1.Korean Medication Algorithm Project for Depressive Disorder 2025:Comparisons with Other Treatment Guidelines
Won-Seok CHOI ; Young Sup WOO ; Won-Myong BAHK ; Nak-Young KIM ; Jeong Seok SEO ; Sheng-Min WANG ; Won KIM ; Sung-Yong PARK ; Jung Goo LEE ; Chan-Mo YANG ; Hyung Mo SUNG ; Young-Eun JUNG ; Moon-Doo KIM ; Jong-Hyun JEONG ; Bo-Hyun YOON ; Kyung Joon MIN
Clinical Psychopharmacology and Neuroscience 2026;24(1):2-14
The sixth edition of the Korean Medication Algorithm Project for Depressive Disorder (KMAP-DD) was published in 2025. This review compared KMAP-DD 2025 with four major international clinical practice guidelines: Canadian Network for Mood and Anxiety Treatments Clinical Guidelines for the Management of Major Depressive Disorders, National Institute for Health and Care Excellence Depression Guideline, Royal Australian and New Zealand College of Psychiatrists Clinical Practice Guidelines for Mood Disorders, and British Association for Psychopharmacology Guideline. While KMAP-DD is based on expert consensus, and others on evidence-based methods, overall treatment strategies for depressive episodes were fairly consistent. Especially, KMAP-DD 2025 offers more structured recommendations in areas lacking strong evidence, such as premenstrual dysphoric disorder, perinatal depression, and depression with medical comorbidities. KMAP-DD 2025 also reflected Korean clinical practice patterns emphasizing rapid symptom relief and early use of combination strategies. Despite limitations as a consensus-based guideline, KMAP-DD 2025 complements evidence-based approaches and provides practical, situation-specific guidance for real-world clinical decision-making in Korea.
2.Muscle Loss Driven by Extracellular Signal-Regulated Kinase Suppression via β-Adrenergic Activation in High-Normal Catecholamine Status
Jieun LEE ; Ju Yeon KWAK ; Ho Yeop LEE ; Ji Sun MOON ; Hyo Ju JANG ; Ha Thi NGA ; Thi Linh NGUYEN ; Alfin Mohammad ABDILLAH ; Junglyun KIM ; Sihwan KIM ; Yong Ryoul YANG ; Jeong Eun LEE ; Hyon-Seung YI
Endocrinology and Metabolism 2026;41(2):319-332
Background:
Catecholamines play a crucial role in muscle biogenesis, but their persistent elevation is linked to muscle wasting, which is poorly understood. This study aimed to investigate the association between catecholamine levels and age-related muscle loss.
Methods:
This retrospective study evaluated the plasma levels of two catecholamines, metanephrine and normetanephrine, and the clinical characteristics of 830 patients with adrenal incidentaloma on computed tomography (CT). Cross-sectional CT data at the L3 lumbar vertebrae were used to measure muscle areas. In vitro studies on C2C12 myotubes were conducted to examine β-adrenergic receptor signaling pathways and their role in myogenesis.
Results:
Men had significantly higher mean metanephrine levels of 0.17 nmol/L and normetanephrine levels of 0.63 nmol/L than women (P<0.05). Total abdominal muscle area was negatively correlated with catecholamine levels in both men and women, with the strongest negative correlation between normetanephrine levels and total abdominal muscle area in men (r=–0.31, P<0.001). Similarly, the strongest negative correlation between visceral fat area and metanephrine was observed in men (r=–0.25, P=0.004). Clenbuterol, a β-adrenergic receptor agonist, inhibited myogenesis, including myotube formation by extracellular signal-regulated kinase (ERK) suppression in C2C12 myoblasts. Conversely, β-blockers increased myogenesis via increasing ERK phosphorylation in C2C12 cells. These findings suggest that β-adrenergic modulation influences skeletal muscle differentiation, with ERK phosphorylation.
Conclusion
Catecholamine levels are associated with age, sex, muscle mass, and fat mass. Monitoring catecholamine levels, particularly in older men and in individuals with reduced muscle mass, may help manage age-related muscle loss and lead to individualized treatment strategies.
