Ho-Joong Youn

Wook-Sung Chung18
Yong-Seog Oh13
Chul-Soo Park13
18Wook-Sung Chung
13Yong-Seog Oh
13Chul-Soo Park
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Atrial fibrillation (AF) is most common arrhythmia and its prevalence appears to be increasing as the population ages. Echocardiography can play a key role in risk stratification and management of patients with AF. Transthoracic echocardiography allows rapid and comprehensive assessment of cardiac anatomical structure and function. Pulmonary vein flow(More)
BACKGROUND AND OBJECTIVES We aimed to assess the usefulness of a threshold-based, 3-dimensional (3D) segmentation in comparison with the traditional 2-dimensional (2D) short axis-based method for measurement of epicardial fat volume with 64-slice multidetector computed tomography (MDCT). SUBJECTS AND METHODS One hundred patients (52 males; mean age,(More)
BACKGROUND Studies on factors which may predict the risk of diabetes are scarce. This prospective cohort study was conducted to determine the association between adiponectin and type 2 diabetes among Korean men and women. METHODS A total of 42,845 participants who visited one of seven health examination centers located in Seoul and Gyeonggi province,(More)
Previous observations suggest that Bis, a Bcl-2-binding protein, may play a role the neuronal and glial differentiation in vivo. To examine this further, we investigated Bis expression during the in vitro differentiation of P19 embryonic carcinoma cells induced by retinoic acid (RA). Western blotting and RT-PCR assays showed that Bis expression was(More)
PURPOSE The effect of radiofrequency catheter ablation (RFCA) on left atrial (LA) volume and function in patients with paroxysmal atrial fibrillation (PAF) has not been extensively studied. The aim of this study was to evaluate the long-term impact of RFCA on LA volume and function in patients with PAF. MATERIALS AND METHODS A total of 90 patients with(More)
BACKGROUND AND OBJECTIVES The purpose of this study was to investigate 1) the beneficial effect of bosentan treatment (125 mg twice daily) on exercise capacity and echocardiographic variables and 2) the profiles and frequency of adverse events in Korean patients with World Health Organization (WHO) class III or IV pulmonary artery hypertension (PAH). (More)
OBJECTIVE Diastolic dysfunction is associated with increased arterial stiffness in patients with hypertension. However, the role of arterial stiffness in diastolic dysfunction in subjects without hypertension has not been fully established. MATERIALS AND METHODS A total of 287 subjects (male:female ratio 121:166, mean age 53.0±14.4 years) without(More)
BACKGROUND AND OBJECTIVES It is widely known that both bone loss and vascular calcification are age-related processes. The purpose of this study was to investigate the relationship between coronary artery calcium (CAC) score or bone mineral density (BMD) with age and whether there is a gender difference factoring in the two conditions among healthy(More)
Stress-induced cardiomyopathy is a unique reversible cardiovascular disease precipitated by acute emotional or physical stress. It is associated with a high prevalence of chronic anxiety disorder that precedes the onset of cardiomyopathy, as well as comorbid cardiovascular risk factors that are similar to the ST segment elevation of myocardial infarction. A(More)