1.Current Clinical Perspectives on Rosacea Management: Insights From a Korean Multicenter Expert Opinion Survey
Bo Ri KIM ; Sejin OH ; Ju Hee HAN ; Jimyung SEO ; Hyun-Min SEO ; Soon-Hyo KWON ; Hoon CHOI ; Jung U SHIN ; Jae We CHO ; Boncheol Leo GOO ; Jung-Im NA ; Dong Hun LEE ; Chun Pill CHOI ; HaeWoong LEE ; Joo Yeon KO ; Hwa Jung RYU ; Nark-Kyoung RHO ; Hyunjo KIM ; Ga-Young LEE ; Jong Hee LEE ; Nala SHIN ; Sang Ju LEE ; Suk Bae SEO ; Geun Soo LEE ; Hei Sung KIM ; Chang-Hun HUH
Annals of Dermatology 2026;38(1):42-50
Background:
Rosacea is a chronic inflammatory skin disorder characterized by erythema, papules, ocular symptoms, and heightened sensitivity. Patients with neurogenic symptoms such as burning or stinging remain particularly difficult to manage. Current guidelines often underrepresent energy-based devices (EBDs), pigmentary sequelae, psychosocial burden, and ocular comorbidities.
Objective:
To examine Korean dermatologists’ expert perspectives on rosacea management, focusing on skin sensitivity, neurogenic symptoms, pigmentary changes, psychosocial impact, ocular involvement, and EBD use.
Methods:
A web-based, 29-item survey was administered to 25 board-certified Korean dermatologists (May–June 2025). Quantitative and qualitative responses were analyzed.
Results:
Erythematotelangiectatic and papulopustular phenotypes with sensitivity skin predominated. EBDs (pulsed dye laser, intense pulsed light) were frequently used but limited by cost and sensitivity issues. Neurogenic symptoms were recognized but rarely treated with neuromodulators. Post-inflammatory hyperpigmentation was infrequent, yet monitoring was inconsistent.Psychosocial and ocular aspects were acknowledged but seldomly systematically addressed.Respondents expressed interest in emerging adjunctive treatments such as cold plasma, skin boosters, and holistic care approaches.
Conclusion
Korean dermatologists adopt individualized strategies for rosacea, yet practice gaps remain regarding neurogenic symptoms, pigmentary complications, and psychosocial and ocular comorbidities. Findings support the need for updated multidisciplinary, phenotype-driven guidelines aligned with real-world practice.
2.Peak and Trough Concentration Ranges of Factor Xa Inhibitors for Preventing Thromboembolic Stroke in Korean Patients with Non-valvular Atrial Fibrillation
Jong-Sung PARK ; Kyung Hee LIM ; Dae-Hyun KIM ; Kwang-Min LEE ; Kwang-Sook WOO ; Jin-Yeong HAN
Annals of Laboratory Medicine 2026;46(1):32-40
Background:
Current guidelines recommend factor IIa- or Xa-specific inhibitors over warfarin analogs for preventing thromboembolic stroke in patients with atrial fibrillation (AF).However, their plasma concentrations in Korean patients are not well understood.
Methods:
We conducted a single-center laboratory study to determine the distribution ranges of peak and trough concentrations of three factor Xa inhibitors (apixaban, edoxaban, and rivaroxaban) prescribed for preventing strokes in patients with AF. Patients receiving one of these drugs and undergoing blood specimen collection for laboratory tests were screened. Blood specimens were obtained from patients who had adhered to the prescribed drug regimen consistently for at least 1 week. Drug plasma concentrations were measured using heparin liquid-reagent technology-based anti-Xa chromogenic assays.
