Publications by authors named "Soyun Kim"

Chronic obstructive pulmonary disease (COPD) is a progressive lung disease commonly associated with multiple comorbidities, significantly affecting prognosis and clinical management. Systemic inflammation and shared risk factors contribute to the development of these comorbidities. Additionally, Preserved Ratio Impaired Spirometry (PRISm) has been recognized as a high-risk condition for COPD progression; however, its comorbid burden remains insufficiently studied.

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Background: Lung cancer remains the leading cause of cancer-related mortality worldwide. To improve lung cancer care quality, the Health Insurance Review and Assessment Service (HIRA) in Korea conducted the first phase of the second-cycle adequacy assessment, incorporating patient-centered and outcome-based indicators.

Methods: This study analyzed HIRA claims data from 106 medical institutions treating lung cancer between July 2022 and June 2023.

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Background: Amyloid beta (Aβ) plaque burden, as measured by positron emission tomography (PET), is increasingly being used as a biomarker for Alzheimer's disease (AD) as well as a screening or monitoring tool for clinical trials with amyloid-lowering drugs. However, PET imaging is expensive, invasive and not widely available for all patients, necessitating alternative means to assess brain Aβ accumulation.

Objectives: In this study, we measured levels of Aβ42, Aβ40 and Aβ38 in saliva samples from cognitively unimpaired older adults (n=93; 61.

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Study Objectives: Memory consolidation during non-rapid eye movement slow wave sleep (NREM SWS) involves reactivation of a hippocampal index which integrates distributed cortical representations of an experience. This study examined whether individual differences in brain network properties that align with this theoretical organization were associated with interindividual variability in memory consolidation during sleep.

Methods: Thirty-six older adults (μage=72.

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Approximately half of the patients with sepsis require intensive care unit (ICU) management and their mortality rate remains high. The concept of withholding and withdrawal life-sustaining treatment (WWLST) issue was introduced to limit the suffering of critically ill patients. However, little is known about the characteristics and outcomes of WWLST in patients with sepsis.

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Background: Metachronous lung cancers with distinct driver mutations are rare, particularly following targeted therapy. This report presents a unique case of tumor evolution in non-small cell lung cancer (NSCLC).

Case Description: A 73-year-old East Asian woman was diagnosed with stage IV anaplastic lymphoma kinase (ALK)-rearranged lung adenocarcinoma in the right middle lobe (RML).

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Objective: Healthcare professionals must possess statistical literacy to provide evidence-based care and engage patients in decision-making. However, there have been concerns about healthcare professionals' inadequate understanding of health statistics. As an initial step in addressing the issue, we assessed the statistical literacy of medical students and doctors in South Korea by evaluating their comprehension of four statistical concepts: (a) single-event probability, (b) relative risk reduction, (c) positive predictive value and (d) 5-year survival rate.

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Cerebral amyloid-beta (Aβ) accumulation, a hallmark pathology of Alzheimer's disease (AD), precedes clinical impairment by two to three decades. However, it is unclear whether Aβ contributes to subtle memory deficits observed during the preclinical stage. The heterogeneous emergence of Aβ deposition may selectively impact certain memory domains, which rely on distinct underlying neural circuits.

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Background: Behçet's disease (BD) is a multisystem inflammatory disorder that can affect various organs, including the lungs. Pulmonary manifestations are rare and typically present as pulmonary artery aneurysms.

Case Presentation: We report the case of a 56-year-old East Asian male with a 27-year history of BD, who had no respiratory symptoms, such as hemoptysis, cough, or fever.

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Article Synopsis
  • - Sepsis poses significant risks to elderly patients (aged ≥ 80) due to their complex health issues, prompting a study to evaluate how underlying conditions and adherence to sepsis treatment protocols affect their outcomes.
  • - The study analyzed data from nearly 12,000 patients, revealing that older survivors had better compliance with sepsis treatment bundles, including early fluid therapy and appropriate antibiotic use, compared to those who did not survive.
  • - Findings emphasize the need for personalized treatment strategies and heightened awareness of the specific issues faced by older patients, suggesting that future research should focus on improving sepsis care interventions for this demographic.
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  • Critically ill patients often lose muscle mass, which negatively impacts their recovery; this study aimed to assess how rehabilitation affects muscle mass in these patients.
  • The study included 53 ICU patients, splitting them into rehabilitation (15 patients) and no rehabilitation groups (38 patients), measuring muscle mass with ultrasound and bioelectrical impedance analysis.
  • After 14 days, the rehabilitation group showed improved muscle measurements and reduced muscle loss compared to the no rehabilitation group, suggesting rehabilitation may aid recovery, though survival rate differences were not statistically significant.
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Background: Medical students and professionals often struggle to understand medical test results, which can lead to poor medical decisions. Natural frequency tree-based training (NF-TT) has been suggested to help people correctly estimate the predictive value of medical tests. We aimed to compare the effectiveness of NF-TT with conventional conditional probability formula-based training (CP-FT) and investigate student variables that may influence NF-TT's effectiveness.

