4,629 results match your criteria: "Department of Clinical Epidemiology and Biostatistics[Affiliation]"

Parkinson's disease (PD) is a chronic and progressive neurodegenerative disease with the major symptoms comprising loss of movement coordination (motor dysfunction) and non-motor dysfunction, including gastrointestinal symptoms. Alterations in the gut microbiota composition have been reported in PD patients vs. controls.

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Surgical Outcomes in Non-Small Cell Lung Cancer with Distant Metastasis: The Prognostic Significance of Delayed Metastasis Diagnosis.

Ann Surg Oncol

May 2024

Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.

Background: The diagnosis of distant metastasis on preoperative examinations for non-small cell lung cancer (NSCLC) can be challenging, leading to surgery for some patients with uncertain metastasis. This study evaluated the prognostic impact of delayed diagnosis of metastasis on patients who underwent upfront surgery.

Methods: The study enrolled patients who underwent lobectomy or pneumonectomy for NSCLC between June 2010 and December 2017 and evaluated the presence of distant metastasis before surgery.

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Background: Posterior spinal fusion (PSF), commonly used for adolescent idiopathic scoliosis (AIS), causes severe postoperative pain. Intravenous (IV) administration of acetaminophen has shown promise for opioid-sparing analgesia; however, its analgesic effect and optimal timing for its standard use remain unclear. Our study aimed to evaluate the analgesic effect and optimal timing of IV acetaminophen administration in pediatric and adolescent patients undergoing PSF and requiring adequate pain control.

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Effective remimazolam loading dose for adequate sedation in regional anesthesia.

Can J Anaesth

June 2024

Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, Republic of Korea.

Purpose: Remimazolam is a novel ultrashort-acting sedative considered appropriate for continuous infusion during surgical procedures. Nevertheless, information regarding its loading dose for sedation during surgery is limited. We aimed to determine the 90% effective dose (ED) of the remimazolam loading dose for sedation in patients undergoing limb surgery under regional anesthesia.

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A nomogram for predicting food allergy in infants with feeding problems and malnutrition.

J Pediatr Gastroenterol Nutr

May 2024

Department of Developmental and Behavioral Pediatrics, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.

Article Synopsis
  • - The study developed a nomogram to predict food allergies in infants with feeding issues and malnutrition, as routine oral food challenges aren't feasible in outpatient settings.
  • - Conducted in Shanghai from August 2018 to December 2021, the research involved 289 infants, 86.2% of whom were found to have food allergies based on skin prick tests or oral food challenges.
  • - Key factors for predicting food allergies included feeding patterns, family history of allergies, and specific blood test results, with the nomogram showing strong predictive capability (area under the curve of 0.868).
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Introduction: Frailty is associated with adverse outcomes among patients attending emergency departments (EDs). While multiple frailty screens are available, little is known about which variables are important to incorporate and how best to facilitate accurate, yet prompt ED screening. To understand the core requirements of frailty screening in ED, we conducted an international, modified, electronic two-round Delphi consensus study.

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Background: Immune checkpoint inhibitors (ICIs) are one of the main pillars of cancer therapy. Since other studies such as clinical trial and retrospective study have limitations for detecting the immune-related adverse events (irAEs) characterized by unpredictable onset, nonspecific symptoms and wide clinical spectrum, we aimed to identify the incidence of irAEs and to detect and evaluate the signals using real-world data.

Methods: Cancer patients treated with anticancer medications were analyzed using the nationwide health insurance claims database of South Korea from 2017 to 2019, and Clinical Data Warehouse (CDW) database of Asan Medical Center (AMC), a tertiary referral hospital, from 2012 to 2019.

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CT-guided percutaneous transthoracic needle biopsy for anterior mediastinal lymphoma: the role of PET/CT.

Acta Radiol

May 2024

Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea.

Background: Computed tomography (CT)-guided percutaneous transthoracic needle biopsy (PTNB) is not recommended as the diagnostic modality of choice for anterior mediastinal lymphoma, despite its advantages of minimal invasiveness and easy accessibility.

