1.The Risk of Dementia after Anesthesia Differs according to the Mode of Anesthesia and Individual Anesthetic Agent
Seung-Hoon LEE ; Won Seok William HYUNG ; Surin SEO ; Junhyung KIM ; Changsu HAN ; Kwang-Yeon CHOI ; HyunChul YOUN ; Hyun-Ghang JEONG
Clinical Psychopharmacology and Neuroscience 2025;23(1):65-75
Objective:
Multiple cohort studies have investigated the potential link between anesthesia and dementia. However, mixed findings necessitate closer examination. This study aimed to investigate the association between anesthesia exposure and the incidence of dementia, considering different anesthesia types and anesthetic agents.
Methods:
This nationwide cohort study utilized data from the South Korean Health Insurance Review and Assessment Service database, covering 62,541 participants, to investigate the correlation between anesthesia exposure and dementia incidence.
Results:
Results revealed an increased risk of dementia in individuals who underwent general (hazard ratio [HR], 1.318;95% confidence interval [CI], 1.061−1.637) or regional/local anesthesia (HR, 2.097; 95% CI, 1.887−2.329) compared to those who did not. However, combined general and regional/local anesthesia did not significantly increase dementia risk (HR, 1.097; 95% CI, 0.937−1.284). Notably, individual anesthetic agents exhibited varying risks; desflurane and midazolam showed increased risks, whereas propofol showed no significant difference.
Conclusion
This study provides unique insights into the nuanced relationship between anesthesia, individual anesthetic agents, and the incidence of dementia. While confirming a general association between anesthesia exposure and dementia risk, this study also emphasizes the importance of considering specific agents. These findings under-score the need for careful evaluation and long-term cognitive monitoring after anesthesia.
2.Low Psychological Resilience Predict the Risk for Alcohol Use Disorder in General Population: National Mental Health Survey of Korea 2021
Seung-Hoon LEE ; Junhyung KIM ; Changsu HAN
Clinical Psychopharmacology and Neuroscience 2025;23(1):53-64
Objective:
Prior research has emphasized psychological resilience as a potential protective factor against alcohol use disorder in diverse populations, with limited exploration of its relationship in the general population. This study investigated the association between the lifetime and one-year prevalence of alcohol use disorder and resilience.
Methods:
Data obtained from the National Mental Health Survey of Korea 2021 (5,511 participants; 40.7% response rate) encompassed information on alcohol use disorders, resilience, experiences of psychological trauma, and major mental disorders. The analyses compared demographics, psychological trauma, resilience, and the prevalence of major mental disorders based on alcoholism. The contribution of resilience to alcoholism was assessed utilizing Rao-Scott logistic regression, with adjustments made for confounding variables.
Results:
Individuals with both lifetime and 1-year alcohol use disorder and dependence exhibited significantly lower levels of resilience on the Connor-Davidson Resilience Scale. Diminished resilience predicted morbidity and persisted even after adjusting for depressive and anxiety disorders, psychological trauma, nicotine use disorders, age, gender, education, income, marital status, and occupation.
Conclusion
Diminished resilience is a prognostic indicator of increased likelihood of both lifetime and current alcoholism in the general population.
3.Biportal endoscopic non-facetectomy foraminal decompression and discectomy (ligamentum flavum turn-down technique)
Dae-Young LEE ; Han-Bin JIN ; Hee Soo KIM ; Jun-Bum LEE ; Si-Young PARK ; Seung-Hwan KOOK
Asian Spine Journal 2025;19(2):259-266
This study introduces a novel biportal endoscopic foraminal decompression technique that minimizes bone removal while ensuring safe and effective nerve root decompression. Leveraging the accessory process as a key surgical landmark, this technique enables precise navigation and controlled turn-down of the ligamentum flavum (LF). A key advantage of this technique is its reduced requirement for bone resection, differing from traditional microscopic or uniportal endoscopic surgeries that often necessitate resection of the lateral isthmus or superior articular process. This technique is particularly beneficial for foraminal and extraforaminal herniated nucleus pulposus cases, where bony decompression needs are relatively lower compared to foraminal stenosis. Using the accessory process as a landmark also enhances surgical precision and reduces the risk of nerve root injury, providing a valuable advantage for less experienced surgeons. Despite these advantages, challenges exist, particularly at the L5–S1 level, where the less prominent accessory process and limited workspace due to anatomical constraints can pose difficulties. In cases of severe bony compression, additional bone removal may be necessary to achieve adequate decompression. In conclusion, the Non-facetectomy LF turn-down technique (non-facetectomy foraminal decompression) offers a safe and effective minimally invasive alternative for treating various foraminal pathologies.
