1.Recent Practice Patterns in Pediatric Myopia Control: Insights from a Nationwide Survey of South Korean Pediatric Ophthalmologists
Jeongmin KIM ; Sara KIM ; Ungsoo Samuel KIM ; Seunghee Hannah BAEK
Korean Journal of Ophthalmology 2026;40(2):141-150
Purpose:
To investigate the recent prescription patterns among South Korean pediatric ophthalmologists to control myopia progression.
Methods:
An online survey was distributed to the members of the Korean Association of Pediatric Ophthalmology and Strabismus (KAPOS) between August 22 and 31, 2023. Respondents selected treatment modalities that they prescribed to slow myopia progression. Multiple responses were allowed, and prescribing patterns were analyzed by respondents’ characteristics, including years since board certification, practice type, practice location, and average number of pediatric myopia patients seen per week.
Results:
Of 167 active members, 119 (71.3%) completed the survey, and 118 provided full responses. Most respondents practiced in Seoul or metropolitan areas (75.4%), worked in hospitals (73.7%), had >10 years of clinical experience (68.9%), and treated >20 pediatric myopia patients weekly (62.2%). With multiple responses allowed, 0.125% atropine eye drops (75.6%) were most commonly prescribed, followed by orthokeratology lenses (57.1%). When grouped into mutually exclusive categories (topical atropine only, optical interventions only, both and neither), the largest proportion of respondents (63.0%) selected both pharmacological and optical treatments. Treatment patterns did not differ by experience or location, but significant differences were observed by practice type and weekly pediatric myopia patient volume. Private practitioners more often prescribed orthokeratology, dual-focus soft contact lenses, and selected both pharmacologic and optical treatments, whereas hospital practitioners more commonly selected topical atropine alone. Those treating a higher volume of pediatric myopia patients showed a greater tendency to select both pharmacologic and optical treatments.
Conclusions
In this survey of KAPOS members, topical atropine, particularly the 0.125% commercial formulation, was the most commonly prescribed single modality for myopia control. Topical atropine and optical interventions emerged as the most common treatment strategies, particularly in private clinics. These findings indicate a trend towards more proactive and multimodal approaches to myopia control compared with earlier practice patterns in South Korea.
2.Association of Breast Tissue Composition on Preoperative Automated Breast Ultrasound With Accuracy of Cancer Multiplicity Evaluation and Recurrence-Free Survival in Patients With Early-Stage Breast Cancer
Myoung Kyoung KIM ; Haejung KIM ; Sun-Young BAEK ; Eun Young KO ; Boo-Kyung HAN ; Eun Sook KO ; Jeongmin LEE ; Nami CHOI ; Jin CHUNG ; Ji Soo CHOI
Korean Journal of Radiology 2026;27(2):97-110
Objective:
To investigate whether breast tissue composition on preoperative automated breast ultrasound (ABUS) is associated with the accuracy of cancer multiplicity evaluation and postoperative recurrence-free survival (RFS) in patients with early-stage breast cancer.
Materials and Methods:
This retrospective analysis included women with early-stage breast cancer (clinical Tis, T1–2/N0) who underwent ABUS and digital mammography (DM) between October 2019 and April 2021. Tissue composition on ABUS was assessed using the Breast Imaging Reporting and Data System background echotexture (BE) (homogeneous-fat, homogeneous-fibroglandular, or heterogeneous). In a subgroup of patients with mammographically dense breasts, the glandular tissue component (GTC) on ABUS were further stratified into high (moderate or marked) or low (minimal or mild).Multivariable logistic and Cox regression analyses were used to identify factors associated with accurate cancer multiplicity categorization (unifocal, multifocal/multicentric, or bilateral) using ABUS + DM, and with RFS, respectively.
