44,673 results match your criteria: "Yonsei University College of Medicine & Gangnam Severance Hospital[Affiliation]"

Purpose: Fibroblast growth factor receptor 2 isoform IIIb (FGFR2b) protein overexpression is an emerging biomarker in gastric cancer and gastroesophageal junction cancer (GC). We assessed FGFR2b protein overexpression prevalence in nearly 3,800 tumor samples as part of the prescreening process for a global phase III study in patients with newly diagnosed advanced or metastatic GC.

Methods: As of June 28, 2024, 3,782 tumor samples from prescreened patients from 37 countries for the phase III FORTITUDE-101 trial (ClinicalTrials.

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Background: To date, no studies have evaluated the longevity of calcaneal lengthening osteotomy (CLO) in patients with cerebral palsy (CP) and pes planovalgus. This study aimed to explore the changes in foot alignment following CLO in patients with CP, utilizing both radiographic evaluations and dynamic foot-pressure assessments.

Methods: A retrospective study of 282 feet in 180 ambulatory patients was performed.

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Objective: To describe the incidence rates of inflammatory bowel disease (IBD) and tuberculosis (TB) in Korean patients with ankylosing spondylitis receiving biologics.

Methods: Data from a Korean claims database between 2010 and 2021 was used to calculate crude incidence rates of TB and IBD using number of events and total patient-years (PYs).

Results: Overall, 43 643 and 43 396 patients were included in TB and IBD cohorts.

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Is presumed clinical stage I endometrial cancer using PET-CT and MRI accurate in predicting surgical staging?

J Gynecol Oncol

January 2025

Department of Obstetrics and Gynecology, Institute of Women's Life Medical Science, Yonsei University College of Medicine, Seoul, Korea.

Objective: To evaluate upstaging, lymph node (LN) metastasis, and recurrence in patients with presumed stage I endometrial cancer using preoperative magnetic resonance imaging (MRI) and positron emission tomography-computed tomography (PET-CT).

Methods: Retrospective review of 422 patients with presumed clinical stage I endometrial cancer diagnosed via MRI and PET-CT (July 2014-June 2023). Surgical staging included pelvic lymph nodes (PLNs) and para-aortic lymph nodes (PALNs), classifying patients as low/intermediate- or high-risk groups.

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GPR119 has emerged as a promising target for treating type 2 diabetes and associated obesity, as its stimulation induces the secretion of glucagon-like peptide-1 and glucose-dependent insulinotropic peptide in the intestinal tract as well as the glucose-dependent release of insulin in pancreatic β-cells. We describe the design and synthesis of novel GPR119 agonists containing a 1,4-disubstituted cyclohexene scaffold. Compound displayed nanomolar potency (EC = 3.

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Preference for On-Demand Fexuprazan Therapy in Gastroesophageal Reflux Disease: A Prospective Cohort Study.

J Pers Med

January 2025

Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri 11923, Republic of Korea.

Maintenance therapy is crucial in managing and preventing symptom relapse in gastroesophageal reflux disease (GERD), with continuous and on-demand therapy being the common approaches. However, maintenance therapy using potassium-competitive acid blockers (P-CABs), such as fexuprazan, remains incompletely evaluated. This single-center, single-arm, prospective cohort study enrolled individuals with weekly heartburn or acid regurgitation and confirmed erosive esophagitis.

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Role of Hypothalamus in Acupuncture's Effects.

Brain Sci

January 2025

Department of Physiology, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea.

The significant correlation between ancient medicinal practices and brain function marks a revolutionary frontier in the field of neuroscience. Acupuncture, a traditional oriental medicine, can affect brain regions, such as the hypothalamus, anterior cingulate, posterior cingulate, and hippocampus, and produces specific therapeutic effects, such as pain relief, suppression of hypertension, and alleviation of drug addiction. Among the brain regions, the hypothalamus, a small yet critical region in the brain, plays a pivotal role in maintaining homeostasis by regulating a wide array of physiological processes, including stress responses, energy balance, and pain modulation.

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Dynamic Importance of Genomic and Clinical Risk for Coronary Artery Disease Over the Life Course.

Circ Genom Precis Med

January 2025

Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston. (S.M.U., K.P., B.T., A.C.F., P.N.).

Background: Earlier identification of high coronary artery disease (CAD) risk individuals may enable more effective prevention strategies. However, existing 10-year risk frameworks are ineffective at earlier identification. We sought to understand how the variable importance of genomic and clinical factors across life stages may significantly improve lifelong CAD event prediction.

