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| 1 | Adverse events related to colonoscopy: Global trends and future challenges显示文摘Colonoscopy is a widely used method for diagnosing and treating colonic disease. The number of colonoscopies is increasing worldwide, and concerns about associated adverse events are growing. Large-scale studies using big data for post-colonoscopy complications have been reported. A colon perforation is a severe complication with a relatively high mortality rate. The perforation rate, as reported in large studies(≥ 50,000 colonoscopies) published since 2000, ranges from 0.005-0.085%. The trend in the overall perforation rate in the past 15 years has not changed significantly. Bleeding is a more common adverse event than perforation. Recent large studies(≥ 50,000 colonoscopies) have reported postcolonoscopy bleeding occurring in 0.001-0.687% of cases. Most studies about adverse events related to colonoscopy were performed in the West, and relatively few studies have been conducted in the East. The incidence of post-colonoscopy complications increases in elderly patients or patients with inflammatory bowel diseases. It is important to use a unified definition and refined data to overcome the limitations of previous studies. In addition, a structured training program for endoscopists and a systematic national management program are needed to reduce post-colonoscopy complications. In this review, we discuss the current trends in colonoscopy related to adverse events, as well as the challenges to be addressed through future research. | Su Young Kim Hyun-Soo Kim Hong Jun Park | 2019 | World Journal of Gastroenterology2019，25，2： | 22 |
| 2 | Hepatitis B viral load affects prognosis of hepatocellular carcinoma显示文摘Hepatocellular carcinoma(HCC)is a complex disease that is dually challenging to treat due to underlying chronic liver disease in addition to the cancer itself.The prognosis of patients with HCC is determined by intrahepatic tumor status and reserved hepatic function.Hepatitis B virus(HBV)is an established major risk factor of HCC development,and HBV viral load is being increasingly recognized as a prognostic factor in the presence of established HCC.High HBV viral load may affect the prognosis of HBV-related HCC patients in several ways.First,it is associated with more frequent recurrence of HBV-related HCC after treatment.Second,it is associated with more occurrence and severity of potentially life-threatening HBV reactivation.Last,it is associated with more worsened liver function,which limits the therapeutic options for HBV-related HCC.HBV,directly or indirectly,can induce hepatocarcinogenesis.In patients with a high HBV DNA level and subsequent active hepatitis,adhesion molecules expressed on the sinusoidal cells are up-regulated and may increase intrahepatic metastasis.HCC progression after treatment can lead to a poor prognosis by reducing number of normal functioning hepatocytes.Thus,high HBV viral load can affect the prognosis of patientswith HCC by frequent recurrence after treatment for HCC and deterioration of hepatic function associated with HCC progression.Recent meta-analysis showed that antiviral treatment reduces HCC recurrence and liver-related mortality after curative therapy of HCC.Given the strong relationship between high HBV DNA load and poor survival outcome of HCC patients due to cancer progression,it is expected that long-term antiviral therapy results in the sustained HBV suppression,control of inflammation,reduction in HCC progression,and eventually in improved overall survival. | Su Jong Yu Yoon Jun Kim | 2014 | World Journal of Gastroenterology2014，20，34： | 21 |
| 3 | Fabrication of 3D Printed PCL/PEG Polyblend Scaffold Using Rapid Prototyping System for Bone Tissue Engineering Application显示文摘 | Su A Park Sang Jin Lee Ji Min Seok Jun Hee Lee Wan Doo Kim Il Keun Kwon | 2018 | Journal of Bionic Engineering2018，15，3： | 15 |