3.A Review of Dexmedetomidine Use in Electroconvulsive Therapy
In Won CHUNG ; Heung Sik KIM ; Younsuk LEE ; Hyoseok KANG ; Narae JEONG ; Eun-Jeong JOO ; Yong Sik KIM
Journal of Korean Neuropsychiatric Association 2026;65(1):19-33
Electroconvulsive therapy (ECT) is performed under general anesthesia, and the choice of anesthetic induction agents critically influences multiple aspects of the treatment, including the seizure quality, cardiovascular stability, and post-procedural recovery. Developing anesthetic strategies that reliably achieve loss of consciousness while preserving adequate seizure expression has been a central challenge in ECT practice because most commonly used induction agents possess anticonvulsant properties. Dexmedetomidine (DEX), recently introduced primarily for sedation in intensive care and various procedural settings, is a selective α2-adrenergic receptor agonist that has minimal impacts on the seizure threshold and seizure duration while providing a complex profile of sedation, analgesia, anxiolysis, and sympatholysis. These properties help reduce the acute increases in blood pressure and heart rate induced by electrical stimulation, and DEX also offers advantages for airway management because it induces virtually no respiratory depression.Importantly, DEX has also been consistently reported to reduce pre-procedural anxiety and postictal agitation or aggression, suggesting that it may allow more stable management throughout the entire ECT course compared with conventional anesthetic agents. This review examines the pharmacological characteristics and clinical implications of DEX in anesthetic induction for ECT and discusses its potential roles in future clinical practice.
4.Comparative survival outcomes of surgical resection versus radiotherapy after FOLFIRINOX in borderline resectable and locally advanced pancreatic cancer
Jiwon YU ; Jeong Ha LEE ; Hyunju SHIN ; Hee Chul PARK ; Joon Oh PARK ; Jung Yong HONG ; Minsuk KWON ; Ji Eun SHIN ; Kyu Taek LEE ; Kwang Hyuck LEE ; Jong Kyun LEE ; Joo Kyung PARK ; Young Hoon CHOI ; Jin Seok HEO ; In Woong HAN ; Sang Hyun SHIN ; Hongbeom KIM ; Ji Hye MIN ; Jeong Il YU
Precision and Future Medicine 2026;10(1):39-50
Purpose:
This study evaluated the clinical outcomes and prognostic factors in patients with borderline resectable pancreatic cancer (BRPC) and locally advanced pancreatic cancer (LAPC) treated with upfront FOLFIRINOX followed by local-regional therapy (LRT), surgical resection (SR), and radiotherapy (RT). We aimed to identify specific patient subgroups for which RT may serve as a reasonable alternative to SR for local tumor control.
Methods:
We retrospectively analyzed 116 patients (SR group, n= 70; RT group, n= 46) at a single center between 2015 and 2020. Survival outcomes were compared based on LRT modalities, focusing on identifying subgroups in which RT provided an efficacy comparable to that of SR.
Results:
Among 116 patients, the SR group achieved a significantly higher 5-year overall survival (OS) than the RT group (27.1% vs. 8.7%, P< 0.0001), despite similar progression-free survival (P= 0.23). Significant prognostic factors for OS included carbohydrate antigen 19-9 (CA19-9) response in BRPC (P= 0.02) and radiologic partial response in LAPC (P= 0.05). Subgroup analysis revealed that, while SR provided a survival advantage in CA19-9 responders, no significant difference in OS was observed between SR and RT in CA19-9 non-responders (P= 0.37).
Conclusion
Although surgery remains the gold standard, RT may be considered a justifiable local alternative for CA19-9 non-responders and surgically ineligible patients with LAPC, yielding comparable outcomes in these specific, biologically unfavorable subgroups.
