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Sequential transcatheter arterial chemoembolization and portal vein embolization before right hemihepatectomy in patients with hepatocellular carcinoma

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Hepatobiliary & Pancreatic Diseases International 2020年第3期19卷 244-251页

作者： Gil Chun Park Sung Gyu Lee Young In Yoon Kyu Bo Sung Gi Young Ko dong Il Gwon dong hwan jung Yong Kyu jung Division of Hepatobiliary Surgery and Liver Transplantation Department of SurgeryAsan Medical CenterUniversity of Ulsan College of MedicineSeoulKorea Department of Radiology and Research Institute of Radiology Asan Medical CenterUniversity of Ulsan College of MedicineSeoulKorea

Background:Recent studies showed that sequential selective transcatheter arterial chemoembolization(TACE)and portal vein embolization(PVE)provided better future liver remnant(FLR)regeneration rate and disease-free survival following surgery compared with PVE *** present study aimed to clarify whether preoperative sequential TACE and PVE before right hemihepatectomy can reduce postoperative hepatocellular carcinoma(HCC)recurrence and improve long-term disease-free and overall ***:Recurrence and survival outcomes were retrospectively evaluated in 205 patients with HCC who underwent right hemihepatectomy by a single surgeon from November 1993 to November *** were divided into four groups according to the procedure performed before the surgery:sequential TACE and PVE(TACE-PVE),PVE-only,TACE-only,or na?ve control *** baseline patient and tumor characteristics,postoperative outcomes,recurrence-free survival and overall survival were ***:Baseline patient and tumor characteristics upon diagnosis were similar in all four groups,while sequential TACE and PVE were well *** TACE-PVE group had a higher mean increase in percentage FLR volume compared with that of the PVE-only group(17.46%±6.63%vs.12.14%±5.93%;P=0.001).The TACE-PVE group had significantly better overall and disease-free survival rates compared with the other groups(both P<0.001).Conclusions:Sequential TACE and PVE prior to surgery can be an effective therapeutic strategy for patients with HCC scheduled for major hepatic *** active application of preoperative sequential TACE and PVE for HCC would allow more patients with marginal FLR volume to become candidates for major hepatic resection by promoting compensatory FLR hypertrophy without the deterioration of basal hepatic functional reserve or tumor progression.

关键词： Sequential selective transcatheter Arterial chemoembolization Portal vein embolization Hepatocellular carcinoma Future liver remnant

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Salvage living donor liver transplantation for recurrent hepatocellular carcinoma after prior laparoscopic hepatectomy

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Hepatobiliary & Pancreatic Diseases International 2018年第5期17卷 473-476页

作者： Seok-hwan Kim Ki-Hun Kim Tae-Yong Ha dong-hwan jung Gil-Chun Park Sung-Gyu Lee Division of Hepatobiliary Surgery and Liver Transplantation Department of SurgeryAsan Medical CenterUniversity of Ulsan College of MedicineSeoulKorea Department of Surgery Chungnam National University HospitalChungnam National University School of MedicineDaejeonKorea

Salvage liver transplantation(LT)is frequently performed on patients who experience recurrent hepatocellular carcinoma(HCC)after primary hepatectomy for HCC[1,2].The main concern in these patients is the technical feasibility of salvage LT,especially as prior hepatectomy may result in heavy adhesions[3,4].Salvage living donor LT(LDLT)is a more demanding procedure than salvage deceased donor LT(DDLT)using an entire donor graft with a long vascular pedicle[5,6].Because less than optimal dissection of perihepatic adhesions could result in uncontrollable pinpoint bleedings at the dissection surface[1,5],many transplant surgeons avoid performing salvage *** invasive laparoscopic hepatectomy(LH)results in fewer intraperitoneal adhesions than the open method,reducing the difficulty of surgical dissection during future LT[7–10].To date,however,no study has compared salvage LDLT for recurrent HCC after LH to that after open hepatectomy(OH).

