- Atrial Fibrillation Management and Outcomes
- Cardiac Arrhythmias and Treatments
- Cardiac electrophysiology and arrhythmias
- Cardiac pacing and defibrillation studies
- Cardiovascular Function and Risk Factors
- Antiplatelet Therapy and Cardiovascular Diseases
- Cardiac Arrest and Resuscitation
- Cardiac Imaging and Diagnostics
- Cardiac Health and Mental Health
- Coronary Interventions and Diagnostics
- ECG Monitoring and Analysis
- Cardiovascular Effects of Exercise
- Lipoproteins and Cardiovascular Health
- Heart Failure Treatment and Management
- Cardiovascular and exercise physiology
- Acute Myocardial Infarction Research
- Blood Pressure and Hypertension Studies
- Venous Thromboembolism Diagnosis and Management
- Health Systems, Economic Evaluations, Quality of Life
- Heart Rate Variability and Autonomic Control
- Alcohol Consumption and Health Effects
- Obstructive Sleep Apnea Research
- Cardiovascular Syncope and Autonomic Disorders
- Nutrition and Health in Aging
- Gout, Hyperuricemia, Uric Acid
Korea University Medical Center
2016-2025
Korea University
2013-2024
Dongguk University
2018-2021
Dongguk University Ilsan Hospital
2018-2019
Pusan National University Hospital
2018
Sejong General Hospital
2018
Chungbuk National University Hospital
2018
Padjadjaran University
2017
Ansan University
2010
Background Data comparing outcomes in heart failure ( HF ) across Asia are limited. We examined regional variation mortality among patients with enrolled the ASIAN ‐HF (Asian Sudden Cardiac Death Heart Failure) registry separate analyses for those reduced ejection fraction EF ; <40%) versus preserved (≥50%). Methods and Results The ‐ is a prospective longitudinal study. Participants symptomatic were recruited from 46 secondary care centers 3 Asian regions: South (India), Southeast...
Importance Discontinuation of oral anticoagulant treatment is common in clinical practice due to concerns about bleeding, even for procedures with minimal low bleeding risk. Objective To explore whether perioperative discontinuation factor Xa inhibitors associated major and thromboembolic events patients atrial fibrillation (AF) undergoing Design, Setting, Participants This prospective, multicenter, single-arm cohort study conducted Korea included AF who planned undergo a procedure risk...
Background Proteinuria is a risk factor for cardiovascular events, but its prognostic value sudden cardiac arrest (SCA) in young individuals remains unproven. We aimed to evaluate whether proteinuria people associated with an increased of SCA. Methods and Results Individuals aged between 20 39 years who underwent health screening 2009 2012 South Korea were included (n=6 891 400). Urine protein was measured using the spot urine dipstick method. Main outcome SCA identified by International...
Importance Cardiovascular benefits of mild to moderate alcohol consumption need be validated in the context behavioral changes. The reduced among people who drink heavily across different subtypes cardiovascular disease (CVD) are unclear. Objective To investigate association between and risk major adverse events (MACEs) individuals CVD subtypes. Design, Setting, Participants This cohort study analyzed data from Korean National Health Insurance Service–Health Screening database self-reported...
Background: Pulmonary vein isolation (PVI) is effective for maintenance of sinus rhythm in 50% to 75% patients with paroxysmal atrial fibrillation, and it not uncommon require additional ablation after PVI. We prospectively evaluated the relative effectiveness 2 post-PVI strategies fibrillation. Methods Results: A total 500 (mean age, 55.7±11.0 years; 74.6% male) were randomly assigned undergo by different PVI: (1) elimination non-PV triggers (group A, n=250) or (2) stepwise substrate...
Non-vitamin K antagonist anticoagulants (NOACs) have been used to prevent thromboembolism in patients with atrial fibrillation (AF) and shown favorable clinical outcomes compared warfarin. However, off-label use of NOACs is frequent practice, its results are inconsistent. Furthermore, the quality anticoagulation available warfarin often suboptimal even inaccurate real-world data. We therefore effectiveness safety those whose anticoagulant intensity was accurately estimated. retrospectively...
Abstract The risk of having atrial fibrillation (AF) is associated with alcohol intake. However, it not clear whether sudden cardiac arrest (SCA) and ventricular arrhythmia (VA) including tachycardia, flutter, or have similar associations alcohol. We aimed to evaluate the association intake all-cause death, new-onset AF, VA, SCA using single cohort a sufficient sample size. A total 3,990,373 people without prior history VAs, was enrolled in this study based on nationwide health check-up...
Patients with heart failure (HF) experience a marked reduction in overall skeletal muscle strength and exercise capacity, which is detrimental to their prognosis. This study examined the clinical implications of handgrip (HGS) patients HF. Overall, 173 (mean age, 62 years; 81.5% male) underwent cardiac rehabilitation from 2015 2020. Baseline HGS was measured as average value (kg) for both hands using handheld dynamometer. For each patient, distance walked during 6-min walk test metabolic...
