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Importance of proper ventilator support and pulmonary rehabilitation in obese patients with heart failure:Two case reports

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World Journal of Clinical Cases 2023年第13期11卷 3029-3037页

作者： Eun-hee Lim sung-hee park Yu Hui Won Physical Medicine and Rehabilitation Jeonbuk National University Medical SchoolJeonju 54907South Korea Department of Physical Medicine and Rehabilitation Jeonbuk National University Medical SchoolJeonju 54907South Korea Research Institute of Clinical Medicine of Jeonbuk National University Biomedical Research Institute of Jeonbuk National University HospitalJeonju 54907South Korea

BACKGROUND The optimal treatment for heart failure(HF)is a combination of appropriate *** the disease using only medical therapy is difficult in patients with HF,severe hypercapnia,and *** patients should first receive ventilator support followed by pulmonary rehabilitation(PR).CASE SUMMARY We report two cases in which arterial blood gas(ABG)improved and PR was possible with appropriate ventilator *** patients with extreme obesity complaining of worsening dyspnea–a 47-year-old woman and a 36-year-old man both diagnosed with HF–were hospitalized because of severe hypercapnia and *** proper medical treatment,hypercapnia and desaturation resolved in neither case,and both patients were transferred to the rehabilitation department for *** the time of the first consultation,the patients were bedridden because of *** demand was successfully reduced once noninvasive ventilation was *** the patients’dyspnea gradually improved to the point where they could be weaned off the ventilator during the daytime,they started engaging in functional training and aerobic *** 4 mo of followup,both patients were able to perform activities of daily living and maintain their lower body weight and normalized ABG *** Symptoms of patients with obesity and HF may improve once ABG levels are normalized through ventilator support and implementation of PR.

关键词： Noninvasive ventilation Heart failure Obesity Rehabilitation Dyspnea Case report

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Respiratory failure after scoliosis correction surgery in patients with Prader-Willi syndrome: Two case reports

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World Journal of Clinical Cases 2021年第32期9卷 9960-9969页

作者： Ju-Yul Yoon sung-hee park Yu Hui Won Department of Physical Medicine and Rehabilitation Jeonbuk National University Medical SchoolJeonju 54907JeonbukSouth Korea Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital Jeonju 54907JeonbukSouth Korea

BACKGROUND Sleep-disordered breathing,including hypoventilation and obstructive sleep apnea,is often observed in Prader-Willi syndrome(PWS).Particularly in adolescence,scoliosis causes a progressive restrictive pulmonary pattern,leading to hypoventilation,so timely corrective surgery is ***,the effect is *** addition,since mental retardation of PWS,patient effort-based respiratory tests may be less *** far,no studies have accurately reported on the comparison of respiratory function before and after corrective surgery,and appropriate respiratory function measurement method in *** SUMMARY We present two cases of adolescent PWS with typical characteristics,including obesity,mental retardation,and *** boys,aged 12 and 13,diagnosed with PWS,both underwent scoliosis correction *** and immediately after surgery,arterial blood tests showed no abnormalities and no respiratory symptoms ***,after 6-7 mo,both patients complained of daytime sleepiness,difficulty sleeping at night,dyspnea on exertion,and showed *** and hypoxia were confirmed by polysomnography and transcutaneous CO2 monitoring during sleep and were diagnosed with obstructive sleep apnea and alveolar *** was corrected by nighttime noninvasive ventilation application and normal findings of arterial blood gas were maintained after 6-8 mo *** Even after scoliosis surgery,“periodic”monitoring of respiratory failure with an“objective”test method is needed for timely respiratory support.

