30,763 results match your criteria: "University of Ulsan.[Affiliation]"

Article Synopsis
  • Recent studies highlight the advantages of using intravascular imaging (IVI) for percutaneous coronary intervention (PCI) compared to traditional angiography, but the relevance of angiography-based physiological assessments during this procedure is not fully understood.
  • The FLAVOUR trial analyzed the impact of angiography-based physiological evaluations, specifically the quantitative flow ratio (μQFR), on treatment decisions for patients undergoing IVI-guided PCI.
  • Results indicated significant reclassification of treatment approaches based on μQFR, with the REFERENCE group experiencing a higher risk of major adverse cardiovascular events, while DEFER and PERFORM groups showed similar outcomes and quality of life after 2 years.*
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Introduction: Patients with cancer experience physical, mental, and social pain that affects themselves and their families. The increasing cancer incidence and advances in treatment have increased the number of cancer survivors in Korea, and there is an influx of patients in Seoul and other metropolitan areas, leading to shortages of continuous care and comprehensive life support facilities. Patients must travel long distances for treatment, which poses logistical and quality-of-life challenges.

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Background: In the phase 3 JAVELIN Renal 101 trial (NCT02684006), first-line treatment with avelumab + axitinib resulted in significantly longer progression-free survival (PFS) and a higher objective response rate (ORR) vs sunitinib in patients with advanced renal cell carcinoma (aRCC). We report the final analysis, including the primary analysis of overall survival (OS).

Patients And Methods: Patients with untreated aRCC (any prognostic risk score) were enrolled.

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Reduction of postoperative pain and opioid consumption by VVZ-149, first-in-class analgesic molecule: A confirmatory phase 3 trial of laparoscopic colectomy.

J Clin Anesth

February 2025

Department of Anesthesiology and Pain Medicine, Seoul National University, College of Medicine, Seoul National University Hospital, Seoul, Republic of Korea. Electronic address:

Study Objective: VVZ-149 is a small molecule that inhibits the glycine transporter type 2 and the serotonin receptor 5-hydroxytryptamine 2 A. In this Phase 3 study, we investigated the efficacy and safety of VVZ-149 as a single-use injectable analgesic for treating moderate to severe postoperative pain after laparoscopic colectomy.

Design: Randomized, parallel group, double-blind, Phase 3 clinical trial (Trial no.

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Child Neurology: Neurophysiologic and Anatomical Correlates in Startle Epilepsy: A Comprehensive SEEG Investigation for Successful Resective Surgery.

Neurology

January 2025

From the Department of Neurological Surgery (J.K., S.H.H.), Asan Medical Center; and Department of Pediatrics (M.-J.K., M.-S.Y., T.-S.K.), Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, South Korea.

Startle epilepsy, characterized by startle-provoked epileptic seizures, was historically recognized as one of the reflex epilepsies but currently lacks classification as a specific epileptic syndrome because of insufficient characterization. This study presents an institutional experience and review of relevant literature focusing on the neurophysiologic and anatomical aspects of startle epilepsy. We describe a pediatric patient with an underlying structural etiology of left frontal encephalomalacia who continued to experience disabling seizures despite multiple antiseizure medications and previous palliative surgery.

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Prognostic performance of the N category in the 9th edition of lung cancer staging.

Eur Radiol

December 2024

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

Article Synopsis
  • The study compares the prognostic performance of the N category in lung cancer staging across the 7th, 8th, and 9th editions to see which provides the best hazard stratification.
  • A total of 3864 patients were analyzed, revealing that the 9th edition demonstrated better discrimination capabilities in pathologic staging compared to the 7th edition and comparable performance to the 8th edition's proposal.
  • The revised N category in the 9th edition is deemed a reasonable update, as it enhances prognostic discrimination while maintaining consistency with earlier editions in clinical staging evaluations.
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Aims: This study evaluated the efficacy and safety of a combination of phentermine and delayed-release topiramate (PHEN/TPM CR) versus placebo as an adjunct to standard lifestyle recommendations in Korean adults.

