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| 1 | Intraoperative radiofrequency ablation with or without tumorectomy for hepatocellular carcinoma in locations difficult for a percutaneous approach显示文摘BACKGROUND:Although hepatic resection is widely accepted as a proper modality for treating hepatocellular carcinoma(HCC),a majority of patients are unable to undergo surgical resection due to various tumor and patient factors.Radiofrequency ablation(RFA)has mostly been used as a therapeutic alternative to resection for treating HCC.The objective of this study was to evaluate the results of intraoperative RFA for HCCs in locations difficult for a percutaneous approach.METHODS:Eight patients(male,seven;age,49-67 years) with 8 HCCs in difficult locations were treated by intraoperative RFA.Six of the patients had local tumor progression after initial transarterial chemoembolization or ultrasound(US)guided percutaneous RFA.The locations of the tumors were hepatic dome in six patients,posterior subcapsule in one,and caudate lobe in one.The tumor size was 2.0 to 6.4 cm(mean,3.9 cm).Intraoperative RFA was performed at the tumor itself and an anticipated resection line under US guidance with 3 cm monopolar single or clustered internally cooled electrodes.Tumor resection was performed in six patients.One month later,treatment response was assessed by contrast material-enhanced computed tomography(CT).CT studies were performed every 2 or 3 months after RFA.RESULTS:RFA was technically successful in all tumors,and the contrast-enhanced CT images acquired one month later showed complete disappearance of tumor enhancement.One pneumothorax occurred.After a median follow-up of 18 months(range,6-30 months),no tumors showed local progression.During the follow-up period,four new recurrent tumors were observed in three patients.Four patients were alive at the time of this report and the other four died of hepatorenal syndrome,liver failure,and progression of new recurrent tumors.CONCLUSION:Intraoperative RFA with tumor resection can be an alterative treatment option for HCC in locations difficult for a percutaneous approach. | Hyung Ook Kim Seung Kwon Kim Byung Ho Son Chang Hak Yoo Hyun Pyo Hong Yong Kyun Cho Byung Ik Kim | 2009 | Hepatobiliary & Pancreatic Diseases International2009，8，6： | 9 |
| 2 | Clinicopathologic factors influencing the accuracy of EUS for superficial esophageal carcinoma显示文摘AIM:To identify clinicopathologic factors influencing the accuracy of a high-frequency catheter probe endoscopic ultrasonography(EUS)for superficial esophageal carcinomas(SECs).METHODS:A total of 126 patients with endoscopically suspected SEC,who underwent EUS and curative treatment at Pusan National University Hospital during2005-2013,were enrolled.We reviewed the medical records of the 126 patients and compared EUS findings with histopathologic results according to clinicopathologic factors.RESULTS:A total of 114 lesions in 113 patients were included in the final analysis.The EUS assessment of tumor invasion depth was accurate in 78.9%(90/114)patients.Accuracy did not differ according to histologic type,tumor differentiation,tumor location,or macroscopic shape.However,accuracy significantly decreased for tumors≥3 cm in size(P=0.002).Overestimation and underestimation of the invasion depth occurred for 11(9.6%)and 13 lesions(11.4%),respectively.In multivariate analyses,tumor size≥3 cm was the only factor significantly associated with EUS accuracy(P=0.031),and was specifically associated with the underestimation of invasion depth.CONCLUSION:EUS using a high-frequency catheter probe generally provides highly accurate assessments of SEC invasion depth,but its accuracy decreases for tumors≥3 cm. | Jung Im Jung Gwang Ha Kim Hoseok I Do Youn Park Tae Kyun Kim Young Hwa Cho Yong Wan Sung Mun Ki Choi Bong Eun Lee Geun Am Song | 2014 | World Journal of Gastroenterology2014，20，20： | 9 |
