3) and conventional thermal chemical vapor deposition. Homogeneously sized Fe nanoparticles prepared on the Al2O3 their sizes controlled by simply modulating annealing time via heat-driven diffusion subsequent evaporation of at 800 °C. Transmission electron microscopy Raman spectroscopy revealed that SWNTs diameter was manipulated from 1.4 to 0.8...
Background and Objectives: Although there have been so many reports of catheter ablation atrial fibrillation (AF) with magnetic navigation system (MNS), it is not necessarily obvious that MNS more effective than conventional ablation.We performed AF compared the clinical outcomes radiofrequency parameters those ablation.Subjects Methods: One hundred eleven consecutive patients (conventional group, n=70 vs. n=41) undergoing were enrolled.We analyzed procedural parameters, namely fluoroscopic...
No feasible method currently exists to evaluate systemic metastasis in patients with myxoid liposarcoma. The purpose of this study was determine the feasibility performing whole-body magnetic resonance imaging (MRI) detect metastatic From June 2008 May 2010, all who were newly diagnosed liposarcomas at our institution underwent MRI along other conventional methods. We divided whole body into 38 sections (7 soft tissue and 31 bone sections). In total, there 570 regions (105 465 bony regions)...
Background: The roles of soluble and endogenous secretory receptors for advanced glycation endproducts (sRAGE esRAGE, respectively) in plaque vulnerability are unknown patients with acute myocardial infarction (AMI). Methods Results: We enrolled 54 AMI (27 had type 2 diabetes mellitus [DM]) who undergone primary percutaneous coronary intervention, controls were matched age, gender the presence DM. Plasma levels s/esRAGE matrix metalloproteinase (MMP)-9 measured at time angiography. There no...
Smoking is associated with increased plasma homocysteine levels, and both are an risk of cardiovascular disease. However, little information available on the effects passive smoking level in nonsmokers. We analyzed data self-reported never-smokers (aged ≥ 20 years, n = 3,232), who were from Third National Health Nutrition Examination Survey. quantified nicotine exposure by dividing into quartiles as based serum cotinine values. Multiple linear logistic regression models used to determine any...
Pulse wave velocity (PWV) is a well-established marker for aortic stiffness and may be prognostic factor in heart failure (HF). This study investigates whether PWV changes as patients transition from acute decompensated (ADHF) to chronic compensated (CCHF).Arterial related with the development of HF.Regional was prospectively measured using noninvasive applanation tonometry consecutive ADHF (n = 55). measurements 45 were taken at admission 3-month follow-up (F/U).Central upper-extremity PWV,...
Chronic kidney disease (CKD) is a significant risk factor for contrast induced acute injury (CI-AKI) after percutaneous coronary intervention (PCI). This study included 1592 CKD patients extracted from prospective multicenter, all comer-based registry of undergoing PCI. In multivariate logistic analysis CI-AKI development, linear trend was observed between the quartiles HDL-C (quartile 1 vs. 2: odds ratio [OR], 0.716; 95% confidence interval [CI], 0.421-1.219; quartile 3: OR, 0.534; CI,...
The purpose of this study was to evaluate clinical results and accuracy femoral cutting in the coronal plane total knee arthroplasty (TKA) using a fixed length intramedullary guide.From 2005 2008, 101 patients (154 knees) underwent TKA (NexGen LPS implant). minimal follow-up period 3 years (mean, 4.4 years). were divided into two groups (group 1, 94≤α angle<98; group 2, 94>α, 98≤α). Mechanical axis deviation (MAD), patellar tilting angle (PTA), Knee Society Score (KSKS), Function (KSFS)...
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Considering that contrast medium is excreted through the whole kidney in a similar manner to drug excretion, use of raw estimated glomerular filtration rate (eGFR) rather than body surface area (BSA)-normalized eGFR thought be more appropriate for evaluating risk contrast-induced acute injury (CI-AKI).This study included 2,189 myocardial infarction patients treated with percutaneous coronary intervention. Logistic regression analysis was performed identify independent factors. We used...
Unicompartmental Knee Arthroplasty?This study was undertaken to determine the prevalence and natural course of venous thromboembolism (VTE) without thromboprophylaxis ascertain whether routine is necessary following unicompartmental knee arthroplasty (UKA) in Korean patients.The medical records multidetector row computed tomography (MDCT) imaging consecutive 77 UKAs 70 patients were reviewed.In all patients, MDCTs preoperatively at 1-week after surgery, VTE symptoms evaluated.At...
Background The brachial-ankle pulse wave velocity (baPWV) is a useful parameter to assess arterial stiffness. However, it difficult evaluate stiffness in hypertensive patients because the baPWV affected by blood pressure itself. This study was designed estimate relationship between change of parameters and (ÎbaPWV) when were subjected an acute reduction pressure. Methods Thirty with essential hypertension whose higher than 140/90 mmHg enrolled. In all patients, measured using automatic...
When vertically aligned carbon nanotubes (VACNTs) are synthesized by thermal chemical vapor deposition (TCVD), their structural features such as height and density can be determined TCVD growth conditions. In this study we investigated the effect of pressure on VACNTs. Changes in significantly affected height, density, crystalinity addition, suggest that termination VACNTs could due to lack feedstock supply center VACNT film induced pressure-dependent adsorption amorphous at edge film. field...
In radiofrequency (RF) ablation for idiopathic left ventricular tachycardia (ILVT), the termination of during RF is considered a hallmark success. However, in cases patients with difficulty induction (VT), evaluation procedural success can be problematic. We have observed thermal responses reflected as rhythm change to energy delivered on sinus ILVT. therefore describe significance repetitive responses. The study subjects were 11 ILVT whom was because re-induction tachycardia. During each...
Background and Objectives: In cases of radiofrequency catheter ablation (RFCA) for patients with atrioventricular nodal re-entrant tachycardia (AVNRT), complete elimination slow pathway is not always achievable. Furthermore, in situations the so-called modified pathway, underlying mechanism remains unclear. Subjects Methods: Patients who underwent RFCA AVNRT, showed persistence dual physiology but no induction AVNRT after were enrolled. We measured electrophysiologic parameters before...