Results:
We selected 459 patients who were taking standard or on-label-reduced doses of apixaban (N = 252), edoxaban (N = 182), or rivaroxaban (N = 25). The 5th–95th percentile ranges of the peak concentrations were 84–414 ng/mL (apixaban), 72–424 ng/mL (edoxaban), and 97–517 ng/mL (rivaroxaban). The respective 5th–95th percentile ranges of the trough concentrations were 44–237 ng/mL, 23–93 ng/mL, and 13–219 ng/mL. Approximately 19.6% (apixaban), 33.3% (edoxaban), and 64.0% (rivaroxaban) of patients in each group had peak concentrations out of the predicted distribution ranges based on pharmacokinetic data. Approximately 7.3%, 52.8%, and 8.3% of patients had trough concentrations out of the predicted distribution ranges.
Conclusions
A considerable proportion of Korean patients with AF taking factor Xa inhibitors may require population-specific reference ranges to guide therapeutic monitoring.
3.Association between relative handgrip strength and glycemic control among male automobile manufacturing workers using vibration tools in South Korea
Dong-Jae SEO ; Hyun Joong KIM ; Yongjin KIM ; Jaewon MUN ; Jong-Han LEEM ; Shin-Goo PARK ; Dong-Wook LEE ; Hwan-Cheol KIM
Annals of Occupational and Environmental Medicine 2026;38(1):e14-
Background:
Although the association between handgrip strength and glycemic control has been reported, studies conducted exclusively within specific occupational groups remain limited. To explore the association between handgrip strength and metabolic health in industrial settings, this study examined the relationship between relative handgrip strength and glycated hemoglobin (HbA1c) among male automobile manufacturing workers using vibration tools in South Korea.
Methods:
Using 66,212 occupational health examination records collected at Inha University Hospital between January 2024 and April 2025, a total of 3,365 workers with HbA1c and handgrip strength measurements were identified. After excluding duplicates (n = 1,536), female workers (n = 2), and records without Hb and estimated glomerular filtration rate, 1,823 male participants were included in the final analysis. Relative handgrip strength was calculated as the maximum value of bilateral grip strength divided by body mass index. Multiple linear regression analyses were conducted to assess the association between relative handgrip strength and HbA1c, adjusting for age, smoking status, alcohol consumption, current hypertension, current dyslipidemia, current hypoglycemic-agents use, family diabetes history, leisure-time physical activity, and resistance exercise.
Results:
Relative handgrip strength was inversely associated with HbA1c levels (B: –0.060; 95% confidence interval [CI]: −0.081 to −0.039; p < 0.001). The association was strongest among normoglycemic participants (B: −0.185; 95% CI: −0.305 to −0.065; p = 0.003). Effect size was reduced but significantly associated among individuals with prediabetes (B: −0.115; 95% CI: −0.180 to −0.050; p < 0.001) and further attenuated to a borderline significance in individuals with diabetes (B: −0.023; 95% CI: −0.050 to 0.003; p = 0.082). These findings indicate that greater muscle strength relative to body size is related to better glycemic control.
Conclusions
Handgrip strength was associated with HbA1c levels in industrial workers. This study suggests that handgrip strength may provide complementary information on metabolic health in occupational settings.
4.Association between working ≥10 hours per day and satisfaction with work environment among wage workers in Korea: a cross-sectional study using data from the 7th Korean Working Conditions Survey
Rae-Yun KIM ; Dong-Woo KIM ; Yoon-Soo JANG ; Na-Rae LEE ; June-Hee LEE ; Kyung-Jae LEE
Annals of Occupational and Environmental Medicine 2026;38(1):e9-
Background:
Long working hours have been associated with adverse physical and mental health outcomes; however, evidence regarding their relationship with satisfaction with work environment remains limited, particularly when long working hours are defined using a specific daily threshold. This study examined the association between working ≥10 hours per day and satisfaction with work environment among Korean wage workers, focusing on the cumulative number of such workdays per month.
