Citations
, Ssirai Kim, Sun Young Lee This study reviewed quantitative research on the health of sexual and gender minorities (SGMs) in Korea and aimed to propose a role for healthcare professionals in improving their health and access to medical care. We searched PubMed through February 29, 2024 for articles published since 2000, using terms related to SGMs and the keyword “Korea.” This process yielded 33 quantitative studies on Korean SGMs. Of these, 17 focused on sexual minorities and 16 on gender minorities. The findings indicate that Korean SGMs experience many symptoms of depression and anxiety, as well as high rates of suicidal ideation, planning, and attempts. They also report diminished health-related quality of life. SGM individuals who have faced discrimination or pressure to change their sexual or gender identity face an elevated risk of mental health issues. To improve the health of Korean SGMs and improve their access to healthcare, we recommend several approaches. First, more research on the health of Korean SGMs is necessary. Second, education and training programs for health professionals are essential to promote their understanding of SGM health issues and their advocacy for SGM health. Third, strategies are required to develop and implement program interventions that improve SGM health, such as increasing the availability of gender-affirming care, which is known to benefit the health of transgender and gender-diverse individuals. Finally, healthcare professionals should actively advocate for SGM health and call for shifts in public perception and institutional change, grounded in a broad understanding of SGMs and their health needs.
Citations
Coronary artery disease (CAD) remains the leading cause of mortality worldwide, driven primarily by atherogenesis. Recent efforts to understand sex differences in CAD have revealed distinct patterns in disease burden, risk factors, and clinical presentations. This review examines these sex differences in CAD, underscoring the importance of customized diagnostic and management strategies. Although men typically have higher rates of CAD prevalence and incidence, women face unique challenges, such as delayed diagnosis, atypical symptoms, and lower rates of medication prescription. Hormonal, genetic, and lifestyle factors all play a role in these disparities, with estrogen notably reducing CAD risk in women. Nontraditional risk factors, including chronic inflammation, psychological stress, socioeconomic status, and reproductive history, also contribute to CAD development and are often neglected in clinical settings. Addressing these differences requires increased awareness, more accurate diagnosis, and equitable healthcare access for both sexes. Furthermore, greater inclusion of women in CAD research is essential to better understand sex-specific mechanisms and optimize treatment outcomes. Personalizing CAD management based on sex-specific knowledge has the potential to improve prognosis and decrease disease incidence for both men and women.
Citations
, Heisook Lee This review aims to highlight the importance of research on structural, functional, molecular-biological, and disease-specific sex differences in the brain, and to examine current bibliometric indicators related to research on sex differences. The Web of Science Core Collection was searched for related articles from 2010 to 2023. Structural and functional brain differences according to sex, including variations in communication patterns between hemispheres, may play a role in mental disorders. Sex differences in neurotransmitters such as serotonin, dopamine, and γ-aminobutyric acid contribute to disparities in mental health, addiction, and neurodevelopmental conditions. Neurodevelopmental disorders such as autism spectrum disorder and schizophrenia exhibit sex-based differences in prevalence, symptoms, brain changes, and neurotransmitter disruptions under hormonal influence. There is a growing body of research on depression, adolescence, the hippocampus, the amygdala, and cognition, highlighting the importance of considering sex/gender factors. Recent studies on sex differences in brain diseases have identified variations in brain structure, function, and neurophysiological substances, as well as in hormones and genes between the sexes. The incidence of psychiatric disorders such as autism spectrum disorder, depression, anxiety, and Alzheimer’s disease is increasingly being linked to sex differences, and the need for research into the mechanisms underlying these differences is gaining recognition. However, there remains a significant gap in sex-specific neuroscience research related to the diagnosis, treatment, prevention, and management of these conditions. Advancing inclusive research will require comprehensive training, a consensus on methodology, diverse perspectives through collaborative frameworks, governmental/institutional support, and dedicated funding to create suitable research environments and implementation strategies.
Citations
, Won Kim Understanding the effects of sex and sex differences on liver health and disease is crucial for individualized healthcare and informed decision-making for patients with liver disease. The impact of sex on liver disease varies according to its etiology. Women have a lower prevalence of metabolic dysfunction-associated steatotic liver disease (MASLD) than men. However, postmenopausal women face a higher risk of advanced liver fibrosis due to hormonal influences. Sex differences affect the pathogenesis of MASLD, which involves a complex process involving several factors such as hormones, obesity, and the gut microbiome. Furthermore, sex-related differences in the development of MASLDrelated hepatocellular carcinoma have been observed. The sex-specific characteristics of MASLD necessitate an individualized management approach based on scientific evidence. However, research in this area has been lacking. This article reviews the current understanding of sex differences in MASLD.