Results:
Among 409 women (mean age ± standard deviation, 50.2 ± 8.7 years), ABUS combined with DM yielded accurate cancer multiplicity categorization in 368 patients (90.0%). Neither BE nor GTC on ABUS affected the accuracy of categorization when ABUS was combined with DM. Over a median postoperative follow-up of 3.5 years, 11 recurrences occurred. Heterogeneous BE on ABUS (hazard ratio [HR] 11.24 [95% confidence interval [CI]: 2.82–44.92]; P = 0.001), BRCA mutation (HR 15.94 [2.47–102.97]; P = 0.004), and pathologic index cancer size (HR per 1-cm increase 1.91 [1.13–3.23];P = 0.02) was independently associated with RFS. In patients with dense breasts, heterogeneous BE (HR 14.17 [95% CI:2.69–74.60]; P = 0.002) and high GTC (HR 10.32 [2.35–45.28]; P = 0.002) on ABUS, BRCA mutation (HR 24.34 [2.75– 215.06]; P = 0.004), and pathologic cancer size (HR per 1-cm increase 2.62 [1.50–4.59]; P = 0.001) was independently associated with RFS.
Conclusion
In patients with early-stage breast cancer, heterogeneous BE and high GTC on preoperative ABUS, along with larger cancer size and BRCA mutation, was associated with worse RFS. However, BE and GTC did not affect cancer multiplicity evaluation when ABUS was used in combination with DM.
3.Anticholinergic Burden and Its Impact on Cognitive Performance and Clinical Severity in Elderly Schizophrenia Patients
Jeongmin KIM ; Kayoung KIM ; Seonjin YIM ; Joohyun HAN ; Eunjin KIM ; Euncheon YANG ; Homin KIM
Korean Journal of Schizophrenia Research 2026;29(1):17-24
Objectives:
This study aimed to examine the association between anticholinergic burden, cognitive function, and clinical severity in elderly patients with schizophrenia to suggest safer medication treatment strategies.
Methods:
A cross-sectional study was conducted with 60 patients aged 60-90 years diagnosed with schizophrenia according to Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition criteria at the National Center for Mental Health. Participants with Clinical Global Impression-Severity (CGS-S) scores ≤4 were included. The Korean Version of the Consortium to Establish a Registry for Alzheimer’s Disease assessment Packet, the 2nd Edition (CERAD-K), CGI-S, and total Anticholinergic Cognitive Burden (ACB) scores were assessed. Statistical analyses included Mann-Whitney tests, Bootstrap analysis of covariance, and Spearman correlations.
Results:
The mean age was 69.52±6.33 years, with 66.67% female participants. The mean total ACB score was 4.30±2.42, with 80% of patients having scores ≥3. High ACB group (n=48) showed significantly higher CGI-S scores (3.13±0.73 vs. 2.67±0.49, p=0.030) and lower performance in Word List Memory, Constructional Praxis, and Constructional Recall domains. After adjusting for education year, age, and sex, high ACB group showed significantly lower CERAD-K total score I than the low ACB group (F=5.947, p=0.018). Total ACB score also showed significant negative correlations with CERAD-K total score I (r=-0.32, p=0.011).
Conclusion
High anticholinergic burden in elderly schizophrenia patients was significantly associated with cognitive impairment and symptom severity. These findings suggest the need for careful medication adjustment in this population.
4.Pilot Study for Feasibility of Onco-Geriatric Intervention Model in Older Patients with Cancer in a Tertiary Academic Hospital
Jin Won KIM ; Jung-Yeon CHOI ; Woochan PARK ; Minsu KANG ; Jeongmin SEO ; Eun Hee JUNG ; Koung Jin SUH ; Ji-Won KIM ; Se Hyun KIM ; Yu Jung KIM ; Keun-Wook LEE ; Sang-A KIM ; Ji Yun LEE ; Jeong-Ok LEE ; Soo-Mee BANG ; Kwang-il KIM ; Jee Hyun KIM
Cancer Research and Treatment 2026;58(1):329-338
Purpose:
Older cancer patients face unique challenges due to age-related physiological changes, increasing their vulnerability to treatment-related toxicities. Geriatric assessment (GA) is a validated tool for optimizing care, yet there is no consensus on integrating geriatric interventions into oncology. This study evaluates the feasibility of a tailored onco-geriatric intervention model incorporating the KG-7 screening tool.
Materials and Methods:
This prospective study included 30 patients aged ≥ 70 years with solid tumors undergoing adjuvant or palliative chemotherapy. Patients scoring ≤ 5 of KG-7 were eligible. Tailored interventions incorporating KG-7 included polypharmacy, functional status, mobility, nutrition, cognition, emotional well-being, insomnia, social support, and medical problem. KG-7, GA, and quality of life (QoL) were followed at 12 weeks.
