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80篇 您的检索式:作者名="Dong AM"
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1Endoscopic removal of gastric ectopic pancreas:An initial experience with endoscopic submucosal dissection显示文摘AIM:To evaluate the therapeutic usefulness and safety of endoscopic resection in patients with gastric ectopic pancreas.METHODS:A total of eight patients with ectopic pancreas were included.All of them underwent endoscopic ultrasonography before endoscopic resection.Endo-scopic resection was performed by two methods:endo-scopic mucosal resection(EMR)by the injection-and-cut technique or endoscopic mucosal dissection(ESD).RESULTS:We planned to perform EMR in all eight cases but EMR was successful in only four cases.In the other four cases,saline spread into surrounding normal tissues and the lesions becameattened,which made it impossible to remove them by EMR.Inthose four cases,we performed ESD and removed the lesions without any complications.CONCLUSION:If conventional EMR is difficult to remove gastric ectopic pancreas,ESD is a feasible alternative method for successful removal.Dong Yup Ryu Gwang Ha Kim Do Youn Park Bong Eun Lee Jae Hoon Cheong Dong Uk Kim Hyun Young Woo Jeong Heo Geun Am Song 2010World Journal of Gastroenterology2010,16,36:24
2New magnifying endoscopic classification for superficial esophageal squamous cell carcinoma显示文摘AIM To assess the accuracy of a new magnifying endoscopy(ME)classification for predicting depth of invasion of superficial esophageal squamous cell carcinoma(SESCC).METHODS This study included a total of 70 lesions in 69 patients with SESCC who underwent ME with narrow-band imaging(ME-NBI)before resection from August 2010 to July 2016.Accuracy of ME-NBI for predicting depth of invasion of SESCC was analyzed by using a new ME classification proposed by the Japan Esophageal Society(JES),and interobserver agreement was assessed.RESULTS Overall accuracy of ME-NBI for estimating depth of invasion of SESCC was 78.6%.Sensitivity and specificity of type B1 for tumors limited to the epithelial layer(m1)or invading into the lamina propria(m2)were 71.4%and 100%,respectively.Sensitivity and specificity of type B2 for tumors invading into the muscularis mucosa(m3)or superficial submucosa(≤200μm,sm1)were94.4%and 73.1%,respectively,while those of type B3for tumors invading into the deep submucosa(>200μm,sm2)were 75.0%and 97.8%,respectively.Interobserver agreement was excellent(κ=0.86,95%CI:0.76-0.95).CONCLUSION The recently developed JES ME classification is useful for predicting depth of invasion of SESCC,with reliable interobserver agreement.Su Jin Kim Gwang Ha Kim Moon Won Lee Hye Kyung Jeon Dong Hoon Baek Bong Eun Lee Geun Am Song 2017World Journal of Gastroenterology2017,23,24:13
3Is it possible to differentiate gastric GISTs from gastric leiomyomas by EUS?显示文摘AIM: To evaluate the ultrasonog raphy (EUS) features of gastric gastrointestinal stromal tumors (GISTs) as compared with gastric leiomyomas and then to determine the EUS features that could predict malignant GISTs.METHODS: We evaluated the endoscopic EUS features in 53 patients with gastric mesenchymal tumors conf irmed by histopathologic diagnosis. The GISTs were classif ied into benign and malignant groups according to the histological risk classif ication.RESULTS: Immunohistochemical analyses demon-strated 7 leiomyomas and 46 GISTs. Inhomogenicity, hyperechogenic spots, a marginal halo and higher echogenicity as compared with the surrounding muscle layer appeared more frequently in the GISTs than in the leiomyomas (P < 0.05). The presence of at least two of these four features had a sensitivity of 89.1% and a specifi city of 85.7% for predicting GISTs. Except for tumor size and irregularity of the border, most of the EUS features were not helpful for predicting the malignant potential of GISTs. On multivariate analysis, only the maximal diameter of the GISTs was an independent predictor. The optimal size for predicting malignant GISTs was 35 mm. The sensitivity and specificity using this value were 92.3% and 78.8%, respectively.CONCLUSION: EUS may help to differentiate gastric GISTs from gastric leiomyomas. Once GISTs are suspected, surgery should be considered if the size is greater than 3.5 cm.Gwang Ha Kim Do Youn Park Suk Kim Dae Hwan Kim Dong Heon Kim Cheol Woong Choi Jeong Heo Geun Am Song 2009World Journal of Gastroenterology2009,15,27:12