Citations
, Eunha Kim Neurodevelopmental disorders, which emerge early in development, include a range of neurological phenotypes and exhibit marked differences in prevalence between sexes. A male predominance is particularly pronounced in autism spectrum disorder (ASD). Although the precise cause of ASD is still unknown, certain genetic variations and environmental influences have been implicated as risk factors. Preclinical ASD models have been instrumental in shedding light on the mechanisms behind the sexual dimorphism observed in this disorder. In this review, we explore the potential processes contributing to sex bias by examining both intrinsic differences in neuronal mechanisms and the influence of external factors. We organize these mechanisms into six categories: 1) sexually dimorphic phenotypes in mice with mutations in ASD-associated genes related to synaptic dysfunction; 2) sex-specific microglial activity, which may disrupt neural circuit development by excessively pruning synapses during critical periods; 3) sex steroid hormones, such as testosterone and allopregnanolone, that differentially influence brain structure and function; 4) escape from X chromosome inactivation of the O-linked-N-acetylglucosamine transferase gene in the placenta; 5) sexually dimorphic activation of the integrated stress response pathway following maternal immune activation; and 6) immunological responses that are differentially regulated by sex. Understanding these mechanisms is essential for deciphering the underlying causes of ASD and may offer insights into other disorders with notable sex disparities.
, Jieun Jang, Nayoung Kim Citations
, Jongmin Oh, Eunji Mun, Jung Eun Choi, Kyung Hee Kim, Ji Hyen Lee, Hae Soon Kim, Eunhee Ha The worldwide incidence of precocious puberty, which is associated with negative health outcomes, is increasing. Several studies have suggested that environmental factors contribute to the development of precocious puberty alongside genetic factors. Some epidemiological studies have provided limited evidence suggesting an association between exposure to air pollution and changes in pubertal development. This systematic review aimed to summarize existing evidence on the association between air pollution exposure and precocious puberty. Following the Preferred Reporting Items for Systematic reviews and Meta-Analyses guidelines, we searched two databases (PubMed and Web of Science) until August 2023. The included studies assessed the association between air pollutant exposure and the risk of precocious puberty, early menarche, or pubertal development. Two authors independently performed study selection and data extraction. A meta-analysis and analysis of the risk of bias were infeasible due to the limited number of studies and the heterogeneity among them. The literature search resulted in 184 studies, from which we included six studies with sample sizes ranging from 437 to 4,074 participants. The studies reported heterogeneous outcomes. Four studies found that increased exposure to air pollution was related to earlier pubertal onset. One study was inconclusive, and another suggested that air pollutant exposure may delay the onset of thelarche. Most studies suggest that exposure to air pollutants accelerates pubertal development; however, the results from the available studies are inconsistent. More extensive and well-designed longitudinal studies are required for a comprehensive understanding of the association between air pollution and precocious puberty.
Citations
, Karina Sylvana Gani, Erica Kholinne A Bankart lesion is a tear of the labrum, the ring of cartilage that encircles the shoulder joint socket, that can occur when the shoulder is dislocated. This injury frequently affects young athletes and is associated with shoulder instability. This review was performed to provide an overview of anterior shoulder instability, with an emphasis on rehabilitation and the return to sports following arthroscopic Bankart repair. We searched the Google Scholar and PubMed academic databases through February 18th, 2024, utilizing keywords including “arthroscopic Bankart repair” and “return to sports”. Our findings indicate that athletes who undergo arthroscopic Bankart repair exhibit higher rates of returning to sports compared to those who receive other anterior shoulder stabilization procedures. Several factors are considered when determining readiness to return to athletics, including time elapsed since surgery, type of sport, strength, range of motion, pain, and proprioception. Surgeons typically advise athletes to wait approximately 6 months after surgery before resuming sports activities. They also recommend that athletes regain at least 80% of the strength of the uninjured shoulder or achieve strength levels comparable to those prior to the injury. Additionally, patients are expected to attain a full range of motion without pain, which should be symmetrical to the uninjured side, and demonstrate improved proprioception in the shoulder. The sport in which an athlete participates can also influence the timeline for return. Those involved in overhead sports, like baseball or tennis, often experience lower success rates in returning to their sport compared to athletes from other disciplines.