Materials And Methods: This 56-week, randomized, double-blind, placebo-controlled, phase 4 trial enrolled adults (age 19-70 years) with obesity (BMI ≥ 25 kg/m) at eight sites in South Korea. After a 12-week lifestyle programme, participants were randomly assigned in a 1:1 ratio to receive PHEN/TPM CR or placebo.

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Background: This study aimed to evaluate the influence of physical performance level on patient-reported outcomes after surgery for distal radius fractures (DRF).

Methods: We retrospectively reviewed 157 women with DRF who underwent surgery and completed the short physical performance battery (SPPB) within one month of trauma between January 2019 and August 2022. Patient-reported outcomes were assessed one year postoperatively using the disabilities of the arm, shoulder, and hand (DASH) and patient-rated wrist evaluation (PRWE) questionnaires.

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Purpose: This study aimed to investigate the dynamic changes in the microbiome of patients with locally advanced rectal cancer (LARC) undergoing neoadjuvant chemoradiotherapy (nCRT), focusing on the relationship between the microbiome and response to nCRT.

Materials And Methods: We conducted a longitudinal study involving 103 samples from 26 patients with LARC. Samples were collected from both the tumor and normal rectal tissues before and after nCRT.

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Purpose: The role of neoadjuvant chemotherapy in locally advanced sinonasal squamous cell carcinoma (SNSCC) has not been established prospectively. We conducted a phase II trial of neoadjuvant chemotherapy (NAC) with docetaxel/cisplatin/5-fluorouracil (TPF) in this population.

Materials And Methods: Eligible patients had unresectable, locally advanced SNSCC, defined as T3/4 stage or potential compromise of critical organ function on surgery.

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The Rh blood type has 57 antigens, including D, C, E, c, and e. This blood type is clinically significant, alongside the ABO blood type. The anti-f(ce) antibody is an unexpected antibody that targets an antigen composed of the c and e antigens.

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The textures of sarcoidosis: quantifying lung disease through variograms.

Phys Med Biol

January 2025

Dept of Biostatistics and Informatics, Uni. of Colorado Anschutz Medical Campus, Aurora, CO, United States of America.

. Sarcoidosis is a granulomatous disease affecting the lungs in over 90% of patients. Qualitative assessment of chest CT by radiologists is standard clinical practice and reliable quantification of disease from CT would support ongoing efforts to identify sarcoidosis phenotypes.

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This randomized phase III trial aimed to determine whether treatment with cisplatin and volume-directed radiation followed by carboplatin and paclitaxel for four cycles (chemoradiotherapy [C-RT]) increased recurrence-free survival (RFS) and overall survival (OS) when compared with carboplatin and paclitaxel for six cycles (chemotherapy [CT]) in locally advanced endometrial cancer (UC). Previously reported results showed that C-RT did not improve RFS compared with CT. Here we report the final OS analysis.

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Targeting ERBB3 and AKT to overcome adaptive resistance in EML4-ALK-driven non-small cell lung cancer.

Cell Death Dis

December 2024

Astbury Centre for Structural Molecular Biology and School of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds, LS2 9JT, UK.

The fusion event between EML4 and ALK drives a significant oncogenic activity in 5% of non-small cell lung cancer (NSCLC). Even though potent ALK-tyrosine kinase inhibitors (ALK-TKIs) are successfully used for the treatment of EML4-ALK-positive NSCLC patients, a subset of those patients eventually acquire resistance during their therapy. Here, we investigate the kinase responses in EML4-ALK V1 and V3-harbouring NSCLC cancer cells after acute inhibition with ALK TKI, lorlatinib (LOR).

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Background: The shift in medical care toward prediction and prevention has led to the emergence of digital health care as a valuable tool for managing health issues. Aiding long-term follow-up care for cancer survivors and contributing to improved survival rates. However, potential barriers to mobile health usage, including age-related disparities and challenges in user retention for commercial health apps, highlight the need to assess the impact of patients' abilities and health status on the adoption of these interventions.

