Risk Groups of Developing Active Tuberculosis in Liver Transplant Recipients in a Tuberculosis Endemic Area: Risk Stratification by Chest Image and Interferon Gamma Release Assay.

Objectives: We implemented a stratified risk analysis to predict the development of active tuberculosis (TB) in liver transplantation (LT) recipients based on IGRA and chest images in a TB-endemic area.

Methods: In this retrospective cohort study, LT recipients who tested for IGRA between May 2008 and December 2017 were included. Chest images compatible with old TB lesions were considered as positive images.

Prognostic Factors of Severe Fever with Thrombocytopenia Syndrome in South Korea.

Severe fever with thrombocytopenia syndrome (SFTS), a tick-borne infectious disease, is difficult to differentiate from other common febrile diseases. Clinically distinctive features and climate variates associated with tick growth can be useful predictors for SFTS. This retrospective study (2013-2019) demonstrated the role of climatic factors as predictors of SFTS and developed a clinical scoring system for SFTS using climate variables and clinical characteristics.

A case of gonococcal meningitis caused by Neisseria gonorrhoeae MLST ST7363 in a healthy young adult.

A 37-year-old healthy man was admitted with fever, skin rash, migratory arthralgia, and headache without preceding urogenital symptoms. Sexual contact history and positive CSF culture for Neisseria gonorrhoeae using BacT/Alert blood culture bottles were diagnostic for gonococcal meningitis. Multilocus sequence typing of this isolate showed sequence type (ST) 7363, the most predominant ST among ceftriaxone-resistant strains.

Screening for Atrial Fibrillation Using a Smartphone-Based Electrocardiogram in Korean Elderly.

Atrial fibrillation (AF) is responsible for 10-20% of cerebral infarctions. Several mobile devices have been developed to screen for AF and studies of AF screening have been conducted in several countries to evaluate the applicability of these mobile devices. In this tradition, we conducted a community-based AF screening using an automated single-lead electrocardiogram (SL-ECG).

Invasive Pneumococcal Disease Caused by Non-Vaccine Type Multidrug-Resistant Transmitted by Close Contact in a Healthy Adult.

The incidence of vaccine-type carriage and disease have declined in vaccinated children as well as in unvaccinated children and adults. However, diseases caused by non-vaccine type (NVT) are increasing. In this study, we report an invasive pneumococcal disease (IPD) caused by NVT multidrug-resistant (MDR) transmitted from a vaccinated infant to an unvaccinated healthy woman, and the clinical characteristics of this serotype.

Turnover Intention and Its Related Factors of Employed Doctors in Korea.

Employment turnover among doctors at healthcare facilities negatively influences healthcare provision, facility management, and staffing. To support institutional and policy change, turnover intentions and its related factors of employed doctors were evaluated with 2016 Korean Physician Survey ( = 2719) in Korea. About 30.

Changes in Serotype of After the Introduction of the 13-Valent Pneumococcal Vaccine in a Homogenous Population on Jeju Island.

We compared the serotypes of between the pre-pneumococcal conjugate vaccine (PCV)13 era and post-PCV13 era among homogenous inhabitants of an isolated South Korean island. A total of 325 strains were isolated. In the pre-PCV13 era, 19A/F, 15A/F, 19B, and 23A serotypes were identified.

Inappropriate empirical antibiotic therapy does not adversely affect the clinical outcomes of patients with acute pyelonephritis caused by extended-spectrum β-lactamase-producing Enterobacteriales.

Extended-spectrum β-lactamase-producing Enterobacteriales (ESBL-PE) are often associated with inappropriate empirical therapy (IAT). The aim of this study was to investigate whether IAT of acute pyelonephritis (APN) caused by ESBL-PE is related to adverse outcomes. A retrospective cohort study was performed at a tertiary-care hospital from 2014 through 2016.

Association of serum vitamin D and parathyroid hormone with subclinical atherosclerotic phenotypes: The Dong-gu Study.

Background: Although previous studies reported an association between serum vitamin D and parathyroid hormone (PTH) with carotid atherosclerosis or arterial stiffness, these were inconsistent. We examined the independent association between serum vitamin D and PTH with multiple subclinical markers of atherosclerosis.

Methods: A total of 8,217 subjects who participated in the Dong-gu Study in Korea were included in the final analysis.

Association between Serum 25-hydroxyvitamin D Levels and Type 2 Diabetes in Korean Adults.

Previous studies have suggested that a vitamin D deficiency increases the risk of type 2 diabetes. This study evaluated the association between serum vitamin D levels and type 2 diabetes in Korean adults. This study included 9,014 subjects (3,600 males and 5,414 females) aged ≥50 years who participated in the Dong-gu Study.

Association between Vitamin D Status and Risk of Peripheral Arterial Disease: The Dong-gu Study.

Low levels of vitamin D have been associated with increased cardiovascular disease risk. However, few studies have evaluated the association between vitamin D status and peripheral arterial disease (PAD). We therefore aimed to investigate whether low 25-hydroxyvitamin D (25(OH)D) levels were associated with increased risk of PAD in the Korean population.

Association of APOE Genotype with Bone Mineral Density in Men and Women: The Dong-gu and Namwon Studies.

Many studies have investigated relationships between APOE genotype and bone mineral density (BMD). However, the results of these studies have been inconsistent. Few studies have been carried out in Asian populations.

Highly efficient blue light-emitting materials based on arylamine substituted DPVBi derivatives.

A series of arylamine substituted DPVBi derivatives (1-4) were synthesized via the Horner-Wadsworth-Emmons reaction. Their electroluminescent properties were examined by fabricating a multilayer OLED device with the following structure: ITO/DNTPD (40 nm)/NPB (20 nm)/2% DPVBi derivatives (1-4) doped in MADN (20 nm)/Alq3 (40 nm)/Liq (1.0 nm)/Al.