关键词： LDLT experience recurrent

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A surgical technique using the gastroepiploic vein for portal inflow restoration in living donor liver transplantation in a patient with diffuse portomesenteric thrombosis

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国际肝胆胰疾病杂志:英文版 2023年第5期22卷 537-540页

作者： Sang-Hoon Kim Deok-Bog Moon Woo-Hyoung Kang dong-hwan jung Sung-Gyu Lee Division of Hepatobiliary Surgery and Liver Transplantation Department of SurgeryAsan Medical Center and University of Ulsan College of Medicine88 Olympic-ro 43-gilSongpa-guSeoul 05505Korea

Portal vein thrombosis(PVT)is no longer a definitive contraindication in liver transplants(LTs)[1].Complex vascular reconstructions such as cavoportal hemitransposition(CPHT)[2–5],renoportal anastomosis(RPA)[6,7],and use of sizable collaterals(pericholedochal varix[8,9],coronary vein,peripancreatic or perigastroesophageal varices[10],right superior colic vein[11],ileocolic vein[12],and left gastric vein[13]),or combined liverpancreas-small bowel transplant[14]are required for portal inflow in patients with total portosplenomesenteric thrombosis.

关键词： thrombosis anastomosis portal

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Portal vein stenting as a significant risk factor for biliary stricture in adult living donor liver transplantation

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Hepatobiliary & Pancreatic Diseases International 2016年第5期15卷 480-486页

作者： Min-Ho Shin Deok-Bog Moon Sung-Gyu Lee Shin hwang Ki-Hun Kim Chul-Soo Ahn Tae-Yong Ha Gi-Won Song dong-hwan jung Gil-Chun Park Young-In Yun Wan-Jun Kim Woo-Hyoung Kang Seok-hwan Kim Gi-Young Ko Division of Hepatobiliary Surgery and Liver Transplantation Department of SurgeryAsan Medical CenterUniversity of Ulsan College of Medicine88 0lympic-ro 43 gilSongpa-guSeoul 05505Korea Department of Radiology and Research Institute of Radiology Asan Medical CenterUniversity of Ulsan College of Medicine88 0lympic-ro 43 gilSongpa-guSeoul 05505Korea

BACKGROUND: Although perioperative portal vein (PV) stent implantation is an effective treatment for steno-occlusive disease in adult living donor liver transplantation (LDLT) re-cipients, we experienced high incidence of biliary anastomotic strictures (BAS) after PV stenting. In this study, we sought to clarify the relation between BAS and PV stenting and to suggest the possible mechanism of BAS and measures to reduce its in-cidence. METHODS: We retrospectively analyzed 44 LDLT recipients who underwent PV stent implantation across the line of PV anastomosis regardless of the location of steno-occlusion (stent group) and their matched controls (non-stented LDLT recipients, n=131). RESULTS: The incidence of BAS was higher in patients in the stent group than that in the control group (43.2% vs 17.6%, P=0.001). Cumulative 6-month and 1-, 2- and 5-year BAS rates were 31.8%, 34.1%, 41.4% and 43.2%, respectively, in the stent group and 13.0%, 13.8%, 16.1% and 17.8%, respectively, in the control group (P=0.001). Multivariate analysis revealed that PV stenting was an independent risk factor for BAS. CONCLUSIONS: Although PV stent implantation is a reliable treatment modality for steno-occlusive PV in adult LDLT recipients, innovative methods to prevent the PV stent from crossing the line of PV anastomosis may be necessary to reduce the incidence of postoperative BAS.