| 4 | Management of entecavir-resistant chronic hepatitis B with adefovir-based combination therapies显示文摘AIM: To evaluate the long-term efficacy adefovir(ADV)-based combination therapies in entecavir(ETV)-resistant chronic hepatitis B(CHB) patients. METHODS: F i fty CHB pat ient s wi t h genotypic resistance to ETV at 13 medical centers in South Korea were included for the analysis. All the patients received rescue therapy with the combination of ADV plus ETV(ADV/ETV,n = 23) or ADV plus lamivudine(LMV)(ADV/LMV,n = 27) for more than 12 mo. Patients were monitored at least every 3-4 mo during ADV-based combination therapy by clinical examination as well as biochemical and virological assessments. Hepatitis B virus(HBV) DNA levels were measured by realtime PCR and logarithmically transformed for analysis. Cumulative rates of virologic response(VR; HBV DNA < 20 IU/m L) were calculated using the Kaplan-Meier method,and the difference was determined by a logrank test. Multivariate logistic regression and Cox proportional hazards models were used to identify independent risk factors significantly associated with short-term and long-term VR,respectively.RESULTS: Baseline median HBV DNA levels were 5.53(2.81-7.63) log10 IU/m L. The most commonly observed ETV genotypic mutation sites were rt184 and rt202. Patients were treated for a median of 27(12-45) mo. Overall,cumulative VR rates at 6,12,24,and 36 mo were 26%,36%,45%,and 68%,respectively. Patients treated with the ADV/ETV combination showed higher cumulative VR rates(35%,43%,65%,and 76%,respectively) than those with the ADV/LAM combination(18%,30%,30%,and 62%,respectively; P = 0.048). In the multivariate analysis,low baseline HBV DNA levels(< 5.2 log10 IU/m L) and initial virologic response at 3 mo(IVR-3; HBV DNA < 3.3 log10 IU/m L after 3 mo) were independent predictive factors for VR. Patients with favorable predictors achieved cumulative VR rates up to 90% at 36 mo. During the same period,the cumulative incidence of virologic breakthrough was as low as 6% in patients with the both favorable predictors.CONCLUSION: If tenofovir is not available,ADV/ETV combination could be considered in ETV-resistant patients with low HBV DNA titers,and may becontinued if IVR-3 is achieved. | Hyoung Su Kim Hyung Joon Yim Myoung Kuk Jang Ji Won Park Sang Jun Suh Yeon Seok Seo Ji Hoon Kim Bo Hyun Kim Sang Jong Park Sae Hwan Lee Sang Gyune Kim Young Seok Kim Jung Il Lee Jin-Woo Lee In Hee Kim Tae Yeob Kim Jin-Wook Kim Sook-Hyang Jeong Young Kul Jung Hana Park Seong Gyu Hwang | 2015 | World Journal of Gastroenterology2015，21，38： | 13 |
| 5 | Effective treatment strategies other than sorafenib for the patients with advanced hepatocellular carcinoma invading portal vein显示文摘Patients with hepatocellular carcinoma(HCC) accompanying portal vein tumor thrombosis(PVTT) have relatively few therapeutic options and an extremely poor prognosis. These patients are classified into barcelonaclinic liver cancer stage C and sorafenib is suggested as the standard therapy of care. However, overall survival(OS) gain from sorafenib is unsatisfactory and better treatment modalities are urgently required. Therefore, we critically appraised recent data for the various treatment strategies for patients with HCC accompanying PVTT. In suitable patients, even surgical resection can be considered a potentially curative strategy. Transarterial chemoembolization(TACE) can be performed effectively and safely in a carefully chosen population of patients with reserved liver function and sufficient collateral blood flow nearby the blocked portal vein. A recent metaanalysis demonstrated that TACE achieved a substantial improvement of OS in HCC patients accompanying PVTT compared with best supportive care. In addition, transarterial radioembolization(TARE) using yttrium-90 microspheres achieves quality-of-life advantages and is as effective as TACE. A large proportion of HCC patients accompanying PVTT are considered to be proper for TARE. Moreover, TACE or TARE achieved comparable outcomes to sorafenib in recent studies and it was also reported that the combination of radiotherapy with TACE achieved a survival gain compared to sorafenib in HCC patients accompanying PVTT. Surgical resectionbased multimodal treatments, transarterial approaches including TACE and TARE, and TACE-based appropriate combination strategies may improve OS of HCC patients accompanying PVTT. | Su Jong Yu Yoon Jun Kim | 2015 | World Journal of Hepatology2015，7，11： | 12 |