Methods:
This cross-sectional study analyzed data from the 7th Korean Working Conditions Survey. A total of 24,269 wage workers aged ≥18 years were included after excluding self-employed workers, unpaid family workers, shift workers, and respondents with missing data. Working ≥10 hours per day was categorized as 0, 1–9, and ≥10 days per month. Satisfaction with work environment was categorized as satisfied or dissatisfied. Multiple logistic regression analyses were conducted to estimate odds ratios (ORs) and 95% confidence intervals (CIs) for dissatisfaction with work environment according to the number of long working days, adjusting for demographic and occupational characteristics.
Results:
Compared with workers who did not work ≥10 hours per day, those who worked 1–9 days and ≥10 days per month showed progressively higher levels of dissatisfaction with work environment. After adjustment for demographic and occupational factors, the odds of dissatisfaction with work environment were significantly higher among workers who worked ≥10 hours per day for 1–9 days per month (OR: 1.380; 95% CI: 1.145–1.665) and ≥10 days per month (OR: 2.106; 95% CI: 1.627–2.725), demonstrating a dose–response relationship.
Conclusions
Among the analytic sample of Korean wage workers included in this study, working ≥10 hours per day was associated with greater dissatisfaction with work environment, with a dose–response pattern according to the number of long working days per month.
5.Association between initial mental health status and glycemic control in pediatric diabetes
Jeongho HAN ; Mi YANG ; Hakyung LEE ; Dong Jun HA ; Hwa Young KIM ; Hee Jeong YOO ; Jae Hyun HAN ; Jaehyun KIM
Annals of Pediatric Endocrinology & Metabolism 2026;31(2):101-109
Purpose:
Psychiatric conditions are common in children and adolescents with diabetes and can hinder disease management. In this study, we examined whether mental health status at diagnosis predicts glycemic control at 1 year.
Methods:
We included 57 patients aged 6–18 years diagnosed with type 1 or type 2 diabetes between 2019 and 2023 at Seoul National University Bundang Hospital. Mental health was assessed within 3 months of diagnosis using the Eating Disorder Inventory-2, Children’s Depression Inventory, and Child Behavior Checklist (CBCL) for ages 6–18. Poor glycemic control was defined as glycated hemoglobin >6.5% at 1 year. Associations between screening results and glycemic control were analyzed using Fisher exact test and multivariate logistic regression.
Results:
Of the 57 patients, 32 (56.1%) had type 1 diabetes, and the mean age at diagnosis was 12.9±3.1 years; 31 (54.4%) were male. Poor glycemic control at 1 year was observed in 16 patients (28.1%). Although individual subscale positivity was not significantly associated with glycemic control, borderline somatic complaints on the CBCL were significantly associated with poor control (p=0.022). In multivariate analysis, having 2 or more positive CBCL subscales showed a trend toward association with poor glycemic control (adjusted odds ratio=21.47, p=0.054).
Conclusion
Early psychological screening, especially for somatic symptoms or multiple psychological problems, may help identify those at risk for poor glycemic control in pediatric diabetes. These findings underscore the importance of early detection and intervention in optimizing diabetes management.
6.Tumor-Associated Macrophage Infiltration and PD-L1 Expression in Gastric Cancer According to a Modified TCGA-Based Classification
Boram SONG ; Dong-Hoe KOO ; Eo Jin KIM ; In-Gu DO ; Jinah CHU ; Kyungeun KIM ; Hyebin LEE ; Min-Jung KWON ; Jung Ho PARK ; Byung Ho SON ; Chang Hak YOO ; Seoung Wan CHAE
Journal of Gastric Cancer 2026;26(2):247-259
Purpose:
Although gastric cancer (GC) exhibits significant genomic heterogeneity, the clinical implications of its immune microenvironment remain poorly understood.
Materials and Methods:
We retrospectively evaluated patients with GC who underwent gastrectomies between 2011 and 2014. The tumors were analyzed for Epstein–Barr virus (EBV), microsatellite instability-high (MSI-H), tumor-infiltrating lymphocytes (CD3), tumor-associated macrophages (CD68 and CD163), and programmed death-ligand 1 (PD-L1) expression. Tumors were classified using the modified The Cancer Genome Atlas scheme, and their clinical characteristics were compared.