关键词： portal vein stenting biliary stricture living donor liver transplantation

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Disordered Structure and Reversible Phase Transformation from K-Birnessite to Zn-Buserite Enable High-Performance Aqueous Zinc-lon Batteries

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Energy & Environmental Materials 2024年第3期7卷 100-111页

作者： Nibagani Naresh Suyoon Eom Sang Jun Lee Su hwan Jeong Ji-Won jung Young Hwa jung Joo-Hyung Kim Department of Materials Engineering and Convergence Technology Gyeongsang National University(GNU)Jinju 52828South Korea School of Material Science and Engineering(Ceramic Engineering) Gyeongsang National University(GNU)Jinju 52828South Korea School of Materials Science and Engineering University of Ulsan(UOU)Ulsan 44776South Korea PLS-ⅡBeamline Division Pohang Accelerator Laboratory(PAL)Pohang 37673South Korea

The layeredδ-MnO_(2)(dMO)is an excellent cathode material for rechargeable aqueous zinc-ion batteries owing to its large interlayer distance(~0.7 nm),high capacity,and low cost;however,such cathodes suffer from structural degradation during the long-term cycling process,leading to capacity *** this study,a Co-doped dMO composite with reduced graphene oxide(GC-dMO)is developed using a simple cost-effective hydrothermal *** degree of disorderness increases owing to the hetero-atom doping and graphene oxide *** is demonstrated that layered dMO and GC-dMO undergo a structural transition from K-birnessite to the Zn-buserite phase upon the first discharge,which enhances the intercalation of Zn^(2+)ions,H_(2)O molecules in the layered *** GC-dMO cathode exhibits an excellent capacity of 302 mAh g^(-1)at a current density of 100 mAg^(-1)after 100 cycles as compared with the dMO cathode(159 mAhg^(-1)).The excellent electrochemical performance of the GC-dMO cathode owing to Co-doping and graphene oxide sheets enhances the interlayer gap and disorderness,and maintains structural stability,which facilitates the easy reverse intercalation and de-intercalation of Zn^(2+)ions and H_(2)O ***,GC-dMO is a promising cathode material for large-scale aqueous ZIBs.

关键词： aqueous zinc-ion batteries birnessite buserite disordered structure phase transformation

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In situ infrared, Raman and X-ray spectroscopy for the mechanistic understanding of hydrogen evolution reaction

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Journal of Energy Chemistry 2024年第3期90卷 632-651,I0014页

作者： Andi Haryanto Kyounghoon jung Chan Woo Lee dong-Wan Kim Department of Chemistry Kookmin UniversitySeoul 02707Republic of Korea School of Civil Environmental and Architectural EngineeringKorea UniversitySeoul 02841Republic of Korea

Hydrogen production by water reduction reactions has received considerable attention because hydrogen is considered a clean-energy carrier,key for a sustainable energy *** methods have been widely used to study the reaction mechanism of the hydrogen evolution reaction(HER),but the calculation results need to be supported by experimental results and direct evidence to confirm the mechanistic *** this review,we discuss the fundamental principles of the in situ spectroscopic strategy and a theoretical model for a mechanistic understanding of the *** addition,we investigate recent studies by in situ Fourier transform infrared(FTIR),Raman spectroscopy,and X-ray absorption spectroscopy(XAS) and cover new findings that occur at the catalyst-electrolyte interface during *** spectroscopic strategies provide practical ways to elucidate catalyst phase,reaction intermediate,catalyst-electrolyte interface,intermediate binding energy,metal valency state,and coordination environment during HER.

关键词： Hydrogen evolution reaction Infrared spectroscopy Raman spectroscopy X-ray absorption spectroscopy Reaction mechanism

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Nanozyme‑Engineered Hydrogels for Anti‑Inflammation and Skin Regeneration

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Nano-Micro Letters 2024年第6期16卷 127-179页

作者： Amal George Kurian Rajendra K.Singh Varsha Sagar jung‑hwan Lee Hae‑Won Kim Institute of Tissue Regeneration Engineering(ITREN) Dankook UniversityCheonan 31116Republic of Korea Department of Nanobiomedical Science&BK21 NBM Global Research Center for Regenerative Medicine Dankook UniversityCheonan 31116Republic of Korea Department of Biomaterials Science School of DentistryDankook UniversityCheonan 31116Republic of Korea UCL Eastman‑Korea Dental Medicine Innovation Centre Dankook UniversityCheonan 31116Republic of Korea Cell and Matter Institute Dankook UniversityCheonan 31116Republic of Korea Mechanobiology Dental Medicine Research Center Dankook UniversityCheonan 31116Republic of Korea