4Self-expandable metallic stents for palliation of patients with malignant gastric outlet obstruction caused by stomach cancer显示文摘AIM: To ascertain clinical outcome and complications of self-expandable metal stents for endoscopic palliation of patients with malignant obstruction of the gastrointestinal (GI) tract. METHODS: A retrospective review was performed throughout August 2000 to June 2005 of 53 patients with gastric outlet obstruction caused by stomach cancer. All patients had symptomatic obstruction including nausea, vomiting, and decreased oral intake. All received self-expandable metallic stents. RESULTS: Stent implantation was successful in all 53 (100%) patients. Relief of obstructive symptoms was achieved in 43 (81.1%) patients. No immediate stent-related complications were noted. Seventeen patients had recurrent obstruction (tumor ingrowth in 14 patients, tumor overgrowth in 1 patient, and partial distal stent migration in 2 patients). The mean survival was 145 d. Median stent patency time was 187 d. CONCLUSION: Endoscopic placement of self-expandable metallic stents is a safe and effective treatment for the palliation of patients with inoperable malignant gastric outlet obstruction caused by stomach cancer.Tae Oh Kim Dae Hwan Kang Gwang Ha Kim Jeong Heo Geun Am Song Mong Cho Dong Heon Kim Mun Sup Sim 2007World Journal of Gastroenterology2007,13,6:11
5Associated factors for a hyperechogenic pancreas on endoscopic ultrasound显示文摘AIM: To identify the associated risk factors for hyperechogenic pancreas (HP) which may be observed on endoscopic ultrasound (EUS) and to assess the relationship between HP and obesity. METHODS: From January 2007 to December 2007, we prospectively enrolled 524 consecutive adults who were scheduled to undergo EUS. Patients with a history of pancreatic disease or with hepatobiliary or advanced gastrointestinal cancer were excluded. Finally,284 patients were included in the analyses. We further analyzed the risk of HP according to the categories of visceral adipose tissue (VAT) and subcutaneous adipose tissue in 132 patients who underwent abdominal computed tomography scans. RESULTS: On univariate analysis, age older than 60 years, obesity (body mass index > 25 kg/m 2 ), fatty liver, diabetes mellitus, hypertension and hypercholesterolemia were identified as risk factors associated with HP (P < 0.05). On multivariate analysis, fatty liver [P = 0.008, odds ratio (OR) = 2.219], male gender (P = 0.013, OR = 2.636), age older than 60 years (P = 0.001, OR = 2.874) and hypertension (P = 0.044, OR = 2.037) were significantly associated with HP. In the subgroup analysis, VAT was a statistically significant risk factor for HP (P = 0.010, OR = 5.665, lowest quartile vs highest quartile). CONCLUSION: HP observed on EUS was associated with fatty liver, male gender, age older than 60 years, hypertension and VAT.Cheol Woong Choi Gwang Ha Kim Dae Hwan Kang Hyung Wook Kim Dong Uk Kim Jeong Heo Geun Am Song Do Youn Park Suk Kim 2010World Journal of Gastroenterology2010,16,34:8
6Long-term outcomes of endoscopic submucosal dissection for early gastric cancer: a single-center experience显示文摘Mun Ki Choi Gwang Ha Kim Do Youn Park Geun Am Song Dong Uk Kim Dong Yup Ryu Bong Eun Lee Jae Hoon Cheong Mong Cho 2013Surgical Endoscopy2013,,11:6