Purpose: To identify the modifiable risk factors for non-diagnostic results from CT-guided PTNB for anterior mediastinal lymphoma.

Material And Methods: This retrospective study identified CT-guided PTNB for anterior mediastinal lesions diagnosed as lymphoma between May 2007 and December 2021.

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Single-cell transcriptomic analysis reveals the landscape of epithelial-mesenchymal transition molecular heterogeneity in esophageal squamous cell carcinoma.

Cancer Lett

April 2024

Department of Radiation Oncology and Shandong Provincial Key Laboratory of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, 250117, China. Electronic address:

Article Synopsis
  • Researchers studied esophageal squamous cell carcinoma (ESCC), a serious form of cancer, to understand how certain cells change and make the disease worse.
  • They looked at lots of single cancer cells and found different types that affect how the cancer grows, particularly focusing on a process called epithelial-mesenchymal transition (EMT).
  • They discovered specific molecules related to EMT and identified potential drugs that could help treat or prevent this cancer, which may help people with ESCC live longer.
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Objectives: To compare the efficacy of transarterial chemoembolization (TACE) and radiofrequency ablation (RFA) for patients with single small (≤ 3 cm) hepatocellular carcinoma (HCC) and preserved liver function (Child-Pugh class A).

Materials And Methods: The clinical features of treatment-naïve patients who underwent TACE and RFA as first-line treatment were balanced through propensity score matching (PSM). The primary endpoint was overall survival (OS), and the secondary endpoints were local tumor recurrence (LTR) and recurrence-free survival (RFS).

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Re-estimation of the burden of serious fungal diseases in Uganda.

Ther Adv Infect Dis

February 2024

Manchester Fungal Infection Group, CTF Building, The University of Manchester, Grafton Street, Manchester M13 9NT, UK.

Background: It is of utmost importance to monitor any change in the epidemiology of fungal diseases that may arise from a change in the number of the at-risk population or the availability of local data.

Objective: We sought to update the 2015 publication on the incidence and prevalence of serious fungal diseases in Uganda.

Methods: Using the Leading International Fungal Education methodology, we reviewed published data on fungal diseases and drivers of fungal diseases in Uganda.

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Objectives: We aimed to translate and linguistically and cross-culturally validate Sheffield Profile for Assessment and Referral for Care (SPARC) in Spanish for Colombia (SPARC-Sp).

Methods: The linguistic validation of SPARC followed a standard methodology. We conducted focus groups to assess the comprehensibility and feasibility.

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Aim: To perform a bibliometric analysis of the scientific production related to the use of probiotics in oral health.

Materials And Methods: A retrospective, descriptive, observational study with a scientometric approach was conducted. Metadata from scientific articles were retrieved from the Web of Science (WoS) Core Collection and analyzed using Medical Subject Headings (MeSH) and Emtree terms.

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Article Synopsis
  • Hepatic artery thrombosis (HAT) occurs in 2.5%-8% of living-donor liver transplant patients, leading to potential graft loss, and the study focuses on understanding risk factors and reconstruction techniques for grafts with multiple hepatic arteries.
  • The research analyzed 1601 patients who received right lobe grafts, finding that pretransplant hepatectomy, female donor, smaller graft-to-recipient weight ratio, and extra-anatomical reconstruction increased HAT risk, while having two hepatic arteries did not.
  • Survival rates were similar between patients with one and two hepatic arteries, suggesting that reconstructing both arteries when possible might be a beneficial approach in transplant surgeries.
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Preoperative weight loss through a very low-calorie diet (VLCD) has been shown to reduce liver volume and technical difficulty in patients undergoing metabolic and bariatric surgery (MBS). However, the effect of preoperative VLCD on liver histology and other outcomes is not well demonstrated. Our study aimed to explore the effect of a 2-week preoperative VLCD, compared with no-dietary intervention, on hepatic steatosis, fibrosis, weight loss, and other postoperative outcomes of MBS.