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Objectives: The relationship between obstructive sleep apnea (OSA) and hearing loss (HL) remains uncertain. This study aimed to investigate the relationship between OSA and HL, and to identify which factors play a key role.

Methods: A retrospective review was conducted of 90 subjects diagnosed with OSA.

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Prcis: The lamina cribrosa microvasculature reduction was associated with the posterior deformation of lamina cribrosa, as well as the functional deterioration, in all spectrums of open-angle glaucoma.

Purpose: To investigate the factors associated with the lamina cribrosa vessel density (LCVD) determined via swept-source optical coherence tomography angiography (SS-OCTA).

Materials And Methods: The optic nerve head (ONH) scan was obtained using SS-OCTA (PLEX Elite 9000; Carl Zeiss Meditec, Inc.

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Nonmass Lesions on Breast Ultrasound: Interreader Agreement and Associations With Malignancy.

AJR Am J Roentgenol

December 2024

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

Nonmass lesions (NMLs) on breast ultrasound lack clear definition and encompass a broad range of benign and malignant entities. Given anticipated inclusion of NMLs in the BI-RADS 6th edition, thorough understanding of these lesions will be critical for optimal management. To evaluate interreader agreement for classification of lesions on breast ultrasound as NMLs and to identify imaging features associated with malignancy in these lesions.

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Background And Aims: This study aims to develop and validate a machine learning (ML) model predicting hepatocellular carcinoma (HCC) in chronic hepatitis B (CHB) patients after the first 5 years of entecavir (ETV) or tenofovir (TFV) therapy.

Methods: CHB patients treated with ETV/TFV for > 5 years and not diagnosed with HCC during the first 5 years of therapy were selected from two hospitals. We used 36 variables, including baseline characteristics (age, sex, cirrhosis, and type of antiviral agent) and laboratory values (at baseline, at 5 years, and changes between 5 years) for model development.

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Background: Percutaneous coronary intervention (PCI) using drug-eluting stents is an established strategy for the treatment of significant obstructive coronary artery disease. Evidence supports that intravascular imaging-guided PCI offers advantages over conventional angiography-guided PCI, though its use is limited, likely due to high costs. Angiography-guided PCI relies on visual estimation, leading to inter- and intra-observer variability and suboptimal outcomes.

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Background: Usenamine A (UA) is a natural compound isolated from the lichen , and its therapeutic effects on rheumatic diseases are not well understood. This study aimed to evaluate the potential anti-inflammatory effects of UA and its therapeutic effects on rheumatoid arthritis (RA) and ankylosing spondylitis (AS).

Materials And Methods: Molecular docking was performed between the 3D structure of UA and the TNF-TNFR2 complex.

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Stents are increasingly used for coiling difficult aneurysms, to reduce the risk of recurrences, or to modify blood flow. Currently, available bifurcation aneurysm models are ill-suited to assess stent performance before clinical use. We designed a new animal model of wide-neck canine Y-type bifurcation aneurysm (such as middle cerebral artery (MCA) bifurcation) and previously reported one of T-type (such as basilar bifurcation).

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Evaluation of Aortic Diseases Using Four-Dimensional Flow Magnetic Resonance Imaging.

Vasc Specialist Int

December 2024

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

The complex hemodynamic environment within the aortic lumen plays a crucial role in the progression of aortic diseases such as aneurysms and dissections. Traditional imaging modalities often fail to provide comprehensive flow dynamics that are essential for precise risk assessment and timely intervention. The advent of time-resolved, three-dimensional (3D) phase-contrast magnetic resonance imaging (4D flow MRI) has revolutionized the evaluation of aortic diseases by allowing a detailed visualizations of flow patterns and quantification of hemodynamic parameters.

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Clin Gastroenterol Hepatol

December 2024

Department of Gastroenterology, Liver Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.

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Introduction: With the global aging, the number of elderly candidates for esophageal resection is increasing. However, studies on esophagectomy in elderly patients have yielded conflicting results, and individuals over 75 years old are frequently excluded from studies on esophageal cancer. This study aimed to analyze perioperative and survival outcomes post-esophagectomy in elderly patients using propensity score matching (PSM).

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