关键词： Prader-Willi syndrome Respiratory failure Noninvasive ventilation Obstructive sleep apnea Scoliosis Case report

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Recovery of brachial plexus injury after bronchopleural fistula closure surgery based on electrodiagnostic study:A case report and review of literature

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World Journal of Clinical Cases 2022年第30期10卷 11090-11100页

作者： Young-In Go Da-Sol Kim Gi-Wook Kim Yu Hui Won sung-hee park Myoung-Hwan Ko Jeong-Hwan Seo Department of Physical Medicine&Rehabilitation Jeonbuk National University Medical SchoolJeonju 54907South Korea Research Institute of Clinical Medicine of Jeonbuk National University Biomedical Research Institute of Jeonbuk National University HospitalJeonju 54907South Korea

BACKGROUND Axillary thoracotomy and muscle flap are muscle-and nerve-sparing methods among the surgical approaches to bronchopleural fistula(BPF).However,in patients who are vulnerable to a nerve compression injury,nerve injury may *** this report,we present a unique case in which the brachial plexus(division level),suprascapular,and long thoracic nerve injury occurred after BPF closure surgery in a patient with ankylosing spondylitis and concomitant multiple joint *** SUMMARY A 52-year-old man with a history of ankylosing spondylitis with shoulder joint contractures presented with right arm weakness and sensory impairment immediately after axillary thoracotomy and latissimus dorsi muscle flap surgery for BPF *** the surgery,the patient was positioned in a lateral decubitus position with the right arm hyper-abducted for approximately 6 *** resonance imaging and ultrasound revealed subclavius muscle injury or myositis with brachial plexus(BP)compression and related *** electrodiagnostic study confirmed the presence of BP injury involving the wholedivision level,long thoracic,and suprascapular nerve *** was treated with medication,physical therapy,and ultrasound-guided *** steroid injection at the BP,hydrodissection with 5%dextrose water at the BP and suprascapular nerve,and intra-articular steroid and hyaluronidase injection at the glenohumeral joint were *** postoperative day 194,the pain and arm weakness were resolved,and a follow-up electrodiagnostic study showed marked *** Clinicians should consider the possibilities of multiple nerve injuries in patients with joint contracture,and treat each specific therapeutic target.

关键词： Brachial plexus Electrodiagnosis Physical therapy Surgical flaps Thoracotomy Case report

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Disruption of sensation-dependent bladder emptying due to bladder overdistension in a complete spinal cord injury:A case report

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World Journal of Clinical Cases 2021年第29期9卷 8946-8952页

作者： Ju-Yul Yoon Da-Sol Kim Gi-Wook Kim Yu Hui Won sung-hee park Myoung-Hwan Ko Jeong-Hwan Seo Department of Physical Medicine and Rehabilitation Jeonbuk National University Medical SchoolJeonju 54097JeonbukSouth Korea Department of Physical Medicine and Rehabilitation Jeonbuk National University Medical SchoolKorea Research Institute of Clinical Medicine of Jeonbuk National University−Biomedical Research Institute of Jeonbuk National University HospitalJeonju 54097JeonbukSouth Korea

BACKGROUNDAutonomic dysreflexia (AD) can be a life-threatening condition in patients withspinal cord injury. It is important to prevent bladder overdistension in thesepatients as it may trigger AD. Sensation-dependent bladder emptying (SDBE), asa method of bladder management, improves the quality of life and allowsphysiologic voiding. In this study, we report disruption of the SDBE habit afterbladder overdistension leading to AD with chest *** SUMMARYA 47-year-old male with a diagnosis of C4 American Spinal Cord InjuryAssociation impairment scale A had been emptying his bladder using the cleanintermittent catheterization method with an itchy sensation in the nose as asensory indication for a full bladder for 23 years, and the usual urine volume wasabout 300-400 mL. At the time of this study, the patient had delayed catheterizationfor approximately five hours. He developed severe abdominal pain andheadache and had to visit the emergency room for bladder overdistension (800mL) and a high systolic blood pressure (205 mmHg). After control of AD, ahypersensitive bladder was observed despite using anticholinergic agents. Thesensation indicating bladder fullness changed from nose itching to pain in theabdomen and precordial area. Moreover, the volume of the painful bladder fillingsensation became highly variable and was noted when the bladder urine volumeexceeded only 100 mL. The patient refused intermittent clean catheterization Finally, a cystostomy was performed, which relieved the *** using physiologic feedback, such as SDBE, for bladder management arerecommended to avoid bladder overdistension.