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Introduction: Delirium, frequently experienced by ischemic stroke patients, is one of the most common neuropsychiatric syndromes reported in the Intensive Care Unit (ICU). Stroke patients with delirium have a high mortality rate and lengthy hospitalization. For these reasons, early diagnosis of delirium in the ICU is critical for better patient prognosis.

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Background: In children and young adults, tumors in the chest and thoracic wall exhibit a wide variety of types, making it challenging to differentiate between benign and malignant cases before invasive histopathological examination.

Purpose: To evaluate the utility of apparent diffusion coefficient (ADC) for discriminating malignant thoracic masses in children and young adults.

Material And Methods: This retrospective study included chest magnetic resonance imaging (MRI) scans in patients aged <30 years.

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With the increasing emphasis on diversity, equity, and inclusion (DEI) in organizations and institutions, academic societies in gastroenterology and hepatology are beginning to take actionable steps toward achieving DEI. The successful implementation of DEI initiatives leads to excellence in the field, improved patient outcomes, particularly in areas where health disparities are prevalent, and advances in the gastrointestinal discipline. Such implementation also results in a workforce that better reflects the growing diversity of the population.

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Background: Uric acid has antioxidant properties, and several studies have suggested its neuroprotective effects. Despite reports of increased oxidative damage and decreased antioxidants in anxiety disorders, findings remain inconclusive. This study investigated the association between serum uric acid levels and anxiety symptoms, stratified by sex, using nationwide data from South Korea.

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Background: High-intensity physical activity has traditionally been discouraged in patients with hypertrophic cardiomyopathy due to concerns about triggering sudden cardiac death. However, current guidelines adopt a more liberal stance, and evidence on risk factors for exercise-related sudden cardiac death remains limited. This study investigated the clinical, morphological and genetic factors associated with high-intensity physical activity-related sudden cardiac death in hypertrophic cardiomyopathy.

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Background: Efficient emergency patient transport systems, which are crucial for delivering timely medical care to individuals in critical situations, face certain challenges. To address this, CONNECT-AI (CONnected Network for EMS Comprehensive Technical-Support using Artificial Intelligence), a novel digital platform, was introduced. This artificial intelligence (AI)-based network provides comprehensive technical support for the real-time sharing of medical information at the prehospital stage.

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Background: Intravascular ultrasound (IVUS) guidance has been shown to yield favorable outcomes for endovascular treatment of femoropopliteal artery (FPA) disease with drug-coated balloon (DCB) angioplasty. However, the specific benefits of IVUS for treatment of complex FPA lesions remain uncertain.

Objectives: In this study, the authors compared the clinical impact of IVUS-guided vs angiography-guided DCB angioplasty in patients with complex or noncomplex FPA lesions.

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Synthetic Bilirubin-Based Nanomedicine Protects Against Renal Ischemia/Reperfusion Injury Through Antioxidant and Immune-Modulating Activity.

Adv Healthc Mater

January 2025

Department of Biological Sciences, KAIST Institute for the BioCentury, Center for Precision Bio-Nanomedicine, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea.

Renal ischemia/reperfusion injury (IRI) is a common form of acute kidney injury. The basic mechanism underlying renal IRI is acute inflammation, where oxidative stress plays an important role. Although bilirubin exhibits potent reactive oxygen species (ROS)-scavenging properties, its clinical application is hindered by problems associated with solubility, stability, and toxicity.

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Deciphering the toxic effects of polystyrene nanoparticles on erythropoiesis at single-cell resolution.

Zool Res

January 2025

Department of Biomedical Informatics, School of Medicine, Pusan National University, Yangsan, Gyeongsangnam-do 50612, Republic of Korea.

Polystyrene nanoparticles pose significant toxicological risks to aquatic ecosystems, yet their impact on zebrafish ( ) embryonic development, particularly erythropoiesis, remains underexplored. This study used single-cell RNA sequencing to comprehensively evaluate the effects of polystyrene nanoparticle exposure on erythropoiesis in zebrafish embryos. validation experiments corroborated the transcriptomic findings, revealing that polystyrene nanoparticle exposure disrupted erythrocyte differentiation, as evidenced by the decrease in mature erythrocytes and concomitant increase in immature erythrocytes.

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Purpose: To assess the clinical efficacy of 0.1% cyclosporine A (CsA) in dry eye patients who have shown inadequate responses to previous treatment with 0.05% CsA.

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Multimodal treatments and the risk of breast cancer-related lymphedema: insights from a nationally representative cohort in South Korea.