Inflammatory skin disorders can cause chronic scarring and functional impairments,posing a significant burden on patients and the healthcare *** therapies,such as corticosteroids and nonsteroidal anti-inflammatory drugs,are limited in efficacy and associated with adverse ***,nanozyme(NZ)-based hydrogels have shown great promise in addressing these ***-based hydrogels possess unique therapeutic abilities by combining the therapeutic benefits of redox nanomaterials with enzymatic activity and the water-retaining capacity of *** multifaceted therapeutic effects of these hydrogels include scavenging reactive oxygen species and other inflammatory mediators modulating immune responses toward a pro-regenerative environment and enhancing regenerative potential by triggering cell migration and *** review highlights the current state of the art in NZ-engineered hydrogels(NZ@hydrogels)for anti-inflammatory and skin regeneration *** also discusses the underlying chemo-mechano-biological mechanisms behind their ***,the challenges and future directions in this ground,particularly their clinical translation,are *** insights provided in this review can aid in the design and engineering of novel NZ-based hydrogels,offering new possibilities for targeted and personalized skin-care therapies.

关键词： Nanozymes Hydrogels ROS scavenging Anti-inflammation Skin regeneration

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Assessment of pathogens and risk factors associated with bloodstream infection in the year after pediatric liver transplantation

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World Journal of Gastroenterology 2022年第11期28卷 1159-1171页

作者： Yeong Eun Kim Ho jung Choi Hye-Jin Lee Hyun Ju Oh Mi Kyoung Ahn Seak Hee Oh jung-Man Namgoong Dae Yeon Kim Won Kyoung Jhang Seong Jong Park dong-hwan jung Deok Bog Moon Gi-Won Song Gil-Chun Park Tae-Yong Ha Chul-Soo Ahn Ki-Hun Kim Shin hwang Sung Gyu Lee Kyung Mo Kim Department of Pediatrics Asan Medical Center Children's HospitalUniversity of Ulsan College of MedicineSeoul 05505South Korea Division of Pediatric Surgery Department of SurgeryAsan Medical Center Children's HospitalUniversity of Ulsan College of MedicineSeoul 05505South Korea Division of Hepatobiliary Surgery and Liver Transplantation Department of SurgeryAsan Medical CenterUniversity of Ulsan College of MedicineSeoul 05505South Korea

BACKGROUND Bloodstream infection(BSI)is one of the most significantly adverse events that can occur after liver transplantation(LT)in *** To analyze the profile of BSI according to the postoperative periods and assess the risk factors after pediatric *** Clinical data,collected from medical charts of children(n=378)who underwent primary LT,were retrospectively *** primary outcome considered was BSI in the first year after *** and multivariate analyses were performed to identify risk factors for BSI and respective odds ratios(ORs).RESULTS Of the examined patients,106(28%)experienced 162 episodes of pathogen-confirmed BSI during the first year after *** were 1.53±0.95 episodes per children(mean±SD)among BSIcomplicated patients with a median onset of 0.4 mo *** most common pathogenic organisms identified were Coagulase-negative staphylococci,followed by Enterococcus *** Streptococcus *** half(53%)of the BSIs were of unknown *** analysis demonstrated that young age(≤1.3 year;OR=2.1,P=0.011),growth failure(OR=2.1,P=0.045),liver support system(OR=4.2,P=0.008),and hospital stay of>44 d(OR=2.3,P=0.002)were independently associated with BSI in the year after *** BSI was frequently observed in patients after pediatric LT,affecting survival *** profile of BSI may inform clinical treatment and management in high-risk children after LT.