Results:
A total of 567 patients were classified into EBV (6%), MSI-H (10%), chromosomal instability-like (36%), and genomically stable-like (48%) subtypes. EBV tumors exhibited the highest PD-L1 expression (85%) and immune infiltration by CD3+ T cells (86%), CD68+ macrophages (58%), and CD163+ macrophages (40%). High CD68+ macrophage tumors were associated with advanced stages and worse 5-year disease-free survival (83% vs. 95%; P<0.001);however, this association was not independently significant after adjusting for the tumor-nodemetastasis stage. PD-L1 expression did not significantly affect the survival outcomes.
Conclusions
GC subtypes have distinct immune microenvironments that influence prognosis. Our findings highlight the prognostic and therapeutic potential of immune profiling in GC.
7.Opioid-Sparing Effect of Celiac Plexus Neurolysis in Palliative Care Patients with Upper Abdominal Cancer: A Single-Center Retrospective Case Series of Thirteen Patients
Dong Hyuck KIM ; Yun-A KIM ; Tae Hyun HA ; Sang Gyu KWAK
Journal of Hospice and Palliative Care 2026;29(2):54-60
Purpose:
Whether celiac plexus neurolysis (CPN) retains opioid-sparing efficacy in palliative care patients receiving modern extended-release opioids remains uncertain after a recent randomized trial that reported no benefit. We describe fluoroscopy-guided CPN in such patients.
Methods:
Thirteen consecutive palliative care patients with unresectable or metastatic upper abdominal cancer (seven pancreatic, five hepatobiliary, one gastric) on strong opioid therapy underwent posterior fluoroscopy-guided CPN with absolute ethanol after a diagnostic lidocaine block. Daily oral morphine equivalent (OME) and Numeric Rating Scale (NRS) pain scores were recorded at baseline and 1, 2, and 4 weeks. Pain response was defined a priori as ≥30% NRS reduction.
Results:
Median age was 67 years, baseline median OME 86.5 mg/day (range, 15~215), and median NRS 6. Median OME decreased to 72, 60, and 57.5 mg/day at 1, 2, and 4 weeks (median reductions 46.5%, 26.7%, 43.5%;all P≤0.002), and median NRS improved to 3, 4, and 4 (all P≤0.001). A pain responsewas achieved in 8/13 (61.5%) at 1 week, 7/13 (53.8%) at 2 weeks, and 5/12 (41.7%) at 4weeks. Opioid-related adverse events declined numerically (nausea, 7/13→3/12; constipation, 4→2; somnolence, 2→0; all McNemar P>0.10). No procedural complication occurred(0/13).
Conclusion
CPN was followed by reduction in opioid use and pain scores, withresolution of opioid-related symptoms and no complications. Although limited by the smallsample size, these findings suggest a potential role for CPN in palliative care patients receiving extended-release opioids and warrant prospective investigation.
8.Usefulness of Charlson comorbidity index-adjusted mortality prediction tools and factors influencing mortality in intensive care unit patients: a retrospective medical record review–based study
Jai Jung LEE ; Dong Yeon KIM ; Min Ji LEE ; Ji Young KIM
Journal of Korean Academy of Nursing 2026;56(1):27-38
Purpose:
This study aimed to estimate the mortality rate in adult intensive care units (ICUs) using the Charlson comorbidity index (CCI)-adjusted Acute Physiology and Chronic Health Evaluation (APACHE) II and Simplified Acute Physiology Score (SAPS) III models, and to identify factors influencing mortality.
Methods:
This retrospective cohort study included adult patients admitted to the ICU at a tertiary hospital between June 1 and August 31, 2022. Among the 1,098 screened patients, those younger than 18 years, those discharged within 48 hours, and those with missing medical records were excluded. In total, 482 patients were analyzed using the chi-square test, independent t-test, and multivariate logistic regression. Model performance was evaluated using the c-statistic and the Hosmer-Lemeshow goodness-of-fit test.