| 3 | Outcome of laparoscopic cholecystectomy is not influenced by chronological age in the elderly显示文摘AIM:To evaluate the outcome of laparoscopic cholecystectomy(LC)in patients aged 80 years and older. METHODS:A total of 353 patients aged 65 to 79 years(group 1)and 35 patients aged 80 years and older(group 2)underwent LC.Patients were further classified into two other groups:those with uncomplicated gallbladder disease(group A)or those with complicated gallbladder disease(group B). RESULTS:There were no significant differences between the age groups(groups 1 and 2)with respect to clinical characteristics such as age,gender,comorbid disease,or disease presentation.Mean operative time,conversion rate,and the incidence of major postoperative complications were similar in groups 1 and 2.However,the percentage of high-risk patients was significantly higher in group 2 than in group 1 (20.0%vs 5.7%,P<0.01).Group A comprised 322 patients with a mean age of 71.0±5.3 years,and group B comprised 51 patients with a mean age of 69.9±4.8 years.In group B,mean operative time (78.4±49.3 min vs 58.3±35.8 min,P<0.01),mean postoperative hospital stay(7.9±6.5 d vs 5.0±3.7 d, P<0.01),and the incidence of major postoperative complications(9.8%vs 3.1%,P<0.05)were significantly greater than in group A.The conversion rate tended to be higher in group B,but this difference was not significant. CONCLUSION:Perioperative outcomes in elderly patients who underwent LC seem to be influenced by the severity of gallbladder disease,and not by chronologic age.In octogenarians,LC should be performed at an earlier,uncomplicated stage of the disease whenever possible to improve perioperative outcomes. | Hyung Ook Kim Jung Won Yun Jun Ho Shin Sang Il Hwang Yong Kyun Cho Byung Ho Son Chang Hak Yoo Yong Lai Park Hungdai Kim | 2009 | World Journal of Gastroenterology2009，15，6： | 5 |
| 4 | Comparison of brush and basket cytology in differential diagnosis of bile duct stricture at endoscopic retrograde cholangiopancreatography显示文摘BACKGROUND: A previous report has identified a significantly higher sensitivity of cancer detection for dedicated grasping basket than brushing at endoscopic retrograde cholangiopancreatography (ERCP). This study aimed to compare the diagnostic accuracy of Geenen brush and Dormia basket cytology in the differential diagnosis of bile duct stricture.METHOD: The current study enrolled one hundred and fourteen patients who underwent ERCP with both Geenen brush and Dormia basket cytology for the differential diagnosis of bile duct stricture at our institution between January 2008 and December 2012.RESULTS: We adopted sequential performances of cytologic samplings by using initial Geenen brush and subsequent Dormia basket cytology in 59 patients and initial Dormia basket and subsequent Geenen brush cytology in 55 patients.Presampling balloon dilatations and biliary stentings for the stricture were performed in 17 (14.9%) and 107 patients (93.9%),respectively. The sensitivity, specificity, positive predictive value,negative predictive value, and accuracy of Geenen brush cytology for the diagnosis of malignant bile duct stricture were 75.0%,100.0%, 100.0%, 66.7% and 83.3%, respectively, and those of Dormia basket cytology were 64.5%, 100.0%, 100.0%, 58.5% and 76.3%, respectively (P=0.347 and 0.827 for sensitivity and accuracy, respectively). The good and excellent cellular yields (≥ grade 2) were obtained by Geenen brush and Dormia basket cytology in 88 (77.2%) and 79 (69.3%) patients, respectively.CONCLUSION: The sensitivity, specificity and accuracy of biliary sampling with a Dormia basket are comparable to those with conventional Geenen brush cytology in the detection of malignant bile duct stricture. | Ki Bae Bang Hong Joo Kim Jung Ho Park Dong Il Park Yong Kyun Cho Chong Il Sohn Woo Kyu Jeon Byung Ik Kim | 2014 | Hepatobiliary & Pancreatic Diseases International2014，13，6： | 5 |