Background Elevated heart rate in patients with acute ischemic stroke is associated increased risk of mortality. Beta‐blocker therapy well known to reduce rate. Methods and Results This study was a post hoc analysis maximum rates ≥100 bpm. use, assessed on the eighth day after index stroke, categorized as persistent or nonpersistent based usage up 39 months. The primary outcome composite recurrence, myocardial infarction, mortality within first year. Long‐term mortality, secondary outcome,...
Background: Metabolic syndrome is associated with a significantly increased risk of sudden cardiac death (SCD). However, whether temporal changes in the metabolic status are SCD unknown. We aimed to determine and gamma-glutamyl transferase (ɣ-GTP), including their changes, SCD. Methods: performed nationwide population-based analysis using Korean National Health Insurance Service. People who underwent national health check-up 2009 2011 were enrolled. The influence ɣ-GTP on was evaluated....
Abstract Background Dyslipidemia measured as low-density lipoprotein (LDL)-cholesterol is an established risk factor of cardiovascular disease, which more pronounced in diabetes population. Less known about the association LDL-cholesterol level and sudden cardiac arrest (SCA) mellitus patients. This study investigated SCA Methods was based on Korean National Health Insurance Service database. Patients who received general examination from 2009 to 2012 diagnosed type 2 were analyzed. Primary...
Chronic lung disease (CLD) is one of the important underlying diseases atrial fibrillation (AF). The outcomes after radiofrequency catheter ablation AF in patients with CLD have not yet been reported. We investigated electroanatomic alterations pulmonary veins (PVs) and assessed their effect on AF.We 15 who had underwent AF. included chronic obstructive disease, a tuberculosis-destroyed lung, interstitial disease. For controls, we selected 60 sex-, age-, procedure era-matched non-CLD...
BACKGROUND AND OBJECTIVES It is crucial to understand the exact public health burden of out-of-hospital cardiac arrest (OHCA) cases; this presently unknown since sufficient episodes are not reported in registry studies. We aimed evaluate epidemiologic features and outcomes non-traumatic OHCA. METHODS During January 2008 December 2017, we enrolled 387,665 patients who had been assigned a code for sudden or undergone cardiopulmonary resuscitation emergency room using Korean National Health...
Abstract Sudden cardiac arrest (SCA) is a medical disaster for both the victim and society. Despite intrinsic limitations in management of SCA, primary prevention has been overlooked risk factors SCA are not fully understood. We aimed to evaluate whether hypertension diabetes mellitus (DM), including pre-hypertension impaired fasting glucose (IFG), associated with increased SCA. performed nationwide population-based analysis using Korean National Health Insurance Service. People who...
Hypertension is a known risk factor for sudden cardiac arrest (SCA). However, the role of temporal changes in blood pressure on SCA not fully understood. This study was conducted to determine whether increase or decrease associated with SCA. based nationwide healthcare insurance data. Individuals who underwent health check-ups 2009 and 2011 were analyzed. A total 2,801,153 individuals evaluated 8100 events during 17, 740, 420 person-years follow-up. In multivariate analysis, there linear...
Spontaneous echo-contrast (SEC) and thrombus observed in trans-esophageal echocardiography (TEE) is known as a strong surrogate marker for future risk of ischemic stroke patients with atrial fibrillation (AF) or flutter (AFL). The efficacy non-vitamin K antagonist oral anticoagulants (NOAC) compared to warfarin prevent SEC AF AFL currently unknown. who underwent direct current cardioversion (DCCV) pre-DCCV TEE evaluation from January 2014 October 2016 single center were analyzed. prevalence...
Heavy alcohol consumption is an established risk factor for atrial fibrillation (AF). However, the association between habitual changes in heavy drinkers and incident AF remains unclear. The aim of this study was to evaluate whether absolute abstinence or reduced drinking decreases drinkers.
Abstract Background Underweight imposes significant burden on cardiovascular outcomes in patients with diabetes mellitus. However, less is known about the impact of serial change body weight status measured as mass index (BMI) risk sudden cardiac arrest (SCA). This study investigated association between SCA and temporal BMI among Methods Based Korean National Health Insurance Service database, participants mellitus who underwent health examination 2009 2012 had prior data (four years ago,...
The incidence of sudden cardiac arrest (SCA) in Asians is lower than that seen Western populations, but there are few available data on the and associated etiology SCA Asians. From 2002 to 2013, patients with were analyzed using a cohort from South Korean National Health Insurance Service (NHIS) coded database. Sudden unexplained death syndrome (SUDS) was defined as cryptogenic arrest, excluding non-cardiac origin, coronary artery disease (CAD), cardiomyopathy (CM), valvular heart disease....
The regression equation of the American College Sports Medicine (ACSM) was a preferred method for estimating maximal oxygen consumption (VO2max). Recently, more precise from fitness registry and importance exercise national database (FRIEND) healthy people developed. This study compared VO2max estimated by ACSM FRIEND equations to directly measured in coronary artery disease (CAD) patients. Overall, 293 CAD patients who participated cardiac rehabilitation between June 2015 December 2018 were...
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