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Cardiovascular Research Using the Korean National Health Information Database

Choi EK

The Korean National Health Information Database (NHID) contains nationwide claims data, including sociodemographic data, health care utilization, health screening data, and healthcare provider information. To compensate for the limitations of...
Clinical Course and Outcomes of 3,060 Patients with Coronavirus Disease 2019 in Korea, January–May 2020

Sung HK, Kim JY, Heo J, Seo H, Jang Ys, Kim H, Koh BR, Jo N, Oh HS, Baek YM, Park KH, Shon JA, Kim MC, Kim JH, Chang HH, Park Y, Kang YM, Lee DH, Oh DH, Park HJ, Song KH, Lee EK, Jeong H, Lee JY, Ko JY, Choi J, Ryu EH, Chung Kh, Oh Md, The Korea National Committee for Clinical Management of COVID-19

Background: The fatality rate of patients with coronavirus disease 2019 (COVID-19) varies among countries owing to demographics, patient comorbidities, surge capacity of healthcare systems, and the quality of medical care....
The Clinical Course of Tuberculous Pericarditis in Immunocompetent Hosts Based on Serial Echocardiography

Kim MS, Chang SA, Kim EK, Choi JO, Park SJ, Lee SC, Park SW, Oh JK

Background and Objectives: In East Asia, tuberculous pericarditis still occurs in immunocompetent patients. We aimed to investigate clinical course of tuberculous pericarditis and the trends of echocardiographic parameters for constrictive...
Econazole Induces p53-Dependent Apoptosis and Decreases Metastasis Ability in Gastric Cancer Cells

Choi EK, Park EJ, Phan TT, Kim HD, Hoe KL, Kim DU

Econazole, a potent broad-spectrum antifungal agent and a Ca2+ channel antagonist, induces cytotoxicity in leukemia cells and is used for the treatment of skin infections. However, little is known about...
Melatonin in the colon modulates intestinal microbiota in response to stress and sleep deprivation

Park YS, Kim SH, Park JW, Kho Y, Seok PR, Shin JH, Choi YJ, Jun JH, Jung HC, Kim EK

Background/Aims: Stress is closely related to the deterioration of digestive disease. Melatonin has potent anti-inflammatory properties. The objective of this study was to determine the effect of water stress (WS)...
Selecting coronavirus disease 2019 patients with negligible risk of progression: early experience from non-hospital isolation facility in Korea

Choe PG, Kang EK, Lee SY, Oh B, Im D, Lee HY, Jung H, Kang CK, Kim MS, Park WB, Choi EH, Cho B, Oh Md, Kim NJ

Background/Aims: As the novel coronavirus (coronavirus disease 2019 [COVID-19]) outbreak progresses rapidly, staying home is recommended for suspected patients; however, the safety of this recommendation is uncertain. In Korea, non-hospital...
Prognostic Value of Dynamic Contrast-Enhanced MRI-Derived Pharmacokinetic Variables in Glioblastoma Patients: Analysis of Contrast-Enhancing Lesions and Non-Enhancing T2 High-Signal Intensity Lesions

Kang Y, Hong EK, Rhim JH, Yoo RE, Kang KM, Yun TJ, Kim JH, Sohn CH, Park SW, Choi SH

Objective: To evaluate pharmacokinetic variables from contrast-enhancing lesions (CELs) and non-enhancing T2 high signal intensity lesions (NE-T2HSILs) on dynamic contrast-enhanced (DCE) magnetic resonance (MR) imaging for predicting progression-free survival (PFS)...
Seasonal Variations and Associated Factors of Gout Attacks: a Prospective Multicenter Study in Korea

Choi HJ, Moon KW, Kim HO, Lee YA, Hong SJ, Jung JY, Kim HA, Suh CH, Ha YJ, Kim IJ, Lee J, Park EK, Lee SG, Seo MR, Baek HJ, Choi ST, Song JS

Background: We purposed to evaluate the seasonality and associated factors of the incidence of gout attacks in Korea. Methods: We prospectively enrolled patients with gout attacks who were treated at nine...
Surgical impact on anxiety of patients with breast cancer: 12-month follow-up prospective longitudinal study

Kim J, Cho J, Lee SK, Choi EK, Kim IR, Lee JE, Kim SW, Nam SJ

Purpose: Breast cancer diagnosis and treatment often produce stress in patients. Anxiety is one of the most prevalent psychological symptoms perceived by breast cancer patients. This study aims to evaluate...
Continuous quality improvement program and its results of Korean Society for Cytopathology