7Significant risk and associated factors of active tuberculosis infection in Korean patients with inflammatory bowel disease using anti-TNF agents显示文摘AIM:To evaluate the incidence and risk factors of Korean tuberculosis(TB) infection in patients with inflammatory bowel disease(IBD) undergoing anti-TNF treatment.METHODS:The data of IBD patients treated with anti-TNFs in 13 tertiary referral hospitals located in the southeastern region of Korea were collected retrospectively.They failed to show response or were intolerant to conventional treatments,including steroids or immunomodulators.Screening measures for latent TB infection(LTBI)and the incidence and risk factors ofactive TB infection after treatment with anti-TNFs were identified.RESULTS:Overall,376 IBD patients treated with antiTNF agents were recruited(male 255,mean age of anti-TNF therapy 32.5±13.0 years);277 had Crohn’s disease,99 had ulcerative colitis,294 used infliximab,and 82 used adalimumab.Before anti-TNF treatment,screening tests for LTBI including an interferon gamma release assay or a tuberculin skin test were performed in 82.2%of patients.Thirty patients(8%)had LTBI.Sixteen cases of active TB infection including one TB-related mortality occurred during 801 personyears(PY)follow-up(1997.4 cases per 100000 PY)after anti-TNF treatment.LTBI(OR=5.76,95%CI:1.57-21.20,P=0.008)and WBC count<5000 mm3(OR=4.5,95%CI:1.51-13.44,P=0.007)during follow-up were identified as independently associated risk factors.CONCLUSION:Anti-TNFs significantly increase the risk of TB infection in Korean patients with IBD.The considerable burden of TB and marked immunosuppression might be attributed to this risk.Eun Soo Kim Geun Am Song Kwang Bum Cho Kyung Sik Park Kyeong Ok Kim Byung Ik Jang Eun Young Kim Seong Woo Jeon Hyun Seok Lee Chang Heon Yang Yong Kook Lee Dong Wook Lee Sung Kook Kim Tae Oh Kim Jonghun Lee Hyung Wook Kim Sam Ryong Jee Seun Ja Park Hyun Jin Kim 2015World Journal of Gastroenterology2015,21,11:5
8Magnifying endoscopy of gastric epithelial dysplasia based on the morphologic characteristics显示文摘AIM:To investigate the difference in magnifying endoscopic findings of gastric epithelial dysplasias(GEDs)according to the morphologic characteristics.METHODS:This study included 46 GED lesions in 45patients who underwent magnifying endoscopy using narrow band imaging(ME-NBI)before endoscopic resection.During ME-NBI,the microvascular and microsurface(MS)patterns and the presence of light blue crest(LBC)and white opaque substance were investigated.GEDs were categorized as adenomatous,foveolar,and hybrid types,and their mucin phenotype was evaluated.RESULTS:Of the 46 lesions,27(59%)were categorized as adenomatous,15(32%)as hybrid,and the remaining 4(9%)as foveolar.All adenomatous GEDs showed the round pit and/or tubular MS patterns,all foveolar GEDs showed the papillary pattern,and hybrid GEDs showed mixed patterns(P<0.001).LBC was more frequently observed in adenomatous GEDs than in hybrid or foveolar GEDs(52%,33%,0%,respectively),although this difference was not significant(P=0.127).The papillary MS pattern was associated with MUC5AC and MUC6 expression,and the round pit and/or tubular MS patterns were associated with CD10expression.CONCLUSION:The MS pattern in ME-NBI findings is useful for predicting the morphologic category and mucin phenotype of GEDs,and ME-NBI findings may guide decisions regarding GED treatment.Hwa Mi Kang Gwang Ha Kim Do Youn Park Hong Ryeol Cheong Dong Hoon Baek Bong Eun Lee Geun Am Song 2014World Journal of Gastroenterology2014,20,42:4
9Is ineffective esophageal motility associated with gastropharyngeal reflux disease?显示文摘AIM: To evaluate the association between ineffective esophageal motility (IEM) and gastropharyngeal reflux disease (GPRD) in patients who underwent ambulatory 24-h dual-probe pH monitoring for the evaluation of supraesophageal symptoms. METHODS: A total of 632 patients who underwent endoscopy,esophageal manometry and ambulatory 24-h dual-pH monitoring due to supraesophageal symptoms (e.g. globus,hoarseness,or cough) were enrolled. Of them,we selected the patients who had normal esophageal motility and IEM. The endoscopy and ambulatory pH monitoring findings were compared between the two groups. RESULTS: A total of 264 patients with normal esophageal motility and 195 patients with the diagnosis of IEM were included in this study. There