Results:
Participants (median age, 79.5 years) had colon (43.3%), pancreatic (23.3%), or gastric cancer (23.3%). At baseline, most patients showed independent activities of daily living (100%)/instrumental activities of daily living (90%). However, 93.3% had abnormal GA. Particularly, 86.7% were either malnourished or at risk of malnutrition. The most frequently identified intervention needs included polypharmacy (70.0%), nutritional support (60.0%), and emotional well-being (50.0%) with high adherence (100.0%, 88.9%, and 46.7%, respectively). At 12 weeks, KG-7 scores improved in 43.8% of patients, and 69.2% of GA domains were improved. QoL analysis revealed modest improvement in Global Health Status (mean difference, 6.3; p=0.176). One-year survival rates were 92.3% and 79.4% for adjuvant and palliative groups, respectively.
Conclusion
The onco-geriatric intervention model incorporating KG-7 demonstrated high feasibility and potential to enhance clinical outcomes. Future studies should validate this approach in randomized trials to optimize care for older cancer patients.
5.Behavioral characterization of olfactory, auditory, and motor deficits in 5×FAD mice
Hyewon JANG ; Sueun LEE ; Yeongjun KIM ; Jeongmin LEE ; Jong-Choon KIM ; Joong-Sun KIM ; Jong-Hwan PARK ; Jinwook KIM ; Yeonghoon SON ; Changjong MOON
Journal of Veterinary Science 2026;27(3):e35-
Objective:
To characterize age-related motor, olfactory, and auditory changes in 5×FAD mice and assess associated AD pathologies and neuroinflammation in relevant brain regions.
Methods:
5×FAD and control mice were tested at 3, 6, and 12 months. Locomotor activity and motor coordination were assessed using the open field and rotarod tests, respectively. Olfactory and auditory performance were evaluated using the buried food test and the acoustic startle response test, respectively. Amyloid-β pathology and glial activation were examined in relevant nervous system components using western blot and immunohistochemistry analyses.
Results:
5×FAD mice showed no differences in open-field locomotion at any age, but exhibited a significantly greater passive clinging duration at 12 months compared to wild-type controls (p < 0.001). In the buried food test, olfactory latency was significantly prolonged in 5×FAD mice at 6 months (p = 0.035) and 12 months (p < 0.001). Acoustic startle amplitude was significantly reduced at 6 months (p = 0.030) and 12 months (p = 0.007). Amyloid-β and p-Tau accumulation and glial activation were elevated in the olfactory bulb and auditory cortex in an age-dependent manner.
Conclusions
and Relevance: This study provides an age-related behavioral and pathological characterization of olfactory and auditory impairments in the 5×FAD mouse model, with motor measures included as complementary assessments. Our findings broaden the spectrum of functional deficits associated with the AD pathology in this model.
6.Proteomic Profiling of Exosomes Derived from Endometrial Stem Cells and Adipose-Derived Stem Cells
Jungwon PARK ; Jeongmin LEE ; Yeon-Suk KIM ; Yohan OH
International Journal of Stem Cells 2026;19(1):102-112
Endometrial stem cells (EnSCs) are mesenchymal stem cells (MSCs) derived from endometrial tissue and serve as a valuable MSC source, as they are naturally replenished during menstruation. Exosomes, vesicles secreted by cells, contain various biomolecules such as proteins and nucleic acids and play crucial roles in intracellular communication, protein and nucleic acid metabolism, immune response regulation, and antigen presentation. This study investigated the protein profiles of EnSC-derived exosomes isolated from the endometrium of menstruating women and compared them with those of adipose-derived stem cell (ASC)-derived exosomes. After isolating EnSCs and ASCs, MSC characteristics were confirmed, and the purified exosomes were analyzed to determine their individual protein compositions.EnSCs, which can be obtained through non-invasive methods, exhibit multipotency similar to other MSCs and demonstrate rapid proliferation in vitro. Proteomic analysis of exosomal proteins revealed that 236 proteins were significantly more abundant in EnSC-derived exosomes than in ASC-derived exosomes, whereas 84 proteins were significantly more abundant in ASC-derived exosomes than in EnSC-derived exosomes. These findings indicate that EnSC-derived exosomes contain unique proteins compared to ASC-derived exosomes, as demonstrated through proteomic profiling. While further clinical studies are required, EnSCs hold promise as a potential therapeutic option in regenerative medicine, similar to current cell therapy products under development.