关键词： Bloodstream infection Liver transplantation Children Pathogens

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Effects of Initial and Boundary Conditions on Heavy Rainfall Simulation over the Yellow Sea and the Korean Peninsula:Comparison of ECMWF and NCEP Analysis Data Effects and Verification with Dropsonde Observation

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Advances in Atmospheric Sciences 2024年第9期41卷 1787-1803页

作者： Jiwon hwanG dong-Hyun CHA donghyuck YOON Tae-Young GOO Sueng-Pil jung Department of Civil Urban Earth and Environmental Engineering Ulsan National Institute of Science and TechnologyUlsan 44919South Korea Program in Atmospheric and Oceanic Sciences Princeton UniversityPrincetonNew Jersey 08544USA National Institute of Meteorological Sciences NIMSJeju 63568South Korea

This study evaluated the simulation performance of mesoscale convective system(MCS)-induced precipitation,focusing on three selected cases that originated from the Yellow Sea and propagated toward the Korean *** evaluation was conducted for the European Centre for Medium-Range Weather Forecasts(ECMWF)and National Centers for Environmental Prediction(NCEP)analysis data,as well as the simulation result using them as initial and lateral boundary conditions for the Weather Research and Forecasting ***,temperature and humidity profiles from 3D dropsonde observations from the National Center for Meteorological Science of the Korea Meteorological Administration served as validation *** showed that the ECMWF analysis consistently had smaller errors compared to the NCEP analysis,which exhibited a cold and dry bias in the lower levels below 850 *** model,in terms of the precipitation simulations,particularly for high-intensity precipitation over the Yellow Sea,demonstrated higher accuracy when applying ECMWF analysis data as the initial *** advantage also positively influenced the simulation of rainfall events on the Korean Peninsula by reasonably inducing convective-favorable thermodynamic features(i.e.,warm and humid lower-level atmosphere)over the Yellow *** conclusion,this study provides specific information about two global analysis datasets and their impacts on MCS-induced heavy rainfall simulation by employing dropsonde observation ***,it suggests the need to enhance the initial field for MCS-induced heavy rainfall simulation and the applicability of assimilating dropsonde data for this purpose in the future.

关键词： initial conditions dropsonde heavy rainfall forecast global model analysis evaluation

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[001]-texturing of(K,Na)NbO_(3)-based piezoceramics with a pseudocubic structure and their application to piezoelectric devices

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Journal of Materiomics 2024年第3期10卷 632-642页

作者： Su-hwan Go Seok-jung Park Seung-Hyun Kim Seok-June Chae Eun-Ji Kim Geun-Su Lee Sahn Nahm Department of Materials Science and Engineering Korea UniversitySeoul02841Republic of Korea

0.96(K_(0.5)Na_(0.5-z)Li_(z))(Nb_(0.92)Sb_(0.08))O_(3)-0.04(Ca_(0.5)Sr_(0.5))ZrO_(3)[(KN_(0.5-z)L_(z))NS-CSZ]piezoceramics(0≤z≤0.04)were aligned in the[001]orientation using 3%(in mole)NaNbO_(3)templates with a large Lotgering factor(>97%).Their crystal structures transformed from the orthorhombic-pseudocubic(O-P)structure to the orthorhombic-tetragonal-pseudocubic(O-T-P)structure with an increasing *** P structure was interpreted as a rhombohedral R3m *** piezoelectricity of the compositions increased after[001]-texturing,and the enhancement was proportional to the O phase *** composition(z=0.03)exhibited the highest piezoelectric constant(d_(33);670 pC/N)and electromechanical coupling factor(k_(p);0.56).Piezoelectric energy harvesters were produced using the untextured and textured samples(z=0.03).The textured harvester delivered a large power density of 26.6 mW/mm^(3),which was larger than that of the untextured harvester owing to the enhanced kp and d_(33)×g_(33) of the textured piezoceramic.A multilayer actuator was produced using the textured sample(z=0.03),and it exhibited a large acceleration(44.2 G)and displacement(±3,730 mm)at±25 ***,the[001]-textured(KN_(0.47)L_(0.03))NS-CSZ piezoceramic is suitable for piezoelectric energy harvesters and actuators.

关键词： KNN-Based piezoceramic Lead-free Energy harvester Actuator Reactive template grain growth

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