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.Hepatocellular carcinoma in Korea: an analysis of the 2016-2018 Korean Nationwide Cancer Registry
Jihyun AN ; Young CHANG ; Gwang Hyeon CHOI ; Won SOHN ; Jeong Eun SONG ; Hyunjae SHIN ; Jae Hyun YOON ; Jun Sik YOON ; Hye Young JANG ; Eun Ju CHO ; Ji Won HAN ; Suk Kyun HONG ; Ju-Yeon CHO ; Kyu-Won JUNG ; Eun Hye PARK ; Eunyang KIM ; Bo Hyun KIM
Journal of Liver Cancer 2025;25(1):109-122
Background:
s/Aims: Hepatocellular carcinoma (HCC) is the sixth most common cancer and second leading cause of cancer-related deaths in South Korea. This study evaluated the characteristics of Korean patients newly diagnosed with HCC in 2016-2018.
Methods:
Data from the Korean Primary Liver Cancer Registry (KPLCR), a representative database of patients newly diagnosed with HCC in South Korea, were analyzed. This study investigated 4,462 patients with HCC registered in the KPLCR in 2016-2018.
Results:
The median patient age was 63 years (interquartile range, 55-72). 79.7% of patients were male. Hepatitis B infection was the most common underlying liver disease (54.5%). The Barcelona Clinic Liver Cancer (BCLC) staging system classified patients as follows: stage 0 (14.9%), A (28.8%), B (7.5%), C (39.0%), and D (9.8%). The median overall survival was 3.72 years (95% confidence interval, 3.47-4.14), with 1-, 3-, and 5-year overall survival rates of 71.3%, 54.1%, and 44.3%, respectively. In 2016-2018, there was a significant shift toward BCLC stage 0-A and Child-Turcotte-Pugh liver function class A (P<0.05), although survival rates did not differ by diagnosis year. In the treatment group (n=4,389), the most common initial treatments were transarterial therapy (31.7%), surgical resection (24.9%), best supportive care (18.9%), and local ablation therapy (10.5%).
Conclusions
Between 2016 and 2018, HCC tended to be diagnosed at earlier stages, with better liver function in later years. However, since approximately half of the patients remained diagnosed at an advanced stage, more rigorous and optimized HCC screening strategies should be implemented.
4.Hepatocellular carcinoma in Korea: an analysis of the 2016-2018 Korean Nationwide Cancer Registry
Jihyun AN ; Young CHANG ; Gwang Hyeon CHOI ; Won SOHN ; Jeong Eun SONG ; Hyunjae SHIN ; Jae Hyun YOON ; Jun Sik YOON ; Hye Young JANG ; Eun Ju CHO ; Ji Won HAN ; Suk Kyun HONG ; Ju-Yeon CHO ; Kyu-Won JUNG ; Eun Hye PARK ; Eunyang KIM ; Bo Hyun KIM
Journal of Liver Cancer 2025;25(1):109-122
Background:
s/Aims: Hepatocellular carcinoma (HCC) is the sixth most common cancer and second leading cause of cancer-related deaths in South Korea. This study evaluated the characteristics of Korean patients newly diagnosed with HCC in 2016-2018.
Methods:
Data from the Korean Primary Liver Cancer Registry (KPLCR), a representative database of patients newly diagnosed with HCC in South Korea, were analyzed. This study investigated 4,462 patients with HCC registered in the KPLCR in 2016-2018.
Results:
The median patient age was 63 years (interquartile range, 55-72). 79.7% of patients were male. Hepatitis B infection was the most common underlying liver disease (54.5%). The Barcelona Clinic Liver Cancer (BCLC) staging system classified patients as follows: stage 0 (14.9%), A (28.8%), B (7.5%), C (39.0%), and D (9.8%). The median overall survival was 3.72 years (95% confidence interval, 3.47-4.14), with 1-, 3-, and 5-year overall survival rates of 71.3%, 54.1%, and 44.3%, respectively. In 2016-2018, there was a significant shift toward BCLC stage 0-A and Child-Turcotte-Pugh liver function class A (P<0.05), although survival rates did not differ by diagnosis year. In the treatment group (n=4,389), the most common initial treatments were transarterial therapy (31.7%), surgical resection (24.9%), best supportive care (18.9%), and local ablation therapy (10.5%).