7.Korean Thyroid Association Guidelines on the Management of Differentiated Thyroid Cancers; Part II. Follow-up Surveillance after Initial Treatment 2026
Eun Kyung LEE ; Seung Heon KANG ; Bon Seok KOO ; Mijin KIM ; Min Joo KIM ; Bo Hyun KIM ; Ji Won KIM ; Dong Gyu NA ; Sohyun PARK ; Ji-In BANG ; Kyorim BACK ; Youngduk SEO ; Young-Ik SON ; Young Shin SONG ; Dong Yeob SHIN ; Jong-Hyuk AHN ; Hwa Young AHN ; So Won OH ; Ho-Ryun WON ; Won Sang YOO ; Min Kyoung LEE ; Sang-Woo LEE ; Jeongmin LEE ; Ji Ye LEE ; Dong-Jun LIM ; Ki-Wook CHUNG ; Ari CHONG ; Jin Hyang JUNG ; Sun Wook CHO ; Yoon Young CHO ; Chae Moon HONG ; Young Joo PARK ;
International Journal of Thyroidology 2026;19(1):1-40
In patients with differentiated thyroid cancer (DTC), initial recurrence risk stratification based on clinical, histopathological, and perioperative data remains the key determinant for guiding management strategies during the first 1-2 years post-treatment. However, the adoption of ongoing risk stratification (ORS), which dynamically reassesses risk by integrating longitudinal clinical data and treatment response, enables more precise long-term prognostic assessment and facilitates highly individualized management. Building upon recent guidelines, the 2026 KTA guideline has been further refined by incorporating robust evidence from large-scale national cohorts and comprehensive systematic reviews. These updated recommendations outline contemporary concepts of ORS, risk-adapted TSH suppression targets, optimized surveillance modalities for recurrence detection, and disease-specific long-term follow-up strategies. Reflecting the paradigm shift toward de-escalated treatment, this revision integrates evolved perspectives on TSH suppression intensity, the clinical interpretation of thyroglobulin levels, and tailored follow-up intervals. These evidence-based recommendations aim to minimize unnecessary treatment and excessive surveillance in the large proportion of patients with excellent prognosis after initial therapy, while ensuring that each patient receives appropriately tailored and effective long-term management.
8.Impact of adding preoperative magnetic resonance imaging to ultrasonography on male breast cancer survival: a matched analysis with female breast cancer
Jeongmin LEE ; Ka Eun KIM ; Myoung Kyoung KIM ; Haejung KIM ; Eun Sook KO ; Eun Young KO ; Boo-Kyung HAN ; Ji Soo CHOI
Ultrasonography 2025;44(1):72-82
Purpose:
The study investigated whether incorporating magnetic resonance imaging (MRI) alongside ultrasonography (US) in the preoperative evaluation is associated with differing survival outcomes between male and female breast cancer patients in a matched analysis. Additionally, clinicopathological prognostic factors were analyzed.
Methods:
Between January 2005 and December 2020, 93 male and 28,191 female patients who underwent breast surgery were screened. Exact matching analysis was conducted for age, pathologic T and N stages, and molecular subtypes. The clinicopathological characteristics and preoperative imaging methods of the matched cohorts were reviewed. Disease-free survival (DFS) and overall survival (OS) were assessed using Kaplan-Meier analysis, and Cox proportional hazards regression analysis was used to identify prognostic factors.
Results:
A total of 328 breast cancer patients (61 men and 267 women) were included in the matched analysis. Male patients had worse DFS (10-year DFS, 70.6% vs. 89.2%; P=0.001) and OS (10-year OS, 64.4% vs. 96.3%; P<0.001) than female patients. The pathologic index cancer size (hazard ratio [HR], 2.013; 95% confidence interval [CI], 1.063 to 3.810; P=0.032) was associated with worse DFS, whereas there were no significant factors associated with OS. Adding MRI to US for preoperative evaluation was not associated with DFS (HR, 1.117; 95% CI, 0.223 to 5.583; P=0.893) or OS (HR, 1.529; 95% CI, 0.300 to 7.781; P=0.609) in male patients.
