1.Delayed Peripheral Facial Palsy after Acute Ischemic Stroke in the Territory of Anterior Inferior Cerebellar Artery
Sung Taek HWANG ; Jin Yong LEE ; Hyunbeom LEE ; Kyung Han KIM ; Hak Young RHEE
Journal of the Korean Neurological Association 2026;44(1):54-58
A 76-year-old male presented with dizziness and disequilibrium. Magnetic resonance imaging revealed an acute ischemic stroke in the left anterior inferior cerebellar artery (AICA) territory. Three days after admission the patient developed peripheral facial palsy with no radiological exacerbation of the infarction. He was managed with antiplatelet therapy and supportive care. Both the facial palsy and initial cerebellar symptoms resolved within 1 month. This case highlights delayed facial palsy as a rare presentation of AICA infarction.
2.Antifungal Effects of Non-Thermal Atmospheric Pressure Plasma In Vitro and Ex Vivo
Hye-Jin AHN ; Jin-Woo LEE ; Woo Yeon HWANG ; Byung Su KWON ; Ki-Heon JEONG ; Min Kyung SHIN
Annals of Dermatology 2026;38(2):98-107
Background:
Non-thermal atmospheric pressure plasma (NTAP) generates reactive oxygen species, reactive nitrogen species, and ultraviolet radiation, which can inactivate microorganisms.Onychomycosis treatment is challenging, and its prognosis is poor owing to mixed infections and dermatophytosis. Although NTAP has shown in vitro antifungal effects against dermatophytes and yeast, its efficacy against non-dermatophyte molds (NDMs) and in clinical or nail model studies remains poorly understood.
Objective:
We evaluated the effects of NTAP on fungi, including NDMs, and infected nail plates.
Methods:
For the in vitro experiments, Trichophyton rubrum, Candida albicans, Aspergillus fumigatus, and Fusarium oxysporum strains were exposed to NTAP. After NTAP exposure (2,4 and 6 minutes), growth curve, cell viability, and biofilm biomass were assessed by absorbance wavelength of 600 nm, XTT assay, and crystal violet staining, respectively. For the ex vivo experiments, infected nail plates were analyzed using a scanning electron microscope.
Results:
T. rubrum and C. albicans showed greater growth inhibition with increasing NTAP exposure time, whereas A. fumigatus showed enhanced growth after 6 minutes exposure. Many fungal elements within the subungual hyperkeratosis of the ex vivo specimen were all damaged following NTAP exposure.
Conclusion
NTAP has antifungal effects on dermatophytes, yeast, and NDMs. We suggest that the intensity and time of NTAP application should be adjusted according to each strain and can be more effective when NTAP directly reaches the hyphae on the nail bed or subungual hyperkeratosis.
3.Considerations of Flow Cytometric Lymphocyte Subset Analysis in Korea Based on a Survey of Current Clinical Laboratory Practice
Mikyoung PARK ; Hyun-Woo CHOI ; Jihyang LIM ; Kyung-Hwa SHIN ; Eun-Jee OH ; Jaewoo SONG ; Kyeong-Hee KIM ; In Hwa JEONG ; Joo-Heon PARK ; Sang-Hyun HWANG ; Eun-Suk KANG
Annals of Laboratory Medicine 2026;46(2):220-225
Flow cytometric lymphocyte subset analysis (FCLSA) is essential for assessing immune status across various diseases and clinical settings. We surveyed current clinical laboratory practices related to FCLSA to establish a baseline reference for future standardization in Korea. Nine university hospitals actively performing FCLSA responded to the 22-question survey, which covered seven categories of laboratory practice. These hospitals used commercial reagent antibody kits from either Beckton Dickinson Biosciences (N = 4) or Beckman Coulter Diagnostics (N = 5). Most hospitals performed daily instrument setup and scheduled maintenance every 2–6 months. Two levels of commercial quality control materials were routinely used each day. Sample and reagent antibody volumes varied across hospitals, even when the same reagent kit was used. Acquired cell counts ranged from 5 × 10 3 to 5 × 10 4 cells, with two hospitals adjusting counts based on the cell type analyzed. Most laboratories reported percentages and general opinions; some additionally reported white blood cell and lymphocyte counts, along with lymphocyte percentages. This is the first comprehensive survey on the clinical laboratory practice of FCLSA in Korea.Standardization of FCLSA should be accelerated to ensure reliable and reproducible results.