| 5 | Different risk factors for advanced colorectal neoplasm in young adults显示文摘AIM: To compare the risk of developing advanced colorectal neoplasm(ACRN) according to age in Koreans.METHODS: A total of 70428 Koreans from an occupational cohort who underwent a colonoscopy between 2003 and 2012 at Kangbuk Samsung Hospital were retrospectively selected. We evaluated and compared odds ratios(OR) for ACRN between the young-adults(YA < 50 years) and in the older-adults(OA ≥ 50 years). ACRN was defined as an adenoma ≥ 10 mm in diameter, adenoma with any component of villous histology, high-grade dysplasia, or invasive cancer.RESULTS: In the YA group, age(OR = 1.08, 95%CI: 1.06-1.09), male sex(OR = 1.26, 95%CI: 1.02-1.55), current smoking(OR = 1.37, 95%CI: 1.15-1.63), family history of colorectal cancer(OR = 1.46, 95%CI: 1.01-2.10), diabetes mellitus related factors(OR = 1.27, 95%CI: 1.06-1.54), obesity(OR = 1.23, 95%CI: 1.03-1.47), CEA(OR = 1.04, 95%CI: 1.01-1.09) and low-density lipoprotein-cholesterol(OR = 1.01, 95%CI: 1.01-1.02) were related with an increased risk of ACRN. However, age(OR = 1.08, 95%CI: 1.06-1.09), male sex(OR = 2.12, 95%CI: 1.68-2.68), current smoking(OR = 1.38, 95%CI: 1.12-1.71), obesity(OR = 1.34, 95%CI: 1.09-1.65) and CEA(OR = 1.05, 95%CI: 1.01-1.09) also increased the risk of ACRN in the OA group.CONCLUSION: The risks of ACRN differed based on age group. Different colonoscopic screening strategies are appropriate for particular subjects with risk factors for ACRN, even in subjects younger than 50 years. | Ji Yeon Kim Yoon Suk Jung Jung Ho Park Hong Joo Kim Yong Kyun Cho Chong Il Sohn Woo Kyu Jeon Byung Ik Kim Kyu Yong Choi Dong Il Park | 2016 | World Journal of Gastroenterology2016，22，13： | 5 |
| 6 | Metabolic syndrome is associated with erosive esophagitis显示文摘AIM: To clarify whether insulin resistance and metabolic syndrome are risk factors for erosive esophagitis. METHODS: A case-control study was performed using the database of the Kangbuk Samsung Hospital Medical Screening Center. RESULTS: A total of 1679 cases of erosive esophagitis and 3358 randomly selected controls were included. Metabolic syndrome was diagnosed in 21% of the cases and 12% of the controls (P < 0.001). Multiple logistic regressions confirmed the association between erosive esophagitis and metabolic syndrome (Odds ratio, 1.25; 95% CI, 1.04-1.49). Among the components of metabolic syndrome, increased waist circumference, elevated serum triglyceride levels and hypertension were significant risk factors for erosive esophagitis (all P < 0.01). Furthermore, increased insulin resistance (Odds ratio, 0.91; 95% CI, 0.85-0.98) and fatty liver, as diagnosed by ultrasonography (Odds ratio, 1.39; 95% CI, 1.20-1.60), were also related to erosive esophagitis even after adjustment for a series of confounding factors. CONCLUSION: Metabolic syndrome and increased insulin resistance are associated with an increased risk of developing erosive esophagitis. | Jung Ho Park Dong IL Park Hong Joo Kim Yong Kyun Cho Chong IL Sohn Woo Kyu Jeon Byung Ik Kim | 2008 | World Journal of Gastroenterology2008，14，35： | 5 |