Conclusion
Adding breast MRI to US in the preoperative evaluation was not associated with survival outcomes in male breast cancer patients, and the pathologic index cancer size was associated with worse DFS.
9.Impact of adding preoperative magnetic resonance imaging to ultrasonography on male breast cancer survival: a matched analysis with female breast cancer
Jeongmin LEE ; Ka Eun KIM ; Myoung Kyoung KIM ; Haejung KIM ; Eun Sook KO ; Eun Young KO ; Boo-Kyung HAN ; Ji Soo CHOI
Ultrasonography 2025;44(1):72-82
Purpose:
The study investigated whether incorporating magnetic resonance imaging (MRI) alongside ultrasonography (US) in the preoperative evaluation is associated with differing survival outcomes between male and female breast cancer patients in a matched analysis. Additionally, clinicopathological prognostic factors were analyzed.
Methods:
Between January 2005 and December 2020, 93 male and 28,191 female patients who underwent breast surgery were screened. Exact matching analysis was conducted for age, pathologic T and N stages, and molecular subtypes. The clinicopathological characteristics and preoperative imaging methods of the matched cohorts were reviewed. Disease-free survival (DFS) and overall survival (OS) were assessed using Kaplan-Meier analysis, and Cox proportional hazards regression analysis was used to identify prognostic factors.
Results:
A total of 328 breast cancer patients (61 men and 267 women) were included in the matched analysis. Male patients had worse DFS (10-year DFS, 70.6% vs. 89.2%; P=0.001) and OS (10-year OS, 64.4% vs. 96.3%; P<0.001) than female patients. The pathologic index cancer size (hazard ratio [HR], 2.013; 95% confidence interval [CI], 1.063 to 3.810; P=0.032) was associated with worse DFS, whereas there were no significant factors associated with OS. Adding MRI to US for preoperative evaluation was not associated with DFS (HR, 1.117; 95% CI, 0.223 to 5.583; P=0.893) or OS (HR, 1.529; 95% CI, 0.300 to 7.781; P=0.609) in male patients.
Conclusion
Adding breast MRI to US in the preoperative evaluation was not associated with survival outcomes in male breast cancer patients, and the pathologic index cancer size was associated with worse DFS.
10.Impact of adding preoperative magnetic resonance imaging to ultrasonography on male breast cancer survival: a matched analysis with female breast cancer
Jeongmin LEE ; Ka Eun KIM ; Myoung Kyoung KIM ; Haejung KIM ; Eun Sook KO ; Eun Young KO ; Boo-Kyung HAN ; Ji Soo CHOI
Ultrasonography 2025;44(1):72-82
Purpose:
The study investigated whether incorporating magnetic resonance imaging (MRI) alongside ultrasonography (US) in the preoperative evaluation is associated with differing survival outcomes between male and female breast cancer patients in a matched analysis. Additionally, clinicopathological prognostic factors were analyzed.
Methods:
Between January 2005 and December 2020, 93 male and 28,191 female patients who underwent breast surgery were screened. Exact matching analysis was conducted for age, pathologic T and N stages, and molecular subtypes. The clinicopathological characteristics and preoperative imaging methods of the matched cohorts were reviewed. Disease-free survival (DFS) and overall survival (OS) were assessed using Kaplan-Meier analysis, and Cox proportional hazards regression analysis was used to identify prognostic factors.
Results:
A total of 328 breast cancer patients (61 men and 267 women) were included in the matched analysis. Male patients had worse DFS (10-year DFS, 70.6% vs. 89.2%; P=0.001) and OS (10-year OS, 64.4% vs. 96.3%; P<0.001) than female patients. The pathologic index cancer size (hazard ratio [HR], 2.013; 95% confidence interval [CI], 1.063 to 3.810; P=0.032) was associated with worse DFS, whereas there were no significant factors associated with OS. Adding MRI to US for preoperative evaluation was not associated with DFS (HR, 1.117; 95% CI, 0.223 to 5.583; P=0.893) or OS (HR, 1.529; 95% CI, 0.300 to 7.781; P=0.609) in male patients.
Conclusion
Adding breast MRI to US in the preoperative evaluation was not associated with survival outcomes in male breast cancer patients, and the pathologic index cancer size was associated with worse DFS.

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