4.Associations of dietary patterns and lower urinary tract symptoms (LUTS) in Korean adults
Jung-Sun LIM ; Wonkyung HWANG ; Jung Kwon KIM ; Minhyun KIM ; Oran KWON ; Sujeong HAN ; Bumjo OH ; Jong Seung KIM
Nutrition Research and Practice 2025;19(2):318-327
BACKGROUND/OBJECTIVES:
Dietary factors act on lower urinary tract symptoms (LUTS).This study examined the relationship between the overall diet quality and LUTS.
SUBJECTS/METHODS:
This study analyzed the data from examinees who visited a general hospital in Korea (October 13, 2014−March 12, 2020). The number of subjects in the study was 6,506 adult men. The recommended food score was used to evaluate the overall quality of the diet, and the International Prostate Symptom Score was used to quantify LUTS. Logistic regression analysis was used to derive the odds ratio (OR) and 95% confidence interval (CI) to evaluate the relationship between the dietary quality and LUTS. The influence of age, education, marital history, income, occupation, smoking, drinking, exercise, metabolic syndrome, body mass index (BMI), and prostate-specific antigen (PSA) level was analyzed to determine the net influence of the overall diet quality on LUTS.
RESULTS:
The group with high overall dietary quality showed a lower incidence of LUTS than the group with relatively lower dietary quality (OR, 0.88; 95% CI, 0.79–0.99). These results were also observed after correcting for other risk factors and associated variables: age, education, smoking, metabolic syndrome, BMI, and PSA level.
CONCLUSION
The overall diet quality and LUTS were correlated. Nevertheless, further research will be needed to find the relationship between diet quality and LUTS.
5.The role of placenta Hofbauer cells during pregnancy and pregnancy complications
Seung-Woo YANG ; Han-Sung HWANG ; Young-Sun KANG
Obstetrics & Gynecology Science 2025;68(1):9-17
Placental Hofbauer cells (HBCs) are specialized macrophages present in the human placenta that play a crucial role in maintaining a healthy pregnancy. These cells are derived from the fetal mesoderm and are responsible for various functions, including immune regulation, angiogenesis, and nutrient transport. In normal pregnancies, HBCs primarily exhibit an M2 or immunomodulatory phenotype, which helps maintain a tolerant and antiinflammatory environment at the maternal-fetal interface. However, in pregnancies complicated by conditions such as immunological disorders, inflammation, or infection, the phenotype and function of HBCs may be altered. Although emerging evidence has highlighted the vital role of HBCs in both normal pregnancies and those with complications, such as chorioamnionitis, gestational diabetes, preeclampsia, and viral infections, their role remains unclear. Recent research also suggests a relationship between HBCs and the development of diseases in offspring. Understanding the role of HBCs in pregnancy could provide insights into the pathophysiology of various pregnancy-related disorders and offer potential therapeutic targets for improving maternal and fetal outcomes. This review explores the functions of HBCs in normal pregnancy and their involvement in complications, emphasizing their potential as biomarkers or targets for interventions aimed at reducing the incidence of adverse pregnancy outcomes. Additionally, we reviewed their potential for perinatal research in recent studies.
6.Microbiological and clinical characteristics of vulvovaginitis in premenarcheal and postmenarcheal girls in a tertiary center in South Korea
Soo Jin PARK ; Ki Wook YUN ; Ji Yeon HAN ; Sung Woo KIM ; Jae Hyeon PARK ; Hoon KIM ; Eun Hwa CHOI ; Seung-Yup KU
Obstetrics & Gynecology Science 2025;68(2):163-173
Objective:
To analyze the microbiological and clinical characteristics of vulvovaginitis in girls, distinguishing between the premenarcheal and postmenarcheal groups in a tertiary center in South Korea.