Choi YD, Oh HK, Kim SJ, Kim KH, Lee YK, Kim BS, Jang EJ, Choi YJ, Han EK, Kim DH, Choi Y, Jung CK, Kim SN, Min KW, Yoon SJ, Lee HK, Choi KU, Yoon HK

Background: Since 1995, the Korean Society for Cytopathology has overseen the Continuous Quality Improvement program for cytopathology laboratories. The Committee of Quality Improvement has carried out an annual survey of...
Suggestions for Specialization and Enhancing Capacity in National Blood Services

Kim HO, Cha YJ, Park Q, Choi EK, Lim YA, Seo DH, Hwang YS

Blood is an essential medical resource for treating diseases and trauma of people, but a limited biological resource for which no artificial production is possible. Therefore, systematic and rational management...
LGMD2E with a novel nonsense variantin SGCB gene: a case of LGMD2E with anovel variant

La YK, Oh EK, Lyou HJ, Hong JM, Choi YC

Sarcoglycanopathies are a rare group of autosomal recessive limb-girdle muscular dystrophies (LGMDs) caused by genetic variants in α-, β-, γ-, or δ-sarcoglycan that maintain membrane integrity and contribute to molecular signal processing....
Recurrence of Breast Carcinoma as Paget's Disease of the Skin along the Core Needle Biopsy Tract after Skin-Sparing Mastectomy

Choi S, Kim EK, Kong J, Gong G, Shin HJ, Lee YJ, Son BH, Ahn SH, Lee JW

We report a case of recurrence as Paget's disease at the core needle biopsy (CNB) entry site in a patient with microinvasive ductal carcinoma who underwent nipple-areola-skin sparing mastectomy (NASSM)...
Quantitative analysis of the effect of fraction ofinspired oxygen on peripheral oxygen saturation inhealthy volunteers

Kang BJ, Kim M, Bang JY, Lee EK, Choi BM, Noh GJ

Background: The international organization for standardization (ISO) 80601-2-61 dictates that the accuracy of a pulse oximeter should be assessed by a controlled desaturation study. We aimed to characterize the relationship between the...
The emerging role of myeloid-derived suppressor cells in radiotherapy

Kang C, Jeong SY, Song SY, Choi EK

Radiotherapy (RT) has been used for decades as one of the main treatment modalities for cancer patients. The therapeutic effect of RT has been primarily ascribed to DNA damage leading...
Effects of some commercial calamansi-containing beverages on the enamel surface

Kim EK, Park HR, Chung KY, Choi CH, Jeong SS

OBJECTIVES: The aim of this study was to investigate the effects of some commercial calamansicontaining beverages on the sound surface of bovine teeth as well as the dental erosion inhibitory...
Risk factors for BiPAP failure as an initial management approach in moderate to late preterm infants with respiratory distress

Son H, Choi EK, Park KH, Shin JH, Choi BM

Development of Sound Field Audiometry System for Small Audiometric Booths and Comparison of Its Equivalence With Traditional System

Jung EK, Choi YM, Kim EJ, Lee S, Cho HH

Objectives. Sound field (SF) audiometry tests are usually conducted in audiometric booths measuring greater than 2×2 m in size. However, most private ENT clinics carry about 1×1-m-sized audiometric booths, making...
Current Anticoagulant Usage Patterns and Determinants in Korean Patients with Nonvalvular Atrial Fibrillation

Ha HS, Kim J, Lee YS, Kim TH, Lee JM, Park J, Park JK, Kang KW, Shim J, Uhm JS, Park HW, Cha MJ, Choi EK, Kim J, Kim JB, Kim C, Joung B

PURPOSE: Stroke prevention in patients with atrial fibrillation (AF) is influenced by many factors. Using a contemporary registry, we evaluated variables associated with the use of warfarin or direct oral...
A prospective survey of the persistence of warfarin or NOAC in nonvalvular atrial fibrillation: a COmparison study of Drugs for symptom control and complication prEvention of Atrial Fibrillation (CODE-AF)

Kim H, Lee YS, Kim TH, Cha MJ, Lee JM, Park J, Park JK, Kang KW, Shim J, Uhm JS, Park HW, Choi EK, Kim JB, Kim C, Kim J, Joung B

Background/Aims: Efforts to reduce stroke in patients with atrial fibrillation (AF) have focused on increasing physician adherence to oral anticoagulant (OAC) guidelines; however, the high early discontinuation rate of vitamin...

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