4.Nursing management competencies among nurses in national specialized hospitals in Korea: a mixed-methods study
Journal of Korean Academy of Nursing 2026;56(2):190-205
Purpose:
This study aimed to examine nursing management competencies among nurses working in national specialized hospitals, to identify competency development needs and influencing factors, and to provide foundational data for the development of educational and competency-enhancement programs.
Methods:
A mixed-methods design was employed. Quantitative data were collected via an online survey of 162 nurses from five national specialized hospitals from January 10 to February 10, 2025, and qualitative data were obtained through in-depth interviews with 20 participants from March 7 to April 16, 2025. Quantitative data were analyzed using descriptive statistics, independent t-tests, analysis of variance, importance–performance analysis, the Borich Needs Assessment, the Locus for Focus model, and multiple regression analysis. Qualitative data were analyzed using content analysis with ATLAS.ti.
Results:
The mean performance score for nursing management competencies was 3.56±0.71 on a 5-point scale. Customer orientation received the highest score (4.03±0.78), whereas business and marketing received the lowest score (2.92±1.03). Across needs-assessment models, leadership, nursing ethics and law, quality improvement, and standard development consistently emerged as high-priority areas. In multiple regression analysis, the nursing work environment was the only factor significantly associated with nursing management competency performance (β=.33, p<.001). Qualitative content analysis corroborated these findings and identified three facilitator themes and three barrier themes.
Conclusion
Nursing management competency performance among nurses in national specialized hospitals was associated with the nursing work environment, including organizational conditions. These findings underscore the importance of organizational support and suggest that competency-based education should be redesigned to prioritize high-need competency areas. This study provides a foundation for developing educational interventions and programs to enhance nursing management capacity.
5.Effects of Structured Psychodrama for Long-Term Psychiatric Inpatients: A Pilot Study
Hyun Seok SO ; Hee Kyung YUN ; Kyungmin KANG ; Hyunjun HWANG ; Yu Sang LEE
Korean Journal of Schizophrenia Research 2026;29(1):9-16
Objectives:
This pilot study examined the preliminary findings associated with a cognitive-load-controlled structured psychodrama program on affect, fear of negative evaluation, and general psychopathology in long-term psychiatric inpatients, most of whom had schizophrenia spectrum disorders.
Methods:
A single-group pre-post design was used. A total of 125 stabilized long-term psychiatric inpatients participated in a 25-session structured psychodrama program. To enhance measurement validity in consideration of participants’ cognitive characteristics, self-report measures were administered in small-group sessions with individualized explanation. Primary outcomes (Positive and Negative Affect Schedule [PANAS], Affect Balance Scale [ABS], and Brief Fear of Negative Evaluation [BFNE]) were assessed in 125 participants, and the secondary outcome (Brief Psychiatric Rating Scale [BPRS]) was assessed in a randomly selected subgroup of 53 participants.
Results:
After the intervention, positive affect significantly increased, whereas negative affect significantly decreased on both the PANAS and ABS (all p<0.001). BFNE scores significantly decreased from 43.14 to 28.94 (p<0.001). Total BPRS scores also significantly decreased from 47.49 to 34.76 (p<0.001), with notable improvements in depressive mood, anxiety, tension, somatic concern, and emotional withdrawal.
Conclusion
A structured psychodrama program may be a feasible and potentially beneficial psychosocial intervention for long-term psychiatric inpatients. However, given the single-group pre-post design and other methodological limitations, the magnitude of the observed changes should be interpreted cautiously. These findings may serve as preliminary data for future controlled trials.