was no difference in the frequency of reflux esophagitis and hiatal hernia between the two groups. All the variables showing gastroesophageal reflux and gastropharyngeal reflux were not different between the two groups. The frequency of GERD and GPRD,as defined by ambulatory pH monitoring,was not different between the two groups. CONCLUSION: There was no association between IEM and GPRD as well as between IEM and GERD. IEM alone cannot be considered as a definitive marker for reflux disease.Kyung Yup Kim Gwang Ha Kim Dong Uk Kim Soo Geun Wang Byung Joo Lee Jin Choon Lee Do Youn Park Geun Am Song 2008World Journal of Gastroenterology2008,14,39:3
10Acute distal common bile duct angle is risk factor for postendoscopic retrograde cholangiopancreatography pancreatitis in beginner endoscopist显示文摘BACKGROUND Post-endoscopic retrograde cholangiopancreatography(ERCP)pancreatitis(PEP)is a critical and poorly managed complication of ERCP.Endoscopists need to understand the risk factors for PEP.However,the majority of studies investigating ERCP-related risk factors have included well-trained endoscopists,with the issue of endoscopist experience on PEP incidence not having been systematically evaluated.AIM To explore the risk factors for PEP in beginner endoscopists without supervision.METHODS We performed a retrospective analysis of 293 patients,with naïve papilla and no history of pancreatitis,treated using bile duct cannulation.Patients were classified according to the endoscopist’s experience(beginner vs expert).The angle of the distal common bile duct(CBD)was measured as the angle between the lower wall of the bile duct and a vertical line extending to the lower wall of the bile duct on coronal view computed tomography.RESULTS After propensity matching,there were no differences between patients treated by the expert and beginner endoscopist with regard to age,sex,mean bile duct dilatation,and ratio of benign disease.The distal CBD angle was classified as acute(>30º)or obtuse(≤30º),based on the mean angle of 29.9ºfor the group.An acute distal CBD angle was a significant risk factor for PEP for beginner(P=0.049),but not expert.CONCLUSION For beginner endoscopists first performing unsupervised ERCP,cases with an obtuse distal CBD angle may be more appropriate to lower the risk of PEP.Sung Yong Han Dong Uk Kim Moon Won Lee Young Joo Park Dong Hoon Baek Gwang Ha Kim Geun Am Song 2020World Journal of Clinical Cases2020,8,1:3
11The two faces of capsaicin 显示文摘Bode AM Dong Z 2011Cancer research2011,71,8:1
12Characterization of human immunodeficiency virus type 1 replication in immature and mature dendritic cells reveals dissociable cis-and trans-infection显示文摘Dong C Janas AM Wang JH 2007J Virol2007,81,11:1
13Cancer prevention by food factors through targeting signal transduction pathways显示文摘Bode AM Dong Z 2004Nutrition2004,20,1:1
14A Novel Polymer Nanocomposite: Polystyrene-layered Methylbenzamidephenylsilica显示文摘Yao K Wei Z Dong AM 2009Macromole?cules2009,42,22:1
15Post - translational modification of p53 in tumorigenesis显示文摘Bode AM Dong Z 2004Nature Reviews2004,4,:1
16Signal transduction pathways:Targets for green and black tea polyphenols 显示文摘Park AM Dong Z 2003J Biochem Mol Biol2003,36,1:1
17Endosonographic features of esophageal granular cell tumors using a high-frequency catheter probe显示文摘Dong Uk Kim Gwang Ha Kim Dong Yup Ryu Dong Gun Lee Jae Hoon Cheong Bong Eun Lee Geun Am Song Do Youn Park Na Ri Shin Hoseok I Mitsuhiro Kida 2011Scandinavian Journal of Gastroenterology2011,,2:1
18The paradox of arsenic: molecular mechanisms of cell transformation and chemotherapeutic effects 显示文摘Bode AM Dong Z 2002Crit Rev Oncnl Hematol2002,42,:1
19The Anopheles innate immune system in the defense against malaria infection 显示文摘Clayton AM Dong Y Dimopoulos G 2014J Innate Immun2014,6,2:1
20Use of endotracheal tube elec- trodes in treating glossopharyngeal neuralgia : technical note 显示文摘Harries AM Dong CCJ Honey CR 2012Stereotact Funct Neurosurg2012,90,:1
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