| 6 | Outcome after endoscopic submucosal dissection for early gastric cancer in Korea显示文摘Endoscopic treatment,such as endoscopic mucosal resection(EMR) and endoscopic submucosal dissection(ESD),has been established as one of the treatment options for selected cases with early gastric cancer(EGC).Most studies on this topic have been carried out by researchers in Japan.Recently,the experience in EMR/ESD for EGC outside Japan is increasingly reported.In Korea,gastric cancer is the most common malignant disease,and the second leading cause of cancer death.Currently,EMR for EGC is widely performed in many centers in Korea.Early results with a shortterm follow-up period are very promising in Korea.Thecomplete resection rate of EMR was 37.8%-94.3%,and that of ESD was 77.4%-93.1%.In this review,we will provide an overview of the outcomes of endoscopic treatments in Korea. | Jun Haeng Lee Su Jin Hong Jae Young Jang Seong Eun Kim Sang Young Seol | 2011 | World Journal of Gastroenterology2011，17，31： | 8 |
| 7 | Arabidopsis BAG1 Functions as a Cofactor in Hsc70-Mediated Proteasomal Degradation of Unimported Plastid Proteins显示文摘 | Dong Wook Lee Su Jin Kim Young Jun Oh Bongsoo Choi Juhun Lee Inhwan Hwang | 2016 | Molecular Plant2016，9，10： | 8 |
| 8 | Timing of upper gastrointestinal endoscopy does not influence short-term outcomes in patients with acute variceal bleeding显示文摘AIM To examine the association between the timing of endoscopy and the short-term outcomes of acute variceal bleeding in cirrhotic patients.METHODS This retrospective study included 274 consecutive patients admitted with acute esophageal variceal bleeding of two tertiary hospitals in Korea. We adjusted confounding factors using the Cox proportional hazards model and the inverse probability weighting(IPW) method. The primary outcome was the mortality of patients within 6 wk.RESULTS A total of 173 patients received urgent endoscopy(i.e., ≤ 12 h after admission), and 101 patients received nonurgent endoscopy(> 12 h after admission). The 6-wk mortality rate was 22.5% in the urgent endoscopy group and 29.7% in the non-urgent endoscopy group, and there was no significant difference between the two groups before(P = 0.266) and after IPW(P = 0.639). The length of hospital stay was statistically different between the urgent group and non-urgent group(P = 0.033); however, there was no significant difference in the inhospital mortality rate between the two groups(8.1% vs 7.9%, P = 0.960). In multivariate analyses, timing of endoscopy was not associated with 6-wk mortality(hazard ratio, 1.297; 95% confidence interval, 0.806-2.089; P = 0.284).CONCLUSION In cirrhotic patients with acute variceal bleeding, the timing of endoscopy may be independent of short-term mortality. | Jeong-Ju Yoo Young Chang Eun Ju Cho Ji Eun Moon Sang Gyune Kim Young Seok Kim Yun Bin Lee Jeong-Hoon Lee Su Jong Yu Yoon Jun Kim Jung-Hwan Yoon | 2018 | World Journal of Gastroenterology2018，24，44： | 8 |
| 9 | Efficacy of cap-assisted colonoscopy according to lesion location and endoscopist training level显示文摘AIM: To evaluate the efficacy of cap-assisted colonoscopy(CAC) for detection of colorectal polyps and adenomas according to the lesion location and endoscopist training level.METHODS: Patients 20 years or older, who underwent their first screening colonoscopy in a single tertiary center from May 2011 to December 2012 were enrolled in this study. All patients underwent either CAC or standard colonoscopy(SC), and all of the procedures were performed by 11 endoscopists(8 trainees and 3 experts). All procedures were performed with highdefinition colonoscopes and narrow band imaging. The eight trainees had experiences of performing 150 to 500 colonoscopies, and the three experts had experiences of performing more than 3000 colonoscopies. A 4-mmlong transparent cap was attached to the end