5.Nationwide Survey on Endoscopic Submucosal Dissection for Early Gastric Cancer in Korea: Results From the Korean College of Helicobacter and Upper Gastrointestinal Research (KCHUGR) 2023 Survey
Jae Yong PARK ; Jeong Hoon LEE ; Tae-Se KIM ; Da Hyun JUNG ; Bong Eun LEE ; Yonghoon CHOI ; Wan-Sik LEE ; Young-Il KIM ; Sun Hyung KANG ; Hyunsoo CHUNG ; Su Jin KIM ; Joon Sung KIM ; Donghoon KANG ; Su Youn NAM ; Seung Han KIM ; Hyo-Joon YANG ; Hyun LIM ; Jin LEE ; Seon-Young PARK ; Seung-Woo LEE ; Sun Moon KIM ; Sam Ryong JEE ; Dae Young CHEUNG ; Chung Hyun TAE ; Seokin KANG ; Sung Chul PARK ; Seung In SEO ; Cheol Min SHIN ; Kee Don CHOI ; Jong Yeul LEE ;
The Korean Journal of Helicobacter and Upper Gastrointestinal Research 2026;26(1):50-59
Objectives:
Endoscopic submucosal dissection (ESD) has become a standard minimally invasive treatment for selected patients with early gastric cancer (EGC). This study presents the first nationwide survey of patients with EGC treated with ESD in 2023, conducted by the Korean College of Helicobacter and Upper Gastrointestinal Research.
Methods:
Data were retrospectively collected from participating referral centers across Korea using a standardized case report form covering patient characteristics, tumor features, procedural details, histopathological findings, and clinical outcomes. Descriptive and comparative analyses were conducted to summarize nationwide ESD practice patterns and outcomes.
Results:
Data from 5460 ESD cases from 5250 patients across 27 institutions were analyzed. The mean age was 67.4 years, with 74.1% males. Multiple synchronous lesions were identified in 3.7%. Most lesions were located in the lower third of the stomach (64.0%), and differentiated-type adenocarcinomas accounted for 87.8%. The en bloc and complete resection rates were 99.2% and 91.4%, respectively. Curative resection was achieved in 80.5%, whereas local non-curative resection (L-NCR) and surgical non-curative resection (S-NCR) were identified in 2.8% and 16.7%, respectively. Additional surgery was performed more frequently in patients with S-NCR than in those with L-NCR (59.3% vs. 24.7%). The bleeding and perforation rates were 3.6% and 0.9%, respectively, and were mostly managed conservatively or endoscopically. The median length of hospitalization was 4.0 days.
Conclusions
This first nationwide survey provides a comprehensive overview of the current practice of EGC treatment using ESD in Korea, demonstrating high technical success and safety, and establishing a baseline dataset for future longitudinal research.
6.Clinical Outcomes of Tegoprazan Versus Proton Pump Inhibitors in Patients Receiving Antiplatelet Therapy After Percutaneous Coronary Intervention: A Retrospective, Observational Study
Jin LEE ; Jongha PARK ; Jino PARK ; Yong Eun PARK ; Joon Hyuk CHOI ; Nae-Yun HEO ; Seung Ha PARK ; Tae Oh KIM
The Korean Journal of Helicobacter and Upper Gastrointestinal Research 2026;26(1):73-78
Objectives:
Tegoprazan is an alternative to proton pump inhibitors (PPIs). This study evaluated the occurrence of upper gastrointestinal (GI) and cardiovascular (CV) complications in patients with ischemic heart disease undergoing antiplatelet therapy after percutaneous coronary intervention (PCI) who were treated with tegoprazan or PPIs.
Methods:
Data from 604 patients who received antiplatelet therapy with tegoprazan or PPIs for >6 months after PCI between March 2019 and November 2023 were retrospectively analyzed. The primary GI endpoints were symptomatic gastroduodenal ulcers and upper GI bleeding, while the primary CV endpoints comprised major adverse cardiac events (MACEs), nonfatal myocardial infarction (MI), target vessel revascularization, and death from CV-related causes.
Results:
Among the 604 patients, 265 received tegoprazan and 339 received PPIs. During a mean follow-up of 17 months, seven patients experienced a GI event (0.4% with tegoprazan vs. 1.8% with PPIs; p=0.112) and 12 experienced MACEs (1.1% with tegoprazan vs. 2.7% with PPIs; p=0.183). Subgroup analysis indicated that target vessel revascularization occurred in six patients, with event rates of 0.8% (n=2) for tegoprazan and 1.2% (n=4) for PPIs (p=0.598). Tegoprazan was associated with similar rates of nonfatal MI (0.8% vs. 2.4%; p=0.125) and death from CV-related causes (0.4% vs. 0%; p=0.258) as PPIs.