Conclusions
Between 2016 and 2018, HCC tended to be diagnosed at earlier stages, with better liver function in later years. However, since approximately half of the patients remained diagnosed at an advanced stage, more rigorous and optimized HCC screening strategies should be implemented.
6.Hepatocellular carcinoma in Korea: an analysis of the 2016-2018 Korean Nationwide Cancer Registry
Jihyun AN ; Young CHANG ; Gwang Hyeon CHOI ; Won SOHN ; Jeong Eun SONG ; Hyunjae SHIN ; Jae Hyun YOON ; Jun Sik YOON ; Hye Young JANG ; Eun Ju CHO ; Ji Won HAN ; Suk Kyun HONG ; Ju-Yeon CHO ; Kyu-Won JUNG ; Eun Hye PARK ; Eunyang KIM ; Bo Hyun KIM
Journal of Liver Cancer 2025;25(1):109-122
Background:
s/Aims: Hepatocellular carcinoma (HCC) is the sixth most common cancer and second leading cause of cancer-related deaths in South Korea. This study evaluated the characteristics of Korean patients newly diagnosed with HCC in 2016-2018.
Methods:
Data from the Korean Primary Liver Cancer Registry (KPLCR), a representative database of patients newly diagnosed with HCC in South Korea, were analyzed. This study investigated 4,462 patients with HCC registered in the KPLCR in 2016-2018.
Results:
The median patient age was 63 years (interquartile range, 55-72). 79.7% of patients were male. Hepatitis B infection was the most common underlying liver disease (54.5%). The Barcelona Clinic Liver Cancer (BCLC) staging system classified patients as follows: stage 0 (14.9%), A (28.8%), B (7.5%), C (39.0%), and D (9.8%). The median overall survival was 3.72 years (95% confidence interval, 3.47-4.14), with 1-, 3-, and 5-year overall survival rates of 71.3%, 54.1%, and 44.3%, respectively. In 2016-2018, there was a significant shift toward BCLC stage 0-A and Child-Turcotte-Pugh liver function class A (P<0.05), although survival rates did not differ by diagnosis year. In the treatment group (n=4,389), the most common initial treatments were transarterial therapy (31.7%), surgical resection (24.9%), best supportive care (18.9%), and local ablation therapy (10.5%).
Conclusions
Between 2016 and 2018, HCC tended to be diagnosed at earlier stages, with better liver function in later years. However, since approximately half of the patients remained diagnosed at an advanced stage, more rigorous and optimized HCC screening strategies should be implemented.
8.Comprehensive Approaches to Diagnosis and Treatment of Sensitive Skin
Hye One KIM ; Ji Young UM ; Han Bi KIM ; So Yeon LEE ; Hyun CHOI ; Jihye KIM ; Eunbi KO ; Bo Young CHUNG ; Chun Wook PARK
Annals of Dermatology 2025;37(4):173-182
Sensitive skin (SS) is increasingly recognized as a complex syndrome characterized by discomfort and heightened sensitivity to otherwise harmless stimuli, such as environmental changes, physical contact, and cosmetic products. This condition poses challenges in both diagnosis and treatment due to its variable presentation and subjective nature. The pathophysiological features of SS include neurogenic inflammation and small fiber neuropathy, largely driven by the hyperactivation of sensory nerves. This hyperactivation is closely associated with transient receptor potential (TRP) channels, particularly TRPV1, which contribute to the exaggerated sensory responses seen in SS. Furthermore, psychological factors like stress and anxiety, along with environmental stressors such as pollution and ultraviolet exposure, play significant roles in exacerbating symptoms. The diverse and individualized responses to stimuli make it difficult to establish standardized diagnostic criteria for SS, necessitating a combination of subjective diagnostic tools (e.g., the Sensitive Scale-10) and objective assessments (e.g., transepidermal water loss and lactic acid sting test) to accurately identify and assess SS. This paper provides a comprehensive review of SS, covering its definition, prevalence, pathogenesis, diagnostic challenges, and management strategies, and highlights the importance of personalized care in effectively managing SS and improving patient quality of life.