Methods:
This retrospective cohort study included 195 patients under 20 years of age diagnosed with vulvovaginitis at a tertiary hospital between 2014 and 2023. The patients were categorized into premenarcheal (n=95) and postmenarcheal (n=100) groups. Data on initial symptoms, microbial cultures, and treatment methods were analyzed.
Results:
The most common initial symptom was vaginal discharge, reported in 63.1% of cases. Culture results showed a 51.3% positivity rate for any microorganism, with a prevalence of gram-negative rods (32.8%) and gram-positive cocci (14.4%). The most frequently isolated microorganisms were Escherichia coli (17.9%), Candida albicans (7.7%), and Enterococcus faecalis (6.7%). Gram-negative rods were more common in the premenarcheal group (37.1% vs. 25.0%; p=0.01). No significant differences were observed in the prevalence of gram-positive cocci and Candida species between the two groups (16.8% vs. 12.0%, p=0.22; 6.3% vs. 13.0%, p=0.09; respectively). The susceptibilities of grampositive microorganisms to penicillin, oxacillin, clindamycin, vancomycin, and tetracycline were 58.8%, 58.3%, 94.7%, 100.0%, and 73.7%, respectively. The susceptibilities of gram-negative microorganisms to amoxicillin/clavulanic acid, ciprofloxacin, ceftriaxone, and nitrofurantoin were 89.3%, 85.3%, 76.0%, and 100.0%, respectively.
Conclusion
This study identified differences in the microbial profiles associated with vulvovaginitis between premenarcheal and postmenarcheal girls. Age-specific and history-based clinical approaches tailored to menarcheal status are warranted to improve the management and outcomes of pediatric and adolescent vulvovaginitis.
7.Personality Typing and Body Dissatisfaction in Korean Young Adults: Which Personality Type Is More Dissatisfied With Their Body Image?
Psychiatry Investigation 2025;22(2):186-195
Objective:
Previous studies showed that personality traits, which influences self-perception, anger expression and coping mechanisms, are associated with body dissatisfaction in various ways. However, few studies investigated the role of personality traits on body dissatisfaction in Korea. The aim of this study was to identify specific personality characteristics associated with body dissatisfaction and categorize participants into subgroups of potential clinical significance.
Methods:
In total, 345 adults in Korea completed the Body Dysmorphic Disorder Examination Self-Report, HEXACO Personality-Inventory-Revised, paranoia, borderline features, antisocial features of the Personality Assessment Inventory, the Ways of Coping Checklist, and the State-Trait Anger Expression Inventory. Cluster analysis was performed to categorize participants.
Results:
It showed that major contributing factors of body dissatisfaction among young adults were identity problems, anger in, and resentment. Cluster analysis resulted in three personality types, cluster 1 exhibited introverted and lack of ability to cope with stress and control anger, cluster 2 was characterized by honesty, humility, extraversion, amiability, and conscientiousness, and cluster 3 displayed socially aversive behavior, highly emotional traits, and passive coping skills. Cluster 2 was associated with lower body dissatisfaction compared to cluster 1 and 3.
Conclusion
This study indicates the pivotal role of personality traits in understanding and addressing body dissatisfaction. Identification of specific personality types offers insights for tailored treatment strategies, suggesting potential implications for treatment outcomes and prognosis. Clinicians should also be aware of the body dissatisfaction when seeing patients with introverted, socially aversive, emotional personality traits or who lack ability to manage stress and anger.
8.Peptic Ulcer Disease
The Korean Journal of Helicobacter and Upper Gastrointestinal Research 2025;25(1):13-16
Although the incidence and complications of peptic ulcer disease have declined, Helicobacter pylori infection and nonsteroidal anti-inflammatory drug use remain key risk factors. Advances in proton pump inhibitors and potassium-competitive acid blockers have improved treatment outcomes. However, increasing antibiotic resistance has reduced the efficacy of the standard therapies for H. pylori eradication, necessitating the development of new approaches such as novel antibiotic combinations and bismuth-based regimens. Future studies should emphasize tailored strategies to address resistance and the development of innovative anti-ulcer therapies to enhance eradication and prevention efforts.