, Ryung-Ah Lee The capabilities of artificial intelligence (AI) have recently surged, largely due to advancements in deep learning inspired by the structure and function of the neural networks of the human brain. In the medical field, the impact of AI spans from diagnostics and treatment recommendations to patient engagement and monitoring, considerably improving efficiency and outcomes. The clinical integration of AI has also been examined in specialties, including pathology, radiology, and oncology. General surgery primarily involves manual manipulation and includes preoperative, intraoperative, and postoperative care, all of which are critical for saving lives. Other fields have strived to utilize and adopt AI; nonetheless, general surgery appears to have retrogressed. In this review, we analyzed the published research, to understand how the application of AI in general surgery differs from that in other medical fields. Based on previous research in other fields, the application of AI in the preoperative stage is nearing feasibility. Ongoing research efforts aim to utilize AI to improve and predict operative outcomes, enhance performance, and improve patient care. However, the use of AI in the operating room remains significantly understudied. Moreover, ethical responsibilities are associated with such research, necessitating extensive work to gather evidence. By fostering interdisciplinary collaboration and leveraging lessons from AI success stories in other fields, AI tools could be specifically tailored for general surgery. Surgeons should be prepared for the integration of AI into clinical practice to achieve better outcomes; therefore, the time has come to consider ethical and legal implications.
Citations
, So Hyun Ahn, Rena Lee This study aimed to develop an accurate pediatric bone age prediction model by utilizing deep learning models and contrast conversion techniques, in order to improve growth assessment and clinical decision-making in clinical practice.
The study employed a variety of deep learning models and contrast conversion techniques to predict bone age. The training dataset consisted of pediatric left-hand X-ray images, each annotated with bone age and sex information. Deep learning models, including a convolutional neural network , Residual Network 50 , Visual Geometry Group 19, Inception V3, and Xception were trained and assessed using the mean absolute error (MAE). For the test data, contrast conversion techniques including fuzzy contrast enhancement, contrast limited adaptive histogram equalization (HE) , and HE were implemented. The quality of the images was evaluated using peak signal-to-noise ratio (SNR), mean squared error, SNR, coefficient of variation, and contrast-to-noise ratio metrics. The bone age prediction results using the test data were evaluated based on the MAE and root mean square error, and the t-test was performed.
The Xception model showed the best performance (MAE=41.12). HE exhibited superior image quality, with higher SNR and coefficient of variation values than other methods. Additionally, HE demonstrated the highest contrast among the techniques assessed, with a contrast-to-noise ratio value of 1.29. Improvements in bone age prediction resulted in a decline in MAE from 2.11 to 0.24, along with a decrease in root mean square error from 0.21 to 0.02.
This study demonstrates that preprocessing the data before model training does not significantly affect the performance of bone age prediction when comparing contrast-converted images with original images.
Citations
, Sooyoung Huh, Haesook Seo During the COVID-19 pandemic, the first seasonal influenza epidemic was declared in the 37th week of 2022 in Korea and has continued through the winter of 2023–2024. However, this finding has not been observed in the United States and Europe. The present study aimed to determine whether the prolonged influenza epidemic in Korea from 2022 to 2023 was caused by using a different influenza epidemic threshold compared to the thresholds used in the United States and Europe.
Korea, the United States, and Europe use different methods to set seasonal influenza epidemic thresholds. First, we calculated the influenza epidemic thresholds for influenza seasons using the different methods of those three regions. Using these epidemic thresholds, we then compared the duration of influenza epidemics for the most recent three influenza seasons.
The epidemic thresholds estimated by the Korean method were lower than those by the other methods, and the epidemic periods defined using the Korean threshold were estimated to be longer than those defined by the other regions’ thresholds.
A low influenza epidemic threshold may have contributed to the prolonged influenza epidemic in Korea, which was declared in 2022 and has continued until late 2023. A more reliable epidemic threshold for seasonal influenza surveillance needs to be established in Korea.
Citations
, Erica Kholinne, Suk-Joong Lee, Jong Pil Yoon, Jun Tan
, In-Ho Jeon This study aimed to quantify the relationship between proximal humeral rotation and the lateral border of the bicipital groove on fluoroscopic imaging.