9.Development and validation of an illustrated questionnaire on healthy eating practices among Korean preschool children
Dawon PARK ; Bo-Jeong GONG ; Dahyeon KIM ; Young-Hee HAN ; Saerom SHIN ; Eun Yeol WOO ; Hye-Kyung PARK ; Taisun HYUN
Nutrition Research and Practice 2025;19(6):985-1001
BACKGROUND/OBJECTIVES:
An illustrated questionnaire, the Healthy Eating Practice Questionnaire (HEPQ), was developed and validated to assess healthy eating practices among Korean preschool children.
SUBJECTS/METHODS:
The development process consisted of 4 phases: (1) item generation based on a literature review and focus group interviews, (2) item refinement through expert consultation, (3) illustration design, and (4) validation. One hundred and eighty-seven child–parent pairs and 24 teachers participated in the validation study. The reliability was examined using test–retest analysis, and the validity was assessed by comparing the children’s self-reports with those of their parents and teachers. The level of agreement was determined using the percentage agreement, kappa statistics, and intraclass correlation coefficient (ICC).
RESULTS:
The final 30-item questionnaire consisted of 4 domains: food preferences, eating behaviors, hand/oral hygiene practices, and nutrition knowledge. Most items showed a percentage agreement above 60% and kappa coefficients exceeding 0.5 in test–retest analysis, indicating acceptable consistency. The child–caregiver agreement was moderate to substantial, with kappa values generally above 0.4. The domain-level ICCs indicated good reliability (ICC = 0.49–0.83) and validity (ICC = 0.33–0.77) across all domains and subgroups.The comparisons by age showed that 4-yr-olds provided valid and reliable responses comparable to 5-yr-olds. The parents and teachers confirmed that the illustrated format was easy for the children to understand and complete independently.
CONCLUSION
The HEPQ showed satisfactory reliability and validity for assessing healthy eating practices among preschool children. The illustrated format enhances comprehension and engagement, supporting its applicability for research and nutrition education in daycare settings.
10.Is endoscopic hemostasis safe and effective for delayed post-polypectomy bleeding?
Jae-Yong CHO ; Yunho JUNG ; Han Hee LEE ; Jung-Wook KIM ; Kee Myung LEE ; Hyun LIM ; Geun-Hyuk CHOI ; Seong Woo CHOI ; Bo-In LEE
International Journal of Gastrointestinal Intervention 2024;13(4):122-127
Background:
Delayed post-polypectomy bleeding (DPPB) is a serious complication of polypectomy that is poorly understood. The aim of this study was to evaluate the effectiveness of endoscopic hemostasis in managing DPPB and to identify associated risk factors.
Methods:
We retrospectively analyzed 289 patients who experienced DPPB (≥ 24 hours after polypectomy) and underwent endoscopic hemostasis at five university hospitals between 2005 and 2018. Patient characteristics, polyp size, technical factors, rebleeding, complications, and length of hospitalization were assessed.
Results:
Endoscopic hemostasis was successful in all 289 cases of DPPB. The techniques and devices employed included epinephrine injection (24.9%), argon plasma coagulation (18.0%), hemostatic forceps (10.7%), and hemoclips (87.9%). Rebleeding occurred in 15 cases (5.2%) after initial endoscopic hemostasis. The incidence of rebleeding was significantly associated with polyp size (< 10 mm: 2.8%, 10 mm–19 mm: 5.6%, ≥ 20 mm: 13.5%, P = 0.030) and sedation status (yes: 1.8%, no: 7.3%, P = 0.040). However, hemostasis method, bleeding characteristics, and polyp location were not significantly linked to rebleeding. Multivariate analysis revealed that polyp size (odds ratio, 5.02; 95% confidence interval, 1.25–20.13; P = 0.023) was significantly associated with rebleeding after endoscopic hemostasis for DPPB. In all 15 cases of rebleeding, a second endoscopic hemostasis was successfully performed without the need for embolization or surgical intervention. No perforations occurred during the first or second endoscopic hemostatic procedures.
Conclusion
Polyp size and sedation status were associated with rebleeding after endoscopic hemostasis for DPPB. As an intervention for DPPB, endoscopic hemostasis appears safe and effective.

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