9.Sex-specific impact of the COVID-19 outbreak on the incidence of metabolic syndrome: a comparative study of 2018–2019 and 2020–2021
Kyeong-Hyeon CHUN ; Hyun-Jin KIM ; Dae Ryong KANG ; Jang Young KIM ; Wonjin KIM ; Yong Whi JEONG ; Seung Hwan HAN ; Kwang Kon KOH ;
The Korean Journal of Internal Medicine 2025;40(2):262-274
Background/Aims:
The coronavirus disease 2019 (COVID-19) pandemic has significantly impacted global health, exacerbated metabolic health issues, and altered lifestyle behaviors. This study examined the sex-specific impact of the COVID-19 outbreak on the incidence of metabolic syndrome using data from the Korea National Health and Nutrition Examination Survey (KNHANES).
Methods:
Data from the KNHANES VII (2018) and VIII (2019–2021), including 15,499 participants, were analyzed. The study population was stratified by sex, and further subdivisions were conducted based on the timeframe relative to the COVID-19 outbreak. Variables such as age, education level, household income, smoking status, and high-risk drinking were analyzed to assess their influence on the prevalence of metabolic syndrome.
Results:
The overall prevalence of metabolic syndrome significantly increased from 28.11% before the outbreak to 29.69% after the outbreak. Both males and females reported significant increases in waist circumference and fasting glucose levels. Age and education level differentially influenced the prevalence of metabolic syndrome between the sex. Smoking was significantly associated with increased prevalence in males, whereas high-risk drinking was associated with increased prevalence in males and decreased prevalence in females.
Conclusions
The COVID-19 pandemic has significantly increased the prevalence of metabolic syndrome with notable sex-specific differences. These findings highlight the need for sex-specific public health interventions to mitigate the impact of the pandemic on metabolic health.
10.Association between Breakfast Consumption Frequency and Chronic Inflammation in Korean Adult Males: Korea National Health and Nutrition Examination Survey 2016–2018
Eun Ji HAN ; Eun Ju PARK ; Sae Rom LEE ; Sang Yeoup LEE ; Young Hye CHO ; Young In LEE ; Jung In CHOI ; Ryuk Jun KWON ; Soo Min SON ; Yun Jin KIM ; Jeong Gyu LEE ; Yu Hyeon YI ; Young Jin TAK ; Seung Hun LEE ; Gyu Lee KIM ; Young Jin RA
Korean Journal of Family Medicine 2025;46(2):92-97
Background:
Skipping breakfast is associated with an increased risk of chronic inflammatory diseases. This study aimed to examine the association between breakfast-eating habits and inflammation, using high-sensitivity C-reactive protein (hs-CRP) as a marker.
Methods:
A total of 4,000 Korean adult males with no history of myocardial infarction, angina, stroke, diabetes, rheumatoid arthritis, cancer, or current smoking were included. Data from the 2016–2018 Korea National Health and Nutrition Examination Survey were used for analysis. The frequency of breakfast consumption was assessed through a questionnaire item in the dietary survey section asking participants about their weekly breakfast consumption routines over the past year. Participants were categorized into two groups, namely “0–2 breakfasts per week” and “3–7 breakfasts per week”; hs-CRP concentrations were measured through blood tests.
Results:
Comparing between the “infrequent breakfast consumption (0–2 breakfasts per week)” and “frequent breakfast consumption (3–7 breakfasts per week)” groups, the mean hs-CRP was found to be significantly higher in the “infrequent breakfast consumption” group, even after adjusting for age, body mass index, physical activity, alcohol consumption, systolic blood pressure, blood pressure medication, fasting blood glucose, and triglycerides (mean hs-CRP: frequent breakfast consumption, 1.36±0.09 mg/L; infrequent breakfast consumption, 1.17±0.05 mg/L; P-value=0.036).
Conclusion
Less frequent breakfast consumption was associated with elevated hs-CRP levels. Further large-scale studies incorporating adjusted measures of daily eating patterns as well as food quality and quantity are required for a deeper understanding of the role of breakfast in the primary prevention of chronic inflammatory diseases.

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