of a colonoscope in the CAC group. We retrospectively evaluated the number of polyps and adenomas, polyp detection rate(PDR), and the number of adenomas and adenoma detection rate(ADR) according to the lesion location and endoscopist training level between CAC and SC. We also evaluated the number of polyps and adenomas according to their size between CAC and SC.RESULTS: Overall, PDR and ADR using CAC were significantly higher than those using SC for both whole colon(48.5% vs 40.7%, P = 0.012; 35.7% vs 28.3%, P = 0.012) and right-side colon(35.3% vs 26.6%, P = 0.002; 27.0% vs 16.9%, P < 0.001). The number of polyps and adenomas per patient using CAC was significantly higher than that using SC for both the whole colon(1.07 ± 1.59 vs 0.82 ± 1.31, P = 0.008; 0.72 ± 1.32 vs 0.50 ± 1.01, P = 0.003) and right-side colon(0.66 ± 1.18 vs 0.41 ± 0.83, P < 0.001; 0.46 ± 0.97 vs 0.25 ± 0.67, P < 0.001). In the trainee group, the PDR and ADR using CAC were significantly higher than those using SC for both the whole colon(46.7% vs 39.7%, P = 0.040; 33.9% vs 26.0%, P =0.012) and right-side colon(34.2% vs 26.5%, P = 0.015; 25.3% vs 15.9%, P = 0.001). In the expert group, the PDR and ADR using CAC were significantly higher than those using SC only for the right-side colon(42.1% vs 27.0%, P =0.035; 36.8% vs 21.0%, P = 0.020).CONCLUSION: CAC is more effective than SC for detection of colorectal polyps and adenomas, especially when performed by trainees and when the lesions are located in the right-side colon. | Dong Jun Kim Hyung Wook Kim Su Bum Park Dae Hwan Kang Cheol Woong Choi Joung Boom Hong Byoung Hoon Ji Chang Seok Lee | 2015 | World Journal of Gastroenterology2015，21，20： | 8 |
| 10 | Is endoscopic ultrasonography essential for endoscopic resection of small rectal neuroendocrine tumors?显示文摘AIM To evaluate the importance of endoscopic ultrasonography(EUS) for small(≤ 10 mm) rectal neuroendocrine tumor(NET) treatment.METHODS Patients in whom rectal NETs were diagnosed by endoscopic resection(ER) at the Pusan National University Yangsan Hospital between 2008 and 2014 were included in this study. A total of 120 small rectal NETs in 118 patients were included in this study. Histologic features and clinical outcomes were analyzed, and the findings of endoscopy, EUS and histology were compared. RESULTS The size measured by endoscopy was not significantly different from that measured by EUS and histology(r = 0.914 and r = 0.727 respectively). Accuracy for the depth of invasion was 92.5% with EUS. No patients showed invasion of the muscularis propria or metastasis to the regional lymph nodes. All rectal NETswere classified as grade 1 and demonstrated an L-cell phenotype. Mean follow-up duration was 407.54 ± 374.16 d. No patients had local or distant metastasis during the follow-up periods. CONCLUSION EUS is not essential for ER in the patient with small rectal NETs because of the prominent morphology and benign behavior. | Su Bum Park Dong Jun Kim Hyung Wook Kim Cheol Woong Choi Dae Hwan Kang Su Jin Kim Hyeong Seok Nam | 2017 | World Journal of Gastroenterology2017，23，11： | 7 |
| 11 | Efficacy of Pegylated Interferon Monotherapy versus Sequential Therapy of Entecavir and Pegylated Interferon in Hepatitis B e Antigen-Positive Hepatitis B Patients: A Randomized, Multicenter, Phase IIIb Open-Label Study (POTENT Study)显示文摘 | Dae Won Jun Sang Bong Ahn Tae Yeob Kim Joo Hyun Sohn Sang Gyune Kim Se Whan Lee Byung Ho Kim Dong Joon Kim Ja Kyung Kim Hyoung Su Kim Seong Gyu Hwang Won Choong Choi Won Young Tak Heon Ju Lee Ki Tae Yoon Byung Cheol Yun Sung Wook Lee Soon Koo Baik Seung Ha Park Ji Won Park Sol Ji Park Ji Sung Lee | 2018 | Chinese Medical Journal2018，，14： | 5 |