Conclusions
There were no significant differences in GI- or CV-related complications between patients treated with tegoprazan and those treated with PPIs.
7.Eyeball Donation and Management System
Jaeyoung KIM ; Chul Young CHOI ; Jae Yong KIM ; Roo Min JUN ; Eun Chul KIM ; Yong-Soo BYUN ; Jong Hwa JUN ; Dong Hyun KIM ; Yunjin LEE ; Hyung Keun LEE ; Mee Kum KIM
Journal of the Korean Ophthalmological Society 2026;67(2):33-46
Purpose:
To propose improvements for promoting eyeball donation and managing donated corneas, this study analyzed the current system in Korea and reviewed relevant Korean laws, international standards, and foreign practices.
Methods:
To understand the current situation in Korea, annual reports published by the Korean Network for Organ Sharing and existing Korean laws were examined. For the international context, references were made to the National Organ Transplant Act, 21 CFR Part 1271 (Code of Federal Regulations Title 21 Part 1271), Current Good Tissue Practice guidelines of the Food and Drug Administration, and the Medical Standards of the Eye Bank Association of America in the United States. Opinions on promoting eyeball donation, improving the monitoring system for donated corneas and revising laws related to cornea management were gathered. The perspectives of 31 experts affiliated with the Korea Cornea Society were collected through a survey.
Results:
Currently, there are no laws or regulations that can be appropriately applied to the cornea which has properties of both organs and tissue. Additionally, there is no law regulating imported corneas. Therefore, there is a need to legislate or revise the current law; all experts who conducted the survey agreed on this. Furthermore, the current system faces limitations in the efficient procurement, stable supply, and management of donor corneas, as well as in donation promotion. To address these issues, the establishment of independent legislation for managing donated corneas and a National Central Eye Bank was proposed. This central body would oversee continuous personnel training, education, and monitoring, along with ensuring stable procurement, processing, and supply of corneas within a structured management system. Sixty-eight percent of the surveyed experts agreed with this proposal.
Conclusions
To establish a safe and efficient Korean corneal supply and demand system, it is imperative to enact cornea-specific laws, including the establishment of a National Central Eye Bank.
8.Nationwide Survey on Endoscopic Submucosal Dissection for Early Gastric Cancer in Korea: Results From the Korean College of Helicobacter and Upper Gastrointestinal Research (KCHUGR) 2023 Survey
Jae Yong PARK ; Jeong Hoon LEE ; Tae-Se KIM ; Da Hyun JUNG ; Bong Eun LEE ; Yonghoon CHOI ; Wan-Sik LEE ; Young-Il KIM ; Sun Hyung KANG ; Hyunsoo CHUNG ; Su Jin KIM ; Joon Sung KIM ; Donghoon KANG ; Su Youn NAM ; Seung Han KIM ; Hyo-Joon YANG ; Hyun LIM ; Jin LEE ; Seon-Young PARK ; Seung-Woo LEE ; Sun Moon KIM ; Sam Ryong JEE ; Dae Young CHEUNG ; Chung Hyun TAE ; Seokin KANG ; Sung Chul PARK ; Seung In SEO ; Cheol Min SHIN ; Kee Don CHOI ; Jong Yeul LEE ;
Journal of Gastric Cancer 2026;26(2):169-183
Purpose:
Endoscopic submucosal dissection (ESD) has become a standard minimally invasive treatment for selected patients with early gastric cancer (EGC). This study presents the first nationwide survey of patients with EGC treated with ESD in 2023, conducted by the Korean College of Helicobacter and Upper Gastrointestinal Research.
Materials and Methods:
Data were retrospectively collected from participating referral centers across Korea using a standardized case report form covering patient characteristics, tumor features, procedural details, histopathological findings, and clinical outcomes.Descriptive and comparative analyses were conducted to summarize nationwide ESD practice patterns and outcomes.
