Hung Youl Seok

ORCID: 0000-0002-9938-5355
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About
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Research Areas
  • Peripheral Neuropathies and Disorders
  • Myasthenia Gravis and Thymoma
  • Multiple Sclerosis Research Studies
  • Orthopedic Surgery and Rehabilitation
  • Parkinson's Disease Mechanisms and Treatments
  • Parkinson's Disease and Spinal Disorders
  • Peripheral Nerve Disorders
  • Hereditary Neurological Disorders
  • Amyotrophic Lateral Sclerosis Research
  • Systemic Lupus Erythematosus Research
  • Nerve Injury and Rehabilitation
  • Genetic Neurodegenerative Diseases
  • Antifungal resistance and susceptibility
  • Inflammatory Myopathies and Dermatomyositis
  • Ophthalmology and Eye Disorders
  • Long-Term Effects of COVID-19
  • Restless Legs Syndrome Research
  • Neurological disorders and treatments
  • Facial Nerve Paralysis Treatment and Research
  • Autoimmune Neurological Disorders and Treatments
  • SARS-CoV-2 and COVID-19 Research
  • Viral Infections and Immunology Research
  • Neurological and metabolic disorders
  • Neuroinflammation and Neurodegeneration Mechanisms
  • Cerebrospinal fluid and hydrocephalus

Keimyung University
2017-2025

Kyungpook National University Hospital
2024-2025

Korea University
2008-2023

Kyungpook National University
2022-2023

Keimyung University Dongsan Medical Center
2019-2023

Dongguk University Ilsan Hospital
2023

Korea University Medical Center
2010-2018

Armed Forces Capital Hospital
2012

Cross-sectional area (CSA) reference values of lower extremity nerves using ultrasonography have only been reported in a few studies and limited to white populations.For this study, 94 healthy Korean volunteers were recruited for measurement the CSA at 7 sites nerves. The side-to-side difference was calculated each nerve, ranges derived. External validity evaluation performed with 10 newly different institution.Nerve correlated significantly body mass index, weight, height; however, absolute...

10.1002/mus.24209 article EN Muscle & Nerve 2014-02-12

This study evaluated the diagnostic utility of an anti-signal-recognition particle 54 (anti-SRP54) antibody-based enzyme-linked immunosorbent assay (ELISA) as well clinical, serological, and pathological characteristics patients with SRP immune-mediated necrotizing myopathy (IMNM). We 87 idiopathic inflammatory 107 healthy participants between January 2002 December 2023. The sensitivity specificity ELISA for anti-SRP54 antibodies were assessed, clinical profiles determined. had a 88% 99%,...

10.3988/jcn.2024.0333 article EN cc-by-nc Journal of Clinical Neurology 2025-01-01

Treatments for neuromyelitis optica spectrum disorder (NMOSD) such as eculizumab, ravulizumab, satralizumab, and inebilizumab have significantly advanced relapse prevention, but they remain expensive. Rituximab is an off-label yet popular alternative that offers a cost-effective solution, its real-world efficacy needs better quantification guiding the application of newer approved NMOSD treatments (ANTs). This study aimed to determine rituximab failure rates anticipate demand ANTs aid in...

10.3988/jcn.2024.0485 article EN cc-by-nc Journal of Clinical Neurology 2025-01-01

Abstract Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease. However, no reliable biomarkers have been identified to represent the clinical status. This study aimed investigate whether diffusion tensor imaging (DTI) findings are useful indicate status of ALS patients. Ninety-six probable or definite cases and 47 age- sex-matched, normal controls were enrolled. Demographic data collected at time DTI. DTI acquired using 3-Tesla magnetic resonance scanner analysed by voxel-wise...

10.1038/s41598-020-62049-0 article EN cc-by Scientific Reports 2020-03-23

Background and Purpose Upper respiratory infection (URI), including influenza, may exacerbate the symptoms of myasthenia gravis (MG), which is an autoimmune disease that causes muscle weakness.There also concern influenza vaccine trigger or worsen diseases.The objective this study was to determine impacts vaccination on symptom severity in MG patients.Methods Patients diagnosed with were enrolled from 10 university-affiliated hospitals between March August 2015.Subjects completed a...

10.3988/jcn.2017.13.4.325 article EN cc-by-nc Journal of Clinical Neurology 2017-01-01

The pathogenesis of fibromyalgia (FM) has not been clearly elucidated, but central sensitization, which plays an important role in the development neuropathic pain, is considered to be main mechanism. cutaneous silent period (CSP), a spinal reflex mediated by A-delta afferents, useful for evaluation sensorimotor integration at and supraspinal levels. To understand pathophysiology FM, we compared CSP patterns between patients with FM normal healthy subjects. Twenty-four diagnosed accordance...

10.1371/journal.pone.0149248 article EN cc-by PLoS ONE 2016-02-12

Objective The objective of this study was to investigate the usefulness muscle ultrasound in evaluating dissociated small hand atrophy, termed ‘split hand’, and its feasibility diagnosis amyotrophic lateral sclerosis (ALS). Methods Forty-four patients with ALS, 18 normal subjects 9 other neuromuscular disorders were included study. muscles divided into three regions, median-innervated group (ML), ulnar-innervated (UL) medial (UM), echo intensity (EI) compound action potential (CMAP)...

10.1136/jnnp-2017-317917 article EN Journal of Neurology Neurosurgery & Psychiatry 2018-04-17

The ongoing global administration of vaccines for coronavirus disease 2019 (COVID-19) means that increasing numbers patients are likely to present with post-vaccination complications. We describe the first reported case neuralgic amyotrophy (NA) involving lumbosacral plexus occurring after AstraZeneca COVID-19 vaccination. patient presented acute-onset leg paralysis following vaccine. Based on clinical, electrodiagnostic, and radiologic findings, was diagnosed NA. speculate vaccine elicited...

10.1177/03000605211056783 article EN cc-by-nc Journal of International Medical Research 2021-11-01

The authors hypothesized that if locomotor drive increases along with rapid eye movement (REM) sleep without atonia in idiopathic REM behavior disorder (RBD), then RBD patients would have greater corticomuscular coherence (CMC) values during than at other stages and healthy control subjects sleep. To explore this hypothesis, we analyzed beta frequency range CMC between sensorimotor cortex EEG chin/limb muscle EMG patients. Eleven drug naive 11 age-matched were included the present study. All...

10.3389/fneur.2012.00060 article EN cc-by Frontiers in Neurology 2012-01-01

Background and Purpose Diabetes mellitus (DM) has been proposed as a risk factor for carpal tunnel syndrome (CTS), but this remains controversial.We investigated the association between DM CTS using both ultrasonography (US) nerve conduction study (NCS) data.Methods We analyzed prospectively recruited database of neuromuscular US medical records subjects who had undergone NCSs electromyography symptoms suggestive CTS.Subjects were assigned to follow groups: Group I, with DM; II, without III,...

10.3988/jcn.2017.13.3.243 article EN cc-by-nc Journal of Clinical Neurology 2017-01-01

We aimed to evaluate the diagnostic accuracy of enzyme-linked immunosorbent assay (ELISA) for anti-muscle specific tyrosine kinase (MuSK) antibody (Ab) in a large cohort anti-acetylcholine receptor (AChR) Ab-negative generalized myasthenia gravis (MG), and also investigate clinical contexts diagnosis MuSK MG.A retrospective study 160 patients with suspicion AChR MG was performed. The serum samples were tested anti-clustered Ab by cell-based (CBA), anti-MuSK ELISA, CBA and/or...

10.1007/s00415-022-11458-4 article EN cc-by Journal of Neurology 2022-11-17
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