关键词： Neurogenic bladder Sensation-dependent bladder emptying Spinal cord injury Autonomic dysreflexia Bladder overdistension Bladder management Case report

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Comprehensive molecular characterization to predict immunotherapy response in advanced biliary tract cancer:a phase II trial of pembrolizumab

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Oncology Research 2025年第1期33卷 57-65页

作者： RYUL KIM JOO KYUNG park MINSUK KWON MINAE AN JUNG YONG HONG JOON OH park sung hee LIM SEUNG TAE KIM Division of Hematology-Oncology Department of MedicineSamsung Medical CenterSungkyunkwan University School of MedicineSeoulKorea Division of Gastroenterology Department of MedicineSamsung Medical CenterSungkyunkwan University School of MedicineSeoulKorea Department of Hematology-Oncology Ajou University School of MedicineSuwon-siGyeonggi-doKorea Samsung Advanced Institute of Health Science and Technology Sungkyunkwan University School of MedicineSeoulKorea

Background:Immune checkpoint inhibitors(ICIs)are effective in a subset of patients with metastatic solid ***,the patients who would benefit most from ICIs in biliary tract cancer(BTC)are still *** and methods:We molecularly characterized tissues and blood from 32 patients with metastatic BTC treated with the ICI pembrolizumab as second-line ***:All patients had microsatellite stable(MSS)type *** of the 32 patients achieved partial response(PR),with an objective response rate(ORR)of 9.4%(95%confidence interval[CI],2.0–25.2)and nine showed stable disease(SD),exhibiting a disease control rate(DCR)of 37.5%(95%CI,21.1–56.3).For the 31 patients who had access to PD-1 ligand 1(PD-L1)combined positive score(CPS)testing(cut-off value≥1%),the ORR was not different between those who had PD-L1-positive(PD-L1+;1/11,9.1%)and PDL1-(2/20,10.0%)tumors(p=1.000).The tumor mutational burden(TMB)of PD-L1+BTC was comparable to that of PD-L1-BTC(p=0.630).TMB and any exonic somatic mutations were also not predictive of pembrolizumab *** analysis of blood and tumor samples demonstrated a relatively high natural killer(NK)cell proportion in the peripheral blood before pembrolizumab treatment in patients who achieved tumor ***,the tumors of these patients presented high enrichment scores for NK cells,antitumor cytokines,and Th1 signatures,and a low enrichment score for cancer-associated ***:This study shows the molecular characteristics associated with the efficacy of pembrolizumab in BTC of the MSS type.

关键词： Pembrolizumab Whole-exome sequencing Whole-transcriptome sequencing Biliary tract cancer

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Film-Cooling Performance with Various Hole Length to Diameter Ratios for Cylindrical and Laidback Fan-Shaped Holes with an Inlet Groove

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Journal of Thermal Science 2025年第02期 607-625页

作者： park Jisu KIM Jun-hee KANG Changwoo Department of Mechanical Engineering Jeonbuk National University Research Institute of Industrial Science & Technology 187-12 Geumho-ro Laboratory for Renewable Energy and Sector Coupling Jeonbuk National University

The influence of the hole length-to-diameter ratio on film-cooling performance is numerically investigated for a cylindrical hole and laidback fan-shaped hole with an inlet *** analysis of film-cooling is conducted by solving three-dimensional Reynolds-averaged Navier-Stokes equations(RANS)with a Realizable k-ε turbulence *** and triangular grooves are applied to the inlet of cylindrical and laidback fan-shaped *** ratio of the hole length(L) to the diameter(D),i.e.,L/D,is varied between 6-12 at blowing ratios(M) of 0.5 to 1.5 for the cylindrical hole and 0.5 to 3.0 for the laidback fan-shaped *** cylindrical holes with an inlet groove,the film-cooling effectiveness decreases as the L/D increases,regardless of the blowing ***,in the case of laidback fan-shaped holes,the cooling performance with the length-to-diameter ratios shows different tendencies for each blowing *** low blowing ratios(M=1.0),relatively high effects were observed with more than 5% increases in the effectiveness at L/D=10 and 12 compared to that of L/D=***,the performance is maximized at L/D=8 under high-blowing-ratio conditions(M=3.0).The cooling efficiency is enhanced up to 148% for square grooves and 124% for triangle grooves compared to those of L/D=6.