BMC Cancer

January 2025

Department of Physical Medicine and Rehabilitation, Soonchunhyang University Hospital Seoul, Soonchunhyang University College of Medicine, 59, Daesagwan-ro, Yongsan-gu, Seoul, 04401, Republic of Korea.

Background: As the roles of chemotherapy (Chemo) and radiation therapy (Radio) in the definitive treatment of breast cancer have expanded, a broader understanding of the factors associated with breast cancer-related lymphedema (BCRL) has become increasingly essential. Therefore, we investigated the association between multimodality treatment and the risk of BCRL.

Methods: In this retrospective study conducted using National Health Insurance data and the Korea National Cancer Incidence Database (2006-2017), 114,638 participants who underwent Surgery (Surg) or Chemo within 6 months after breast cancer diagnosis were enrolled, and the effect of multimodality treatment on the risk of BCRL was analyzed using the Cox proportional-hazards model.

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Shoulder Aesthetics: A Novel Synergy of Hyaluronic Acid Fillers and Neuromodulators.

Aesthetic Plast Surg

January 2025

Medical Research Inc., Wonju, Korea.

The pursuit of aesthetically pleasing shoulder contours, particularly those characterised by a sharp, angular definition, has gained significant traction in Southeast Asia. Traditionally, neuromodulators have been used to achieve these results by inducing muscle atrophy, particularly in the trapezius muscles. However, this approach can carry potential risks, such as compromised muscle function and spinal instability.

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Comparison of Clinical Outcomes Between Two Types of Dipeptidyl Peptidase-4 Inhibitors in Posttransplant Diabetes Mellitus in Kidney Transplantation Recipients: A Nationwide Population-Based Cohort Study in Korea.

Transplant Proc

January 2025

Department of Nephrology, Comprehensive Kidney Disease Research Institute, Yonsei University Wonju College of Medicine, Wonju, Korea; National Health Big Data Clinical Research Institute, Wonju College of Medicine, Wonju, Republic of Korea; Transplantation Center, Yonsei Wonju Christian Hospital. Electronic address:

Background: Dipeptidyl peptidase-4 inhibitors (DPP-4i) are antidiabetic drugs known for their minimal side effects and limited drug interaction witih immunosuppressants, making them suitable for patients with diabetes and kidney transplant recipients. However, there is limited real-world information regarding the use of DPP-4 inhibitors in patients with post transplant diabetes mellitus (PTDM).

Method: We performed a retrospective observational cohort study of 13,828 kidney transplant recipients form Janary 1, 2002, through December 21, 2018, using the Korean National Health Information Database.

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Background: Intrathecal morphine is the standard for post-cesarean analgesia but often causes pruritus and may be unavailable in resource-limited settings. This study assessed whether a combination of bilateral transversus abdominis plane (TAP) block and intrathecal fentanyl provides non-inferior analgesia compared with intrathecal morphine following cesarean delivery within the multimodal analgesia context.

Methods: Eighty mothers were randomized to receive either intrathecal fentanyl 10 µg with bilateral TAP block using 15 mL of 0.

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Association of workplace toilet access with urinary tract symptoms and productivity loss among female workers.

Ind Health

January 2025

Department of Occupational and Environmental Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Republic of Korea.

This study investigated workplace toilet access related to lower urinary tract symptoms (LUTS) among women in the Korean workforce. A cross-sectional survey was conducted to determine demographic characteristics, occupational risk factors, and urinary tract symptoms among employed Korean women. Occupational risk factors included two survey questions about access to toilets at work.

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Artificial intelligence-enhanced comprehensive assessment of the aortic valve stenosis continuum in echocardiography.

EBioMedicine

January 2025

CONNECT-AI Research Center, Yonsei University College of Medicine, Seoul, Republic of Korea; Ontact Health Inc., Seoul, Republic of Korea; Division of Cardiology, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Yonsei University Health System, Seoul, Republic of Korea.

Background: Transthoracic echocardiography (TTE) is the primary modality for diagnosing aortic stenosis (AS), yet it requires skilled operators and can be resource-intensive. We developed and validated an artificial intelligence (AI)-based system for evaluating AS that is effective in both resource-limited and advanced settings.

Methods: We created a dual-pathway AI system for AS evaluation using a nationwide echocardiographic dataset (developmental dataset, n = 8427): 1) a deep learning (DL)-based AS continuum assessment algorithm using limited 2D TTE videos, and 2) automating conventional AS evaluation.

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