6.Interposition of retrohepatic inferior vena cava and portal vein using iliac vein homograft in living donor liver transplantation for a pediatric patient with advanced hepatoblastoma
Jung-Man NAMGOONG ; Shin HWANG ; Gil-Chun PARK ; Hyunhee KWON ; Suhyeon HA ; Kyung Mo KIM ; Seak Hee OH
Annals of Liver Transplantation 2026;6(1):56-62
Replacing the retrohepatic inferior vena cava (IVC) following concurrent resection of the IVC and tumor-involved liver is an emerging surgical technique in living donor liver transplantation (LDLT), particularly for managing hepatocellular carcinomas near the IVC. This approach makes the extent of hepatectomy in LDLT comparable to that of deceased donor liver transplantation. We report a pediatric LDLT case involving IVC and portal vein (PV) replacement with an iliac vein homograft to treat advanced hepatoblastomas. The patient was a 24-month-old girl weighing 9.1 kg, presenting with large, multiple hepatoblastomas infiltrating the retrohepatic IVC and PV. After a 2-week waiting period, a cold-stored iliac vein graft was obtained, and the transplantation was performed using a left lateral section graft from her father.A 4-cm iliac vein homograft was anastomosed between the suprahepatic and suprarenal IVC stumps. The liver graft was implanted following standard procedures, with the PV reconstructed via a telescope-shaped anastomosis using the vein graft interposition. The patient experienced an uncomplicated recovery and is currently receiving scheduled adjuvant chemotherapy. In conclusion, IVC and PV replacement with vein homografts represents a feasible and effective surgical strategy for pediatric LDLT patients with advanced liver malignancies involving vascular invasion.
7.Three-year outcomes of a prospective, multicenter study of rotational atherectomy with antirestenotic therapy for infrainguinal arterial disease
Sungsin CHO ; Hyung-Kee KIM ; Woo-Sung YUN ; Ui Jun PARK ; Sang Su LEE ; Jaehoon LEE ; Hong-Pil HWANG ; Jin Hyun JOH
Annals of Surgical Treatment and Research 2026;110(3):180-187
Purpose:
Atherosclerotic plaques in peripheral arterial disease (PAD) include fatty, mixed, and calcified types. Plaque burden is significantly associated with restenosis, reintervention, and amputation-free survival. Rotational and aspirational atherectomy (RAA) may effectively remove such plaques. This study aimed to evaluate long-term outcomes of RAA for infrainguinal PAD.
Methods:
Patients with infrainguinal lesions underwent revascularization using the Jetstream Atherectomy System (Boston Scientific). This 60-month extension assessed primary patency rate (PPR) and clinically driven target lesion revascularization (CD-TLR). Kaplan-Meier curves were used for survival analysis; P < 0.05 was considered statistically significant.
Results:
A total of 150 patients (mean age, 70.9 years; male, 86.0%; 65.4% with diabetes) were enrolled. The mean lesion length was 15.8 cm, with 74.0% occlusions and 47.3% severe calcification. Lesions were sclerotic (72.4%), thrombosclerotic (13.4%), thrombotic (9.4%), or in-stent (4.7%). A drug-coated balloon (DCB) was used in 85.5% of cases. PPR at 1, 3, and 5 years was 84.1%, 68.1%, and 58.5%, respectively. CD-TLR rates were 93.0%, 81.5%, and 67.4%, respectively. The benefit of DCB was sustained through 3 years but attenuated thereafter, highlighting the need for extended follow-up in infrainguinal interventions.
Conclusion
RAA demonstrated durable 5-year patency and safety outcomes. Device type, DCB use, lesion morphology, and calcium grade did not significantly influence long-term results. Lesion complexity remains the primary predictor of clinical outcome. Despite the complexity of infrainguinal lesions, the use of RAA demonstrated sustained patency through 3 years, with lesion complexity (particularly TASC classification) emerging as the most critical predictor of long-term success.