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Immunoglobulin G4-related spinal pachymeningitis:A case report

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World Journal of Clinical Cases 2024年第32期12卷 6551-6558页

作者： Tae-Seok Chae Da-Sol Kim Gi-Wook Kim Yu Hui Won Myoung-Hwan Ko sung-hee park Jeong-Hwan Seo Department of Physical Medicine&Rehabilitation Jeonbuk National University Medical SchoolJeonju 54907South Korea Department of Physical Medicine&Rehabilitation Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University HospitalJeonju 54907South Korea

BACKGROUND Immunoglobulin G4-related disease(IgG4-RD)is a complex immune-mediated condition that causes fibrotic inflammation in several organs.A significant clinical feature of IgG4-RD is hypertrophic pachymeningitis,which manifests as inflammation of the dura mater in intracranial or spinal *** IgG4-RD can affect multiple areas,the spine is a relatively rare site compared to the more frequent involvement of intracranial *** SUMMARY A 70-year-old male presented to our hospital with a two-day history of fever,altered mental status,and generalized *** initial brain magnetic resonance imaging(MRI)revealed multiple small infarcts across various cerebral *** the second day after admission,a physical examination revealed motor weakness in both lower extremities and diminished sensation in the right lower *** evaluation revealed findings consistent with acute motor sensory *** initial management with intravenous immunoglobulin for presumed Guillain-Barrésyndrome,the patient exhibited progressive worsening of motor *** the 45th day of hospitalization,an enhanced MRI of the entire spine,focusing specifically on the thoracic 9 to lumbar 1 vertebral level,raised the suspicion of IgG4-related spinal ***,the patient was administered oral prednisolone and participated in a comprehensive rehabilitation program that included gait training and lower extremity strengthening *** IgG4-related spinal pachymeningitis,diagnosed on MRI,was treated with corticosteroids and a structured rehabilitation regimen,leading to significant improvement.

关键词： Immunoglobulin G4 related disease Immunoglobulin G4 related spinal pachymeningitis Manual motor test Electromyography Magnetic resonance imaging Case report

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Adenosine triphosphate-binding pocket inhibitor for mixed lineage kinase domain-like protein attenuated alcoholic liver disease via necroptosis-independent pathway

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World Journal of Gastroenterology 2025年第6期31卷 44-61页

作者： Han-Ning Xuan Yuan Hyun sung Kim Gye Ryeol park Jae Eun Ryu Ji Eun Kim In Young Kang Hye Young Kim Seung Min Lee Ju hee Oh Eileen L Yoon Dae Won Jun Department of Internal Medicine Hanyang University School of MedicineSeoul 04763South Korea Department of Pathology Hanyang University School of MedicineSeoul 04763South Korea Department of Translational Medicine Graduate School of Biomedical Science and EngineeringHanyang UniversitySeoul 04763South Korea Department of Obstetrics and Gynecology Institute of Women’s Medical Life ScienceYonsei Cancer CenterSeverance HospitalYonsei University College of MedicineSeoul 04763South Korea Department of Internal Medicine Sanggye Paik HospitalInje University College of MedicineSeoul 01757South Korea

BACKGROUND Mixed lineage kinase domain-like protein(MLKL)serves as a critical mediator in necroptosis,a form of regulated cell death linked to various liver *** study aims to specifically investigate the role of MLKL’s adenosine triphosphate(ATP)-binding pocket in facilitating necroptosis-independent pathways that may contribute to liver disease *** focusing on this mechanism,we seek to identify potential therapeutic targets that can modulate MLKL activity,offering new strategies for the prevention and treatment of liver-related *** To investigate the possibility of using the ATP-binding pocket-associated,necro-ptosis-independent MLKL pathway as a target for liver *** Cell death following necroptosis stimuli was evaluated using cell proliferation assays,flow cytometry,and electron microscopy in various *** human liver organoid system was used to evaluate whether the MLKL ATP pocket-binding inhibitor could attenuate ***,alcoholic and non-alcoholic fatty liver diseases animal models were used to determine whether MLKL ATP pocket inhibitors could attenuate liver *** While an MLKL ATP pocket-binding inhibitor did not prevent necroptosis-induced cell death in RAW 264.7 cells,it did reduce the necroptosis-led expression of CXCL2,ICAM,and ***,MLKL ATP pocket inhibitor diminishes the expression of CXCL2,ICAM,and VCAM by inhibiting the IκB kinase and nuclear factor kappa-B pathways without inducing necroptosis-induced cell death in two-dimensional cell culture as well as the human-derived liver organoid *** MLKL ATP-binding inhibitor was ineffective in non-alcoholic fatty liver disease animal models,MLKL ATP-binding inhibitor attenuated hepatic inflammation in the alcoholic liver disease *** MLKL ATP pocket-binding inhibitor exerted anti-inflammatory effects through the necroptosis-independent MLKL pathway in an animal model of alcoholic liver disease.