| 7 | Epidermal growth factor upregulates Skp2/Cks1 and p27^(kip1) in human extrahepatic cholangiocarcinoma cells显示文摘AIM:To evaluate the expression status of S-phase kinase-associated protein 2(Skp2)/cyclin-dependent kinases regulatory subunit 1(Cks1)and p27kip1,and assess the prognostic significance of Skp2/Cks1 expression with p27kip1in patients with extrahepatic cholangiocarcinoma.METHODS:Seventy-six patients who underwent curative resection for histologically confirmed extrahepatic cholangiocarcinoma at our institution from December1994 to March 2008 were enrolled.Immunohistochemical staining for Skp2,Cks1,p27kip1,and Ki67,along with other relevant molecular biologic experiments,were performed.RESULTS:By Cox regression analyses,advanced age(>65 years),advanced AJCC tumor stage,poorly differentiated histology,and higher immunostaining intensity of Skp2 were identified as independent prognostic factors in patients with extrahepatic cholangiocarcinoma.Exogenous epidermal growth factor(EGF,especially 0.1-10 ng/mL)significantly increased the proliferation indices by MTT assay and the mRNA levels of Skp2/Cks1 and p27kip1in SNU-1196,SNU-1079,and SNU-245 cells.The protein levels of Skp2/Cks1(from nuclear lysates)and p27kip1(from cytosolic lysate)were also significantly increased in these cells.There were significant reductions in the protein levels of Skp2/Cks1and p27kip1(from nuclear lysate)after the treatment of LY294002.By chromatin immunoprecipitation assay,we found that E2F1 transcription factor directly binds to the promoter site of Skp2.CONCLUSION:Higher immunostaining intensity of Skp2/Cks1 was an independent prognostic factor for patients with extrahepatic cholangiocarcinoma.EGF upregulates the mRNA and protein levels of Skp2/Cks1and p27kip1via the PI3K/Akt pathway and direct binding of E2F1 transcription factor with the Skp2 promoter. | Ja-yeon Kim Hong Joo Kim Jung Ho Park Dong Il Park Yong Kyun Cho Chong Il Sohn Woo Kyu Jeon Byung Ik Kim Dong Hoon Kim Seoung Wan Chae Jin Hee Sohn | 2014 | World Journal of Gastroenterology2014，20，3： | 4 |
| 8 | New botanical drug, HL tablet, reduces hepatic fat as measured by magnetic resonance spectroscopy in patients with nonalcoholic fatty liver disease: A placebo-controlled, randomized, phase Ⅱ trial显示文摘AIM To evaluate the efficacy and safety of HL tablet extracted from magnolia officinalis for treating patients with nonalcoholic fatty liver disease(NAFLD).METHODS Seventy-four patients with NAFLD diagnosed by ultrasonography were randomly assigned to 3 groups given high dose(400 mg) HL tablet, low dose(133.4 mg) HL tablet and placebo, respectively, daily for 12 wk. The primary endpoint was post-treatment change of hepatic fat content(HFC) measured by magnetic resonance spectroscopy. Secondary endpoints included changes of serum aspartate aminotransferase, alanine aminotransferase(ALT), cholesterol, triglyceride, free fatty acid, homeostasis model assessment-estimated insulin resistance, and body mass index(BMI).RESULTS The mean HFC of the high dose HL group, but not of the low dose group, declined significantly after 12 wk of treatment(high dose vs placebo, P = 0.033; low dose vs placebo, P = 0.386). The mean changes of HFC from baseline at week 12 were-1.7% ± 3.1% in the high dose group(P = 0.018),-1.21% ± 4.97% in the low dose group(P = 0.254) and 0.61% ± 3.87% in the placebo group(relative changes compared to baseline, high dose were:-12.1% ± 23.5%, low dose:-3.2% ± 32.0%, and placebo: 7.6% ± 44.0%). Serum ALT levels also tended to decrease in the groups receiving HL tablet while other factors were unaffected. There were no moderate or severe treatment-related safety issues during the study.CONCLUSION HL tablet is effective in reducing HFC without any negative lipid profiles, BMI changes and adverse effects. | Jae Yoon Jeong Joo Hyun Sohn Yang Hyun Baek Yong Kyun Cho Yongsoo Kim Hyeonjin Kim | 2017 | World Journal of Gastroenterology2017，23，32： | 2 |