| 12 | Needle-knife fistulotomy vs double-guidewire technique in patients with repetitive unintentional pancreatic cannulations显示文摘AIM: To compare the success rates and adverse events of early needle-knife fistulotomy(NKF) and double-guidewire technique(DGT) in patients with repetitive unintentional pancreatic cannulations.METHODS: From a total of 1650 patients admitted for diagnostic or therapeutic endoscopic retrograde cholangiopancreatography(ERCP) at a single tertiary care hospital(Pusan National University Yangsan Hospital, Yangsan, South Korea) between January2009 and December 2012, 134(8.1%) patients with unsuccessful biliary cannulation after 5 min trial of conventional methods, together with 5 or more repetitive unintentional pancreatic cannulations, were enrolled in the study. Early NKF and DGT groups were assigned 67 patients each. In the DGT group, NKF was performed for an additional 7 min if successful cannulation was not achieved.RESULTS: The success rates with early NKF andthe DGT were 79.1%(53/67) and 44.8%(30/67)(P< 0.001), respectively. The incidence of post-ERCP pancreatitis(PEP) was lower in the early NKF group than in the DGT group [4.5%(3/67) vs 14.9%(10/67),P = 0.041]. The mean cannulation times in the early NKF and DGT groups after assignment were 257 s and312 s(P = 0.013), respectively.CONCLUSION: Our data suggest that early NKF should be considered as the first approach to selective biliary cannulation in patients with repetitive unintentional pancreatic cannulations. | Su Jin Kim Dae Hwan Kang Hyung Wook Kim Cheol Woong Choi Su Bum Park Byeong Jun Song Young Mi Hong | 2015 | World Journal of Gastroenterology2015，21，19： | 4 |
| 13 | Enhanced efficiency in lead-free bismuth iodide with post treatment based on a hole-conductor-free perovskite solar cell显示文摘Despite the excellent merits of lead perovskite solar cells,their instability and toxicity still present a bottleneck for practical applications.Bismuth perovskite has emerged as a candidate for photovoltaic (PV) applications,because it not only has a low toxicity but is also stable in air.However,the power conversion efficiency (PCE) remains an unsolved problem.We performed band gap tuning experiments to improve the efficiency.The absorption of ABi3I10 structure films was extended within the visible region,and the optical band gap was decreased considerably compared to that for Cs3Bi2I9.Furthermore,we explained the correlation between the structure and the optical properties via a first-principles study.A device employing CsBi3I10 as a photoactive layer exhibits a PCE of 1.51% and an excellent ambient stability over 30 days. | Jongmoon Shin Maengsuk Kim Sujeong Jung Chang Su Kim Jucheol Park Aeran Song Kwun-Bum Chung Sung-Ho Jin Jun Hee Lee Myungkwan Song | 2018 | Nano Research2018，11，12： | 4 |
| 14 | Fucoidan protects hepatocytes from apoptosis and inhibits invasion of hepatocellular carcinoma by up-regulating p42/44 MAPK-dependent NDRG-1/CAP43显示文摘Fucoidan is a traditional Chinese medicine suggested to possess anti-tumor effects.In this study the anti-metastatic effects of fucoidan were investigated in vitro in human hepatocellular carcinoma(HCC) cells(Huh-7 and SNU-761) under normoxic and hypoxic conditions and in vivo using a distant liver metastasis model involving injection of MH134 cells into spleen via the portal vein.Its ability to protect hepatocytes against bile acid(BA)-induced apoptosis was investigated in primary hepatocytes.Fucoidan was found to suppress the invasion of HCC cells through up-regulation of p42/44 MAPKdependent NDRG-1/CAP43 and partly,under normoxic conditions,through up-regulation of p42/44MAPK-dependent VMP-1 expression.It also significantly decreased liver metastasis in vivo.As regards its hepatoprotective effect,fucoidan decreased BA-induced hepatocyte apoptosis as shown by the attenuation of caspase-8,and-7 cleavages and suppression of the mobilization of caspase-8 and Fas associated death domain(FADD) into the death-inducing signaling complex.In summary,fucoidandisplays inhibitory effects on proliferation of HCC cells and protective effects on hepatocytes.The results suggest fucoidan is a potent suppressor of tumor invasion with hepatoprotective effects. | Yuri Cho Jung-Hwan Yoon Jeong-ju Yoo Minjong Lee Dong Hyeon Lee Eun Ju Cho Jeong-Hoon Lee Su Jong Yu Yoon Jun Kim Chung Yong Kim | 2015 | Acta Pharmaceutica Sinica B2015，5，6： | 3 |