关键词： RAW 264.7 cell Cell death Necroptosis Mixed lineage kinase domain-like protein Non-alcoholic fatty liver disease Mixed lineage kinase domain-like protein adenosine triphosphate binding inhibitor Alcoholic liver disease

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Extraction of rare earth elements from neodymium(NdFeB) magnet scrap using magnesium halides

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Journal of Rare Earths 2025年第2期43卷 371-376页

作者： sung Gue Heo Jae Yeol Yang Soong Ju Oh Seok-Jun Seo Mi Hye Lee Kyoung-Tae park Korea Institute for Rare Metals Korea Institute of Industrial Technology Department of Materials Science and Engineering Korea University

The demand for neodymium（NdFeB） permanent magnets for electric vehicles and eco-friendly generators is ***,NdFeB magnets contain rare earth elements（REEs）,which are limited in *** this study,we performed an exchange reaction between magnesium halides（fluoride and chloride） and waste NdFeB scrap and then compared the characteristics of the extracted halides *** compositions of the ternary Mg fluoride（LiF:NaF:MgF2=50:40:10 in mole ratio） and chloride（LiCl:NaCl:MgCl2=10:50:40 in mole ratio） salts were thermodynamically determined for achieving low eutectic *** reactions between the NdFeB scrap powder（1-2 mm） and Mg halide salts were carried out at 1073 and 873 K for the fluoride and chloride systems,respectively,in an argon *** the reaction,we separated Nd halide from the residual salt and evaluated the Ndextraction *** phase formation of the salt was analyzed using X-ray diffraction（XRD）,and the extraction rate of Nd was analyzed using inductively coupled plasma optical emission spectroscopy（ICPOES）.Nd was extracted in the form of Nd halide（NdF3or NdCl3）,and the extraction rates in the fluoride and chloride systems are 98.64% and 84.59%,***,the fluoride system is more effective than the chloride system for Nd *** study provides a comprehensive comparative analysis of the effectiveness of fluo ride and chlo ride systems in extracting REEs from NdFeB magnet *** study findings can be used to develop an effective method for recycling magnet scraps.

关键词： Fluoride system Magnesium halide Metal-scrap recycling Nd extraction Neodymium magnet Rare earth elements

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Optimization of an Artificial Intelligence Database and Camera Installation for Recognition of Risky Passenger Behavior in Railway Vehicles

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Computers, Materials & Continua 2025年第1期82卷 1277-1293页

作者： Min-kyeong Kim Yeong Geol Lee Won-hee park Su-hwan Yun Tae-Soon Kwon Duckhee Lee Railroad Test&Certification Division Korea Railroad Research Institute(KRRI)Cheoldo BangmulgwanroUiwang-si16105Republic of Korea Railroad Safety Division Korea Railroad Research Institute(KRRI)Cheoldo BangmulgwanroUiwang-si16105Republic of Korea

Urban railways are vital means of public transportation in *** than 30%of metropolitan residents use the railways,and this proportion is expected to *** enhance safety,the government has mandated the installation of closed-circuit televisions in all carriages by ***,cameras still monitored *** address this limitation,we developed a dataset of risk factors and a smart detection system that enables an immediate response to any abnormal behavior and intensive monitoring *** created an innovative learning dataset that takes into account seven unique risk factors specific to Korean railway *** data collection was conducted across the Shinbundang Line of the Incheon Transportation Corporation,and the Ui-Shinseol *** observed several behavioral characteristics and assigned unique annotations to *** also considered carriage *** performance was evaluated by camera placement and *** the camera installation plan was *** dataset will find immediate applications in domestic railway *** artificial intelligence algorithms will be verified shortly.

关键词： AI railway vehicle risk factor smart detection AI training data

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