Results:
Data from 5,460 ESD cases from 5,250 patients across 27 institutions were analyzed. The mean age was 67.4 years, with 74.1% males. Multiple synchronous lesions were identified in 3.7%. Most lesions were located in the lower third of the stomach (64.0%), and differentiated-type adenocarcinomas accounted for 87.8%. The en bloc and complete resection rates were 99.2% and 91.4%, respectively. Curative resection was achieved in 80.5%, whereas local non-curative resection (L-NCR) and surgical non-curative resection (S-NCR) were identified in 2.8% and 16.7%, respectively. Additional surgery was performed more frequently in patients with S-NCR than in those with L-NCR (59.3% vs. 24.7%). The bleeding and perforation rates were 3.6% and 0.9%, respectively, and were mostly managed conservatively or endoscopically. The median length of hospitalization was 4.0 days.
Conclusions
This first nationwide survey provides a comprehensive overview of the current practice of EGC treatment using ESD in Korea, demonstrating high technical success and safety, and establishing a baseline dataset for future longitudinal research.
9.Optimizing Healthspan in Women: A New Paradigm for Successful Aging through the Menopausal Transition
Hyun Joo LEE ; Eun Hee YU ; Jong Kil JOO ; Yong Jin NA
Journal of Menopausal Medicine 2026;32(1):1-11
Menopause is a normative midlife transition characterized by profound endocrine remodeling and a high burden of symptoms and functional change. Accumulating epidemiologic and translational evidence links menopausal transition with shifts in cardiometabolic risk, musculoskeletal health, sleep, mood, and perceived cognitive function. However, most data support association rather than definitive causal acceleration of aging independent of chronological time. This narrative review proposes a menopause-centered healthspan framework that integrates biological, neurocognitive, and psychosocial domains and translates evidence into pragmatic clinical pathway tools. To inform topic selection and prioritize higher-level evidence, including guidelines, randomized trials, meta-analyses, and large cohort studies, a structured evidence scan utilizing PubMed and targeted citation tracking was performed. The evidence scan identified 256 citations. After duplicate removal, titles/abstracts of 162 unique records were reviewed, of which 102 citations informed the final narrative synthesis. The results emphasize that menopausal hormone therapy remains the most effective treatment for vasomotor symptoms and an evidence-based option for reducing fracture risk in appropriate candidates. However, it is not indicated for the primary prevention of cardiovascular disease or dementia. Absolute risks and benefits vary by age, time since menopause, and formulation/route. The neurocognitive section distinguishes common, often transient midlife cognitive complaints from long-term neurodegenerative outcomes, highlighting that menopause is not established as an independent dementia risk factor in the general population. Overall, the framework aims to support individualized, equity-informed care during menopausal transition.
10.Nerve Root Herniation Due to Delayed Dural Tear Following Unilateral Laminotomy for Bilateral Decompression With Lumbar Discectomy Using Unilateral Biportal Endoscopy
Sang Hyub LEE ; Jae-Won JANG ; Yong Eun CHO ; Choon Keun PARK
Journal of Minimally Invasive Spine Surgery and Technique 2026;11(Suppl 1):S109-S115
This case report describes a delayed dural tear with subsequent nerve root herniation following unilateral laminotomy for bilateral decompression (ULBD) combined with lumbar discectomy using unilateral biportal endoscopy (UBE). A 31-year-old woman underwent UBE ULBD with lumbar discectomy via a left-sided approach for extremely severe L4–5 central canal stenosis with a central disc herniation. No dural tear occurred intraoperatively; however, the dorsal dura was extremely thinned and translucent, with the nerve roots faintly visible through the thecal sac. Following the initial operation, the patient’s symptoms improved, and she was discharged without complications. One week later, the patient developed recurrent severe radiating pain in the left leg. Follow-up magnetic resonance imaging (MRI) revealed cerebrospinal fluid (CSF) leakage and findings suspicious for nerve root herniation. Revision surgery was performed to reduce the herniated nerve root and repair the dural tear. After revision surgery, the patient’s symptoms improved, and postoperative MRI obtained 1 week later showed no evidence of CSF leakage. During 6 months of follow-up, no further complications were observed. Delayed dural tear with nerve root herniation is rare but clinically significant, and revision surgery is often unavoidable. Prophylactic reinforcement may be advisable when translucent, thinned dura is encountered.

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