Results:
The predictive accuracy of the mortality models was shown by c-statistic values of 0.817 for APACHE II, 0.857 for SAPS III, 0.697 for CCI, and 0.834 for CCI-adjusted APACHE II (0.834). Mechanical ventilation, cardiopulmonary cerebral resuscitation, continuous renal replacement therapy, and the presence of leukemia or lymphoma were significant predictors of mortality in adult ICU patients. Among the evaluated models, SAPS III and CCI-adjusted APACHE II demonstrated the highest predictive power.
Conclusion
The findings indicate that incorporating comorbidity indices such as the CCI with acute physiological parameters improves the accuracy of mortality prediction in ICU patients. Understanding mortality prediction models is essential for nurses to provide individualized, evidence-based, and high-quality care in adult ICUs.
9.Clinical Course of Radiographic Nonunion after Tibiotalocalcaneal Fusion using Femoral Head Allograft: An Exploratory Retrospective Case Series
Sungyoon JUNG ; Jungsin KIM ; Dajeong PAK ; Myoungjin LEE
Journal of Korean Foot and Ankle Society 2026;30(2):55-60
Purpose:
Tibiotalocalcaneal (TTC) fusion using a femoral head allograft is commonly performed for complex ankle pathologies, but radiographic nonunion is not uncommon. This paper describes the clinical course of patients with radiographic nonunion after TTC fusion and explores the clinical relevance of a possible “stable nonunion” pattern.
Materials and Methods:
Thirty-eight patients who underwent TTC fusion using femoral head allograft between 2014 and 2023 were reviewed retrospectively. Among them, 10 cases (26.3%) with radiographic nonunion were included. Nonunion was defined as the absence of osseous union at the tibiotalar or subtalar joint on plain radiographs at 6 months postoperatively. Serial follow-up radiographs were also reviewed. The clinical outcomes were assessed using the Visual Analog Scale (VAS), Foot and Ankle Ability Measure (FAAM), and RAND Short Form-36 (SF-36). This study was designed as an exploratory retrospective case series of the nonunion group.
Results:
Ten cases were identified as radiographic nonunion. Despite the persistent nonunion, the mean VAS decreased from 6.2 to 1.2 (p<0.001). Several SF-36 domains and the FAAM Activities of Daily Living score also improved. No hardware failures or reoperations were observed during follow-up.
Conclusion
Some patients with radiographic nonunion after TTC fusion using a femoral head allograft showed pain reduction and functional improvement without hardware failure or reoperation. These findings suggest that radiographic nonunion may not always indicate immediate clinical failure. Nevertheless, the results should be interpreted cautiously because of the small sample size, lack of a comparison group, and the absence of a CT-based union assessment.
10.Successful Realignment Arthrodesis using a Superconstruct Technique and Adjuvant Denosumab in Severe Midfoot Charcot Neuroarthropathy:A Case Report
Inuk KIM ; Yeo Kwon YOON ; Seung Hwan HAN ; Jin Woo LEE ; Dong Woo SHIM ; Kwang Hwan PARK
Journal of Korean Foot and Ankle Society 2026;30(1):38-42
Severe midfoot Charcot neuroarthropathy (CN) presents a significant surgical challenge because of extensive bone loss and poor bone quality. This report presents the outcome of a case treated with realignment arthrodesis using a superconstruct technique, supplemented by the postoperative use of denosumab. A patient with Eichenholtz Stage III CN (Brodsky Type 1 and 2) underwent a single-stage surgical reconstruction. Postoperatively, denosumab was administered to enhance bone stability. The 1-year and 1-month follow-up showed that the severe deformity had been successfully corrected to a stable, plantigrade foot, confirmed by radiographic and clinical evaluation.This case suggests that a combined surgical approach using a superconstruct with adjuvant denosumab can be an effective treatment for severe midfoot CN.

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