| 9 | Clinical usefulness of 18F-FDG PET-CT for patients with gallbladder cancer and cholangiocarcinoma显示文摘 | Seung Won Lee Hong Joo Kim Jung Ho Park Dong Il Park Yong Kyun Cho Chong Il Sohn Woo Kyu Jeon Byung Ik Kim | 2010 | Journal of Gastroenterology2010，，5： | 2 |
| 10 | Incremental Predictive Value of Red Cell Distribution Width for 12‐Month Clinical Outcome After Acute Myocardial Infarction显示文摘 | Jang Hoon Lee Dong Heon Yang Se Yong Jang Won Suk Choi Kyun Hee Kim Won Kee Lee Myung Hwan Bae Hun Sik Park Yongkeun Cho Shung Chull Chae | 2013 | Clin Cardiol2013，，6： | 2 |
| 11 | Nationwide seroepidemiology of hepatitis B virus infection in South Korea in 2009 emphasizes the coexistence of HBsAg and anti‐HBs显示文摘 | Byung Seok Lee Yong Kyun Cho Sook‐Hyang Jeong Joon Hyeok Lee Don Lee Neung Hwa Park Moran Ki | 2013 | Virol2013，，8： | 1 |
| 12 | Synthesis of 2-fluoroabscisic acid: A potential photo-stable abscisic acid显示文摘 | Bum Tae Kim Yong Ki Min Tadao Asami No Kyun Park Oh Young Kwon Kwang Yun Cho Shigeo Yoshida | 1997 | Tetrahedron Letters1997，，10： | 1 |
| 13 | Clinical Usefulness of Endoscopic Ultrasonography in the Differential Diagnosis of Gallbladder Wall Thickening显示文摘 | Hong Joo Kim Jung Ho Park Dong Il Park Yong Kyun Cho Chong Il Sohn Woo Kyu Jeon Byung Ik Kim Seon Hyeong Choi | 2012 | Digestive Diseases and Sciences2012，，2： | 1 |
| 14 | Clinical usefulness of 18F-FDG PET-CT for patients with gallbladder cancer and cholangiocarcinoma显示文摘 | Seung Won Lee Hong Joo Kim Jung Ho Park Dong Il Park Yong Kyun Cho Chong Il Sohn Woo Kyu Jeon Byung Ik Kim | 2010 | Journal of Gastroenterology2010，，5： | 1 |
| 15 | HER-2/neu Amplification Is an Independent Prognostic Factor in Gastric Cancer显示文摘 | Dong Il Park Jung Won Yun Jung Ho Park Suk Joong Oh Hong Joo Kim Yong Kyun Cho Chong Il Sohn Woo Kyu Jeon Byung Ik Kim Chang Hak Yoo Byung Ho Son Eun Yoon Cho Seoung Wan Chae Eo-Jin Kim Jin Hee Sohn Seung Ho Ryu Antonia R. Sepulveda | 2006 | Digestive Diseases and Sciences2006，，8： | 1 |
| 16 | HER-2/neu Amplification Is an Independent Prognostic Factor in Gastric Cancer显示文摘 | Dong Il Park Jung Won Yun Jung Ho Park Suk Joong Oh Hong Joo Kim Yong Kyun Cho Chong Il Sohn Woo Kyu Jeon Byung Ik Kim Chang Hak Yoo Byung Ho Son Eun Yoon Cho Seoung Wan Chae Eo-Jin Kim Jin Hee Sohn Seung Ho Ryu Antonia R. Sepulveda | 2006 | Digestive Diseases and Sciences2006，，8： | 1 |
| 17 | Closed suction drainage for deep neck infections显示文摘 | Sung Youl Hyun Hee Kyun Oh Jae Young Ryu Jin Joo Kim Jin Yong Cho Hyeon Min Kim | 2013 | Journal of Cranio-Maxillofacial Surgery2013，，： | 1 |
| 18 | HER-2 / neu Amplification Is an Independent Prognostic Factor in Gastric Cancer显示文摘 | Dong Il Park Jung Won Yun Jung Ho Park Suk Joong Oh Hong Joo Kim Yong Kyun Cho Chong Il Sohn Woo Kyu Jeon Byung Ik Kim Chang Hak Yoo Byung Ho Son Eun Yoon Cho Seoung Wan Chae Eo-Jin Kim Jin Hee Sohn Seung Ho Ryu Antonia R. Sepulveda | 2006 | Digestive Diseases and Sciences2006，，8： | 1 |
| 19 | Detection of colorectal adenomas by routine chromoendoscopy with indigocarmine显示文摘 | Jun Haeng Lee Jeong Wook Kim Yong Kyun Cho Chong Il Sohn Woo Kyu Jeon Byung Ik Kim Eun Yoon Cho | 2003 | The American Journal of Gastroenterology2003，，6： | 1 |
| 20 | Apolipoprotein B / AI ratio is independently associated with non‐alcoholic fatty liver disease in nondiabetic subjects显示文摘 | Young Gil Choe Wook Jin Yong Kyun Cho Won Gil Chung Hong Joo Kim Woo Kyu Jeon Byung Ik Kim | 2013 | J Gastroenterol Hepatol2013，，4： | 1 |
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