8.Erratum to "Glycogen Phosphorylase Inhibitor Promotes Hair Growth via Protecting from Oxidative-Stress and Regulating Glycogen Breakdown in Human Hair follicles" Biomol Ther 32(5), 640-646 (2024)
Bomi PARK ; Daeun KIM ; Hairu ZHAO ; SoonRe KIM ; Byung Cheol PARK ; Sanghwa LEE ; Yurim LEE ; Hee Dong PARK ; Dongchul LIM ; Sunyoung RYU ; Jae Sung HWANG
Biomolecules & Therapeutics 2026;34(3):726-726
9.Associated factors of osteoporosis and the impact of osteoporosis on all-cause mortality in incident hemodialysis older patients
Seunghye LEE ; Yoomee KANG ; Yu Ah HONG ; Sung Joon SHIN ; Soon Hyo KWON ; Sungjin CHUNG ; Young Youl HYUN ; Sang Heon SONG ; Jae Won YANG ; Won Min HWANG ; Jang-Hee CHO ; Kyung Don YOO ; In O SUN ; Gang-Jee KO ; Byung Chul YU ; Hyunsuk KIM ; Woo Yeong PARK ; Tae Won LEE ; Dong Jun PARK ; Eunjin BAE ;
Kidney Research and Clinical Practice 2026;45(1):110-119
Background:
With the aging population and advancements in medical care worldwide, the number of older patients with end-stage kidney disease continues to rise. This study aimed to identify factors associated with osteoporosis and osteopenia in older patients undergoing incident hemodialysis and assess their impact on mortality.
Methods:
We analyzed a large multicenter retrospective cohort of patients aged ≥70 years undergoing incident hemodialysis to identify factors associated with osteoporosis using logistic regression analysis and to assess the association of death with osteoporosis and osteopenia using Cox multivariable analysis.
Results:
Among 710 patients, 39.0% and 19.6% had osteoporosis and osteopenia, respectively. Osteoporosis was significantly associated with female sex, a history of fractures, and the absence of phosphate binder use. During a median follow-up of 36.8 months, 348 participants (58.8%) died. Mortality rates were the highest in the osteoporosis group (79.8%), followed by the osteopenia (77.2%) and normal bone mineral density (BMD) groups (35.2%). Cox regression analysis revealed that even after adjusting for covariates, the osteoporosis group was significantly associated with a higher mortality risk than the normal BMD group. Osteoporosis at the start of hemodialysis was significantly associated with higher mortality.
Conclusion
We should consider the importance of bone health in patients undergoing incident hemodialysis and pay attention to the use of phosphate binders and fracture prevention.
10.Impact of obesity on renal function in elderly Korean adults: a national population-based cohort study
Jihyun YANG ; Hui Seung LEE ; Chi-Yeon LIM ; Hyunsuk KIM ; Sungjin CHUNG ; Soon Hyo KWON ; Jang-Hee CHO ; Kyung Don YOO ; Woo Yeong PARK ; In O SUN ; Byung Chul YU ; Gang-Jee KO ; Jae Won YANG ; Won Min HWANG ; Sang Heon SONG ; Sung Joon SHIN ; Yu Ah HONG ; Eunjin BAE ; Young Youl HYUN
Kidney Research and Clinical Practice 2026;45(1):65-76
Background:
Obesity is a well-known risk factor for chronic kidney disease and its progression. However, the impact of obesity on the renal function of the elderly population is uncertain. We investigated the association between obesity and renal outcomes in the elderly.
Methods:
We analyzed 130,504 participants from the Korean National Health Insurance Service-Senior cohort. Obesity was classified according to body mass index (BMI), sex-specific waist circumference (WC), and the presence of metabolic syndrome. The primary outcome was renal function decline, defined as a decline in the estimated glomerular filtration rate (eGFR) of at least 50% from baseline or new-onset end-stage renal disease.
Results:
During a follow-up period of 559,531.1 person-years (median, 4.3 years), 2,486 participants (19.0%; incidence rate of 4.44 per 1,000 person-years) showed renal function decline. A multivariate Cox proportional hazards model revealed that BMI/WC was not associated with renal function decline. However, the group with metabolic syndrome had a significantly increased risk of renal function decline compared to the group without metabolic syndrome (adjusted hazard ratio [HR], 1.24; 95% confidence interval [CI], 1.13–1.36). Compared with the non-metabolic syndrome group, the adjusted HRs (95% CI) for participants with one through five components were 0.96 (0.84–1.11), 1.10 (0.96–1.27), 1.24 (1.06–1.45), 1.37 (1.12–1.66), and 1.99 (1.42–2.79), respectively (p for trend < 0.001).
Conclusion
In elderly Korean adults, metabolic syndrome and the number of its components were associated with a higher risk of renal function decline, but BMI or WC was not significant.

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