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  • Tongue necrosis is a rare condition often linked to issues like vasculitis or septic shock, which can lead to serious damage and calcification.
  • A case study details a 70-year-old man who experienced bilateral tongue necrosis after septic shock, with symptoms including discoloration and swelling, but without leg ischemia.
  • Successful treatment involved cleaning the affected area, highlighting the importance of regular tongue inspection during ICU care to catch complications early and reduce long-term damage.
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  • The study compares the effectiveness of natural frequencies (NF) and conditional probabilities (CP) formats in aiding Bayesian inference among South Korean adults.
  • Results showed that the NF format generally led to better performance in estimating Bayesian problems, except for one specific test.
  • Higher numeracy levels were found to correlate with improved performance in Bayesian tasks, and participants employed diverse non-Bayesian strategies depending on the problem format and nature.
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Article Synopsis
  • This study investigates the levels of soluble programmed death-ligand 1 (sPD-L1) in the bronchoalveolar lavage fluid (BALF) of patients with stage IV non-small cell lung cancer (NSCLC) to determine its prognostic and predictive significance.
  • Researchers found a weak correlation between PD-L1 expression in tumors and sPD-L1 levels in BALF; patients with low sPD-L1 had significantly longer median overall survival (16.47 months) compared to those with high sPD-L1 (8.87 months).
  • The findings suggest that sPD-L1 in BALF not only predicts how long patients might survive but also indicates how well they might
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Cerebral amyloid-beta (Aβ) accumulation, a hallmark pathology of Alzheimer's disease (AD), precedes clinical impairment by two to three decades. However, it is unclear whether Aβ contributes to subtle memory deficits observed during the preclinical stage. The heterogenous emergence of Aβ deposition may selectively impact certain memory domains, which rely on distinct underlying neural circuits.

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The amyloid beta (Aβ) 42/40 ratio has been widely studied as a biomarker in Alzheimer's disease (AD); however, other Aβ peptides could also represent relevant biomarkers. We measured levels of Aβ38/40/42 in plasma samples from cognitively-unimpaired older adults and determined the relationships between Aβ levels and amyloid positron-emission-tomography (PET) and performance on a learning and memory task. We found that all Aβ peptides individually and the Aβ42/40 ratio, but not the Aβ42/38 ratio, were significantly correlated with brain amyloid (Aβ-PET).

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Backgruound: Poorly differentiated thyroid carcinoma (PDTC) accounts for a small portion of thyroid carcinomas but contributes to a significant proportion of thyroid carcinoma-associated deaths. The clinicopathological prognostic factors and clinical outcomes of PDTC remain unclear. We aimed to evaluate the clinical outcomes of patients with PDTC after curative treatment.

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Tramadol, a weak μ-opioid receptor agonist, has been used worldwide for pain management. It is considered to have a favorable safety profile without serious adverse events; however, safety issues of respiratory depression were proposed by regulatory governments. We aimed to examine the risk and contributing factors associated with tramadol-related respiratory depression using a real-world database, VigiBase.

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The consequences of coronavirus disease 2019 (COVID-19) are particularly severe in older adults with a disproportionate number of severe and fatal outcomes. Therefore, this integrative review aimed to provide a comprehensive overview of the clinical characteristics, management approaches, and prognosis of older patients diagnosed with COVID-19. Common clinical presentations in older patients include fever, cough, and dyspnea.

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Cancer-associated dermatomyositis (CAD), a paraneoplastic syndrome characterized by dermatomyositis (DM), frequently presents in association with small cell lung cancer (SCLC). Although the advent of immune checkpoint inhibitors (ICIs) has revolutionized cancer treatment, their efficacy and safety in patients with concurrent autoimmune diseases (AD) and malignancies remains uncertain. Several studies have suggested the safe administration of ICIs in patients with AD, indicating that successful cancer therapy can alleviate CAD symptoms.

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Background: Mortality is critical information in evaluating the benefits of cancer screening. However, 5-y survival rates and incidence, without mortality, have been frequently communicated to the public. Based on the literature that people's perceptions and judgments can be altered by the way of presenting health statistics, the current study examined whether mortality alongside 5-y survival and incidence would influence laypeople's perceptions of the effectiveness of cancer screening and screening intention.

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Memory consolidation occurs via reactivation of a hippocampal index during non-rapid eye movement slow-wave sleep (NREM SWS) which binds attributes of an experience existing within cortical modules. For memories containing emotional content, hippocampal-amygdala dynamics facilitate consolidation over a sleep bout. This study tested if modularity and centrality-graph theoretical measures that index the level of segregation/integration in a system and the relative import of its nodes-map onto central tenets of memory consolidation theory and sleep-related processing.

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Alzheimer's disease (AD) is the most common type of dementia, characterized by early memory impairments and gradual worsening of daily functions. AD-related pathology, such as amyloid-beta (Aβ) plaques, begins to accumulate many years before the onset of clinical symptoms. Predicting risk for AD via related pathology is critical as the preclinical stage could serve as a therapeutic time window, allowing for early management of the disease and reducing health and economic costs.

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Introduction: Diffusion tensor imaging has been used to assess white matter (WM) changes in the early stages of Alzheimer's disease (AD). However, the tensor model is necessarily limited by its assumptions. Neurite Orientation Dispersion and Density Imaging (NODDI) can offer insights into microstructural features of WM change.

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