| 15 | Stereotactic body radiation therapy for inoperable hepatocellular carcinoma as a local salvage treatment after incomplete transarterial chemoembolization显示文摘 | Jin‐Kyu Kang Mi‐Sook Kim Chul Koo Cho Kwang Mo Yang Hyung Jun Yoo Jin Ho Kim Sun Hyun Bae Da Hoon Jung Kum Bae Kim Dong Han Lee Chul Ju Han Jin Kim Su Cheol Park Young Han Kim | 2012 | Cancer2012，，21： | 3 |
| 16 | Endoscopic resection using band ligation for esophageal SMT in less than 10mm显示文摘AIM:To evaluate the safety and feasibility of endoscopic resection using band ligation(EMR-B) for the diagnostic and therapeutic removal of tumors located in the esophageal subepithelial region having originated from the submucosa.METHODS:From May 2009 to September 2014,after medical chart and endoscopic ultrasonography report review,a total of 15 esophageal tumors located in the submucosal layer were resected by EMR-B.Previous symptom,location,pathology,complete resection rate,incidence of complications,incidence of minor complication,size,length of procedures time and follow up months were evaluated.To evaluate local recurrence at the resection site,periodic follow-up endoscopic examination was undertaken in all of the patients.The first endoscopic examination was performed about 6 mo after the endoscopic resection.Thereafter,the endoscopic follow up were scheduled annually.RESULTS:The mean age was 50.3 ± 9.67 years.The mean tumor size was 6.93 ± 3.15 mm and most of the lesions size was between 5-10 mm in diameter(10/15,66.6%).In all patients,endoscopic en bloc resection was achieved.In one patient,the vertical margin was involved.The mean procedural time was 8.86 ± 3.66 min.In all patients,no evidence of severe complications such as perforation or bleeding occurred.Minor complications such as chest pain(2/15,13.3%) and heartburn(3/15,13.3%) were reported but they symptoms were controlled by proton pump inhibitors,ulcermin and/or analgesics.Histologic assessments of the removed specimens revealed 10 granular cell tumors(66.6%),4 leiomyomas(16.6%) and one lipoma(6.6%).No recurrence was observed during the mean follow up period of 45 ± 3.5 mo(range:5-64 mo).CONCLUSION:EMR-B might be considered safe and effective for the diagnosis and treatment of lesions measuring less than 10 mm in diameter. | Joung Boom Hong Cheol Woong Choi Hyung Wook Kim Dae Hwan Kang Su Bum Park Su Jin Kim Dong Jun Kim | 2015 | World Journal of Gastroenterology2015，21，10： | 3 |
| 17 | Experimental and numerical analysis of spray-atomization characteristics of biodiesel fuel in various fuel and ambient temperatures conditions显示文摘 | Su Han Park Hyung Jun Kim Hyun Kyu Suh Chang Sik Lee | 2009 | International Journal of Heat and Fluid Flow2009，，5： | 3 |
| 18 | Rectal tonsil:A case report and literature review显示文摘The rectal tonsil,a reactive proliferation of lymphoidtissue located in the rectum,is rare.Histologically,benign lymphoid hyperplasia of the rectum is usuallycharacterized by large lymphoid follicles with activegerminal centers and a narrow surrounding mantlezone and marginal zone.This lesion is benign,but must be differentiated from the polypoid type of mucosaassociated lymphoid tissue lymphomas.In the current paper,we present a case of rectal tonsil in a 59-yearold woman.We describe the endoscopic ultrasound imaging findings with literature review. | Joung Boom Hong Hyung Wook Kim Dae Hwan Kang Cheol Woong Choi Su Bum Park Dong Jun Kim Byoung Hoon Ji Kyung Won Koh | 2015 | World Journal of Gastroenterology2015，21，8： | 3 |
| 19 | Survival of infiltrative hepatocellular carcinoma patients with preserved hepatic function after treatment with transarterial chemoembolization显示文摘 | Eun Sun Jang Jung-Hwan Yoon Jin Wook Chung Eun Ju Cho Su Jong Yu Jeong-Hoon Lee Yoon Jun Kim Hyo-Suk Lee Chung Yong Kim | 2013 | Journal of Cancer Research and Clinical Oncology2013，，4： | 2 |
| 20 | Trigonelline attenuates the adipocyte differentiation and lipid accumulation in 3T3-L1 cells显示文摘 | Soundharrajan Ilavenil Mariadhas Valan Arasu Jeong-Chae Lee Da Hye Kim Sang Gun Roh Hyung Su Park Gi Jun Choi Vijayakumar Mayakrishnan Ki Choon Choi | 2013 | Phytomedicine2013，，： | 2 |
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