A composite normal humerus with a marker placed on the lateral border of the bicipital groove was affixed to a custom rotation device at the proximal cut segment. Consecutive fluoroscopic images were captured from −60° to 60° in 5° increments and from −15° to 15° in 1° increments. The index value was calculated by taking the ratio of the distance from the medial boundary of the proximal humerus to the lateral border of the bicipital groove to the distance between the medial and lateral boundaries of the proximal humerus. The correlation between the humeral rotation and the index value was determined.
The index value showed a strong positive linear correlation position during internal rotation of the humerus across the entire range (r=0.998, P<0.001), as well as when the humerus was externally rotated, ranging from 15° of internal rotation to 15° of external rotation (r=0.991, P<0.001).
The lateral border of the bicipital groove may serve as a useful intraoperative landmark for assessing proximal humeral rotation. This could potentially enhance the outcomes of humeral fracture repair and upper arm arthroplasty.
, In-Young Yoon, Dong Yeon Kim, Sooyoung Cho OxyMask, a novel product, has recently been used to administer oxygen postoperatively to patients who have undergone general anesthesia. This study aimed to evaluate the incidence of hypoxia in patients under general anesthesia upon arrival to the post-anesthesia care unit (PACU) using arterial blood gas analysis, and to compare the effectiveness of OxyMask with a non-rebreathing oxygen mask for oxygen administration.
We retrospectively investigated anesthesia-related data from the electronic medical records of 460 patients treated from April to November 2021. We analyzed patients aged 20 years or older who had undergone general anesthesia and whose perioperative arterial blood gas analysis results were available upon arrival to the PACU. These patients were grouped into the non-rebreathing oxygen mask (n=223) and OxyMask (n=237) groups, and statistical analysis was performed utilizing their anesthesia records.
No patients exhibited hypoxia upon arrival to the recovery room. The oxygen concentration increased after oxygen administration; its concentration during the recovery room period (Δ2 PaO2) was 10.7±42.3 and 13.9±38.5 mmHg in the non-rebreathing oxygen mask and OxyMask groups, respectively. This difference was not statistically significant. Moreover, the arterial oxygen saturation between the end of surgery and upon arrival to the PACU (Δ1 SaO2) and the arterial oxygen saturation 20 minutes after oxygen administration at the PACU (Δ2 SaO2) did not significantly differ between the groups.
OxyMask was not superior to a non-rebreathing oxygen mask in terms of the effectiveness of oxygen supply.
This study analyzed drug-induced death statistics in Korea between 2011 and 2021.
Cause-of-death statistics data from Statistics Korea were examined based on the Korean Standard Classification of Diseases and Causes of Death and the International Statistical Classification of Diseases and Related Health Problems, 10th revision.
In 2021, there were 559 drug-induced deaths, marking a 172.7% increase compared to 2011, which recorded 205 deaths. The rate of drug-induced deaths per 100,000 people was 1.1 in 2021, up 153.6% from 0.4 in 2011. The mortality rate for men aged 25−34 years and women aged 35−44 years each increased fourfold from 2011 to 2021: from 0.3 to 1.2 for the former and 0.3 to 1.3 for the latter. Of the drug-induced deaths in 2021, 75.0% (419/559) were due to intentional self-harm, and 10.4% (58/559) were accidental. The number of deaths attributed to medical narcotics in 2021 was 169, a 5.5-fold increase from 2011. The most commonly implicated drugs in these deaths were sedative-hypnotic drugs, benzodiazepines, and opioids. Sedative-hypnotic drugs and benzodiazepines were frequently involved in cases of intentional self-harm, while opioids and psychostimulants were more often associated with accidental deaths.
The death rate from drug-induced causes is considerably lower in Korea than in the United States (1.1 vs. 29.2). However, the number of such deaths has increased recently. Since these deaths occur predominantly among younger age groups and are often the result of intentional self-harm, there is a clear need for systematic management and the implementation of targeted policies.