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Article Synopsis
  • Gut microbiota may influence blood lipid levels and cardiovascular disease (CVD) risk, with differences observed among various ethnic groups.
  • A study involving 3,860 participants without CVD history showed that specific gut microbes were linked to CVD phenotypes, often varying by ethnicity, using machine learning and Mendelian randomization methods.
  • Key findings include protective microbes like Akkermansia muciniphila associated with ischaemic heart disease in certain ethnicities and a significant inverse relationship between blood lipids and the abundance of a microbial cluster named CMR.
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Continued JAK inhibitor treatment on the risk of recurrent herpes zoster reactivation in patients with immune-mediated inflammatory diseases: A nationwide population-based study in South Korea.

Semin Arthritis Rheum

April 2024

Division of Rheumatology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Republic of Korea. Electronic address:

Background: To investigate the risk of recurrent herpes zoster (HZ) reactivation under continued Janus kinase inhibitor (JAKi) therapy in patients with immune-mediated inflammatory diseases (IMID) who developed HZ reactivation.

Methods: Data from the Korean Health Insurance Review and Assessment Service (HIRA) of patients with rheumatoid arthritis (RA) or ulcerative colitis (UC) gathered from 2007 to 2021 were analyzed.

Results: A total of 3947 (RA 3540, UC 407) receiving JAKi were included.

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Purpose: We aimed to evaluate the effect of visit-to-visit variability in blood pressure (BP) on the risk of open-angle glaucoma (OAG) in individuals without systemic hypertension using a population-based retrospective cohort study design.

Methods: The Korean National Health Insurance Service-National Health Screening Cohort database, which collected data of 209,226 individuals between 2002 and 2015, was used to analyze the data of 140,910 eligible participants. The mean follow-up duration was 8.

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Article Synopsis
  • * Involving 42,132 participants aged 65 and older, the study found that higher anticholinergic burden and chronic polypharmacy led to increased odds of functional decline and higher mortality rates.
  • * The results indicated that anticholinergic burden is a stronger predictor of functional decline than chronic polypharmacy, highlighting the need to monitor medication use in elderly populations to reduce mortality risk.
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Immunogenicity and safety of concomitant bivalent COVID-19 and quadrivalent influenza vaccination: implications of immune imprinting and interference.

Clin Microbiol Infect

May 2024

Division of Infectious Disease, Department of Internal Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea. Electronic address:

Article Synopsis
  • * Methods: A clinical trial was conducted with 154 healthy adults who received either both vaccines at the same time or separately, with follow-ups for adverse events and immune response assessments over six months.
  • * Results: While the combined vaccine group showed slightly lower overall antibody response rates for some coronavirus strains compared to the separate vaccine group, it produced a stronger neutralizing antibody response against the Omicron variant, with mostly mild side effects reported in both groups.
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The intradermal route has emerged as a dose-sparing alternative during the coronavirus disease 2019 (COVID-19) pandemic. Despite its efficacy in healthy populations, its immunogenicity has not been tested in immune-mediated dermatologic disease (IMDD) patients. This assessor-blinded, randomized-controlled, non-inferiority trial recruited patients with two representative IMDDs (i.

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Article Synopsis
  • The CRUSADE score is used to assess in-hospital bleeding risks for patients with NSTEMI going through PCI, particularly in Asian populations like those in Thailand.
  • A study was conducted using data from the Thai PCI registry to validate and simplify the CRUSADE score, concluding that both the original and a revised version accurately predicted major bleeding outcomes.
  • The final simplified version of the CRUSADE score, which only incorporates four key factors, also demonstrated strong predictive ability, indicating its effectiveness in the Thai NSTEMI patient population.
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Background: Postoperative complications have an influence on postoperative rehabilitation, length of hospital stay and hospitalization expenses in elderly patients, especially those with higher Clavien-Dindo (C-D) classification. Patients with cancers often experience more serious postoperative complications after surgery. Different anesthesia methods can affect the postoperative outcomes of cancer patients.

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Background: The prevalence of hemophilia varies globally, with close to 100% of patients diagnosed in high-income countries and as low as 12% diagnosed in lower-income countries. These inequalities in the care of people with hemophilia exist across various care indicators.

Objectives: This analysis aims to describe the clinical care outcomes of patients in the World Bleeding Disorders Registry (WBDR).

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