Citations
, Gwang Ha Kim, Dong Chan Joo, Moon Won Lee, Bong Eun Lee, Kyung Bin Kim We report a rare case of gastric adenocarcinoma with enteroblastic differentiation (GAED) that was treated with endoscopic submucosal dissection followed by additional distal gastrectomy with lymph node dissection. A 67-year-old man underwent endoscopic submucosal dissection for a gastric lesion, which was diagnosed as GAED with submucosal and lymphatic invasion. Histologically, GAED is characterized by a tubulopapillary growth pattern and clear cells that resemble those of the primitive fetal gut. Immunohistochemically, GAED variably expresses oncofetal proteins such as glypican-3, alpha-fetoprotein, and spalt-like transcription factor 4. Despite negative margins, additional gastrectomy with lymph node dissection was performed due to submucosal and lymphatic invasion. No residual tumor or metastasis was detected, and the patient remained disease-free for 2 years before dying from causes unrelated to GAED. Given its aggressive nature, frequent lymphovascular invasion, and high metastatic potential, clinicians should recognize the histopathological diagnosis of this rare tumor and its propensity for aggressiveness.
, Yoon Jin Choi, Ji Yeon Byun, You Won Choi, Joo Young Roh, Hae Young Choi Nontuberculous mycobacterial infections, which are often acquired from environmental sources such as water and soil, exhibit a variety of cutaneous manifestations that frequently lead to misdiagnoses and delays in treatment. A 77-year-old woman presented with multiple skin lesions in a sporotricoid distribution on her right leg, which persisted despite standard antibiotic treatments. Based on the skin biopsy, revealing granulomatous inflammation with acid-fast bacilli, and PCR testing, a nontuberculous mycobacterial infection was diagnosed. Antimycobacterial drug combinations, including clarithromycin, isoniazid, and rifampicin for 4 months, complete the skin lesion's clearance. This case underscores the need for heightened suspicion and the use of appropriate diagnostic techniques, including tissue biopsies and molecular methods such as PCR.
Citations
, Min Hyouk Beak, Won-joong Kim Although sciatica is commonly associated with lumbar spinal issues, it is important to acknowledge that non-spinal factors can also play a significant role in this condition. This is particularly relevant for female patients, in whom gynecologic conditions can lead to secondary sciatic neuropathy. Herein, we report the case of a 66-year-old woman who experienced posterolateral right lower extremity radiating pain. We initially performed a lumbar transforaminal epidural steroid injection, but the pain persisted. Subsequently, hip MRI revealed sciatic neuropathy adjacent to the pedunculated portions of a uterine myoma. We then performed a sub-gluteal sciatic nerve block under ultrasound guidance, resulting in significant relief of her pain. In conclusion, hip MRI can be helpful for the differential diagnosis of sciatica, and ultrasound-guided sciatic nerve block can be considered an appropriate and effective treatment option.
Citations
, Erik von Elm
, Douglas G. Altman
, Peter C. Gøtzsche, Cynthia D. Mulrow
, Stuart J. Pocock, Charles Poole, James J. Schlesselman, Matthias Egger 의학 연구의 대부분은 관찰 연구이다. 관찰 연구의 보고는 종종 불충분한 품질을 보이기도 한다. 부실한 보고는 연구의 강점과 약점을 평가하고 연구
결과의 일반화 가능성을 평가하는 데 방해가 된다. 방법론 전문가, 연구자, 편집자 그룹은 경험적 근거와 이론적 고려 사항을 고려하여 관찰 연구
보고의 질을 개선하기 위한 역학 STROBE 권고안을 개발했다. STROBE statement은 논문의 제목, 초록, 서론, 방법, 결과 및
토론 부분에 대한 22개 항목의 체크리스트로 구성되어 있다. 18개 항목은 코호트연구, 환자 대조군 연구, 단면연구에 공통으로 적용되며, 4개
항목은 세 가지 연구설계 각각에 따라 다르다. STROBE statement는 저자에게 관찰 연구에 대한 보고를 개선하는 방법에 대한 지침을
제공하고 심사자, 편집자 및 독자가 연구를 비판적으로 평가하고 해석하는 데 도움이 된다. 이 설명 문서는 STROBE statement의 사용,
이해 및 보급을 향상 시키는 것이 목적이다. 각 체크리스트 항목의 의미와 근거가 제시되어 있다. 각 항목에 대해 하나 또는 여러 개의 출판된
예시 논문과 가능한 경우 관련 경험적 연구 및 방법론 문헌에 대한 내용이 참고사항으로 제공된다. 유용한 흐름도의 예도 포함되어 있다. 본 문서
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