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Comparison of brush and basket cytology in differential diagnosis of bile duct stricture at endoscopic retrograde cholangiopancreatography

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Hepatobiliary & Pancreatic Diseases International 2014年第6期13卷 622-627页

作者： Ki Bae Bang Hong Joo Kim Jung Ho park dong il park Yong Kyun Cho Chong il Sohn Woo Kyu Jeon Byung Ik Kim Department of Internal Medicine Sungkyunkwan University Kangbuk Samsung Hospital 108 Pyung-Dong Jongro-Ku Seoul 110-746 Korea

BACKGROUND： A previous report has identified a significantly higher sensitivity of cancer detection for dedicated grasping basket than brushing at endoscopic retrograde cholangiopancreato- graphy （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, ***： 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.

关键词： bile duct stricture cholangiocarcinoma brush cytology basket cytology

Epidermal growth factor upregulates Skp2/Cks1 and p27^(kip1) in human extrahepatic cholangiocarcinoma cells

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World Journal of Gastroenterology 2014年第3期20卷 755-773页

作者： 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 Kangbuk Samsung Medical Research Institute Sungkyunkwan University Kangbuk Samsung Hospital Department of Internal Medicine Sungkyunkwan University Kangbuk Samsung Hospital Department of Pathology Sungkyunkwan University Kangbuk Samsung Hospital

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 ***:Seventy-six patients who underwent curative resection for histologically confirmed extrahepatic cholangiocarcinoma at our institution from December1994 to March 2008 were *** staining for Skp2,Cks1,p27kip1,and Ki67,along with other relevant molecular biologic experiments,were ***: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 *** 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 *** protein levels of Skp2/Cks1(from nuclear lysates)and p27kip1(from cytosolic lysate)were also significantly increased in these *** were significant reductions in the protein levels of Skp2/Cks1and p27kip1(from nuclear lysate)after the treatment of *** chromatin immunoprecipitation assay,we found that E2F1 transcription factor directly binds to the promoter site of ***:Higher immunostaining intensity of Skp2/Cks1 was an independent prognostic factor for patients with extrahepatic *** 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.

关键词： S-phase kinase-associated protein 2 Cyclindependent kinases regulatory subunit 1 P27kip1 Cholangiocarcinoma E2F1 PI3K/Akt

Extracolonic findings of computed tomographic colonography in Koreans

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World Journal of Gastroenterology 2009年第12期15卷 1487-1492页

作者： Sung Keun park dong il park Sun-Young Lee Sang Kil Lee Young-Ho Kim Soon Jin Lee Jeong-Sik Byeon Kyu Chan Huh Ki-Nam Shim Department of Medicine Sungkyunkwan University School of MedicineKangbuk Samsung Hospital 108Pyung-dongJongro-guSeoul 110-746South Korea Department of Internal Medicine Konkuk University School of MedicineSeoul 110-746South Korea Department of Internal Medicine Yonsei University College of MedicineSeoul 110-746South Korea Departments of Medicine Samsung Medical CenterSungkyunkwan University School of MedicineSeoul110-746South Korea Departments of Radiology Samsung Medical CenterSungkyunkwan University School of MedicineSeoul110-746South Korea Department of Internal Medicine Ulsan University College of MedicineAsan Medical CenterSeoul110-746South Korea Department of Internal Medicine Konyang University School of MedicineDaejon 302-718South Korea Department of Internal Medicine Ewha Womans University School of MedicineSeoul 110-746South Korea

AIM:To determine the frequency and characteristics of extracolonic lesions detected using computed tomographic(CT)***:The significance of extracolonic lesions was classified as high,intermediate,or *** records were reviewed to establish whether further investigations were carried out pertaining to the extracolonic lesions that were detected by CT ***:A total of 920 cases from 7 university hospitals were included,and 692 extracolonic findings were found in 532(57.8%)*** 692 extracolonic findings,60 lesions(8.7%)were highly significant,250(36.1%)were of intermediate significance,and 382(55.2%)were of low *** colonography revealed fewer extracolonic findings in subjects who were without symptoms(P<0.001),younger(P<0.001),or who underwent CT colonography with no contrast enhancement(P=0.005).CT colonography with contrast enhancement showed higher cost-effectiveness in detecting highly significant extracolonic lesions in older subjects and in subjects with ***:Most of the extracolonic findings detected using CT colonography were of less significant *** role of CT colonography would be optimized if this procedure was performed with contrast enhancement in symptomatic older subjects.

关键词： Computed tomographic colonography Extracolonic lesion Cost Contrast enhancement Clinical availability

Short health scale: A valid measure of health-related quality of life in Korean-speaking patients with inflammatory bowel disease

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World Journal of Gastroenterology 2017年第19期23卷 3530-3537页

作者： Soo-Kyung park Bong Min Ko Hyeon Jeong Goong Jeong Yeon Seo Sang Hyuk Lee Hae Lim Baek Moon Sung Lee dong il park Division of Gastroenterology Department of Internal Medicine Kangbuk Samsung HospitalSungkyunkwan University School of Medicine Digestive Disease Center and Research Institute Department of Internal Medicine Soonchunhyang University School of Medicine

AIM To evaluate the short health scale(SHS),a new,simple,four-part visual analogue scale questionnaire that is designed to assess the impact of inflammatory bowel disease(IBD)on health-related quality of life(HRQOL),in Korean-speaking patients with *** The SHS was completed by 256 patients with Crohn’s disease(CD)and ulcerative colitis(UC).Individual SHS items were correlated with inflammatory bowel disease questionnaire(IBDQ)dimensions and with disease activity to assess ***-retest reliability,responsiveness and patient or disease characteristics with probable association with high SHS scores were *** Of 256 patients with IBD,139(54.3%)had UC and 117(45.7%)had *** correlation coefficients between SHS questions about"symptom burden","activities of daily living",and"disease-related worry"and their corresponding dimensions in the IBDQ ranged from0.62 to 0.71,compared with correlation coefficients ranging from-0.45 to-0.61 for their non-corresponding *** was a stepwise increase in SHS scores,with increasing disease activity in both CD and UC(all P valuesility was confirmed with test-retest correlations ranging from 0.68 to 0.90(all P values<0.001).Responsiveness was confirmed with the patients who remained in *** SHS scores remained unchanged,except for the SHS dimension"disease-related worry".In the multivariate analysis,female sex was associated with worse"general well-being"(OR=2.28,95%CI:1.02-5.08)along with worse disease *** The SHS is a valid and reliable measure of HRQOL in Korean-speaking patients with IBD.

关键词： Quality of life Inflammatory bowel disease Ulcerative colitis Crohn's disease Disease activity

Pre-operative predictive factors for gallbladder cholesterol polyps using conventional diagnostic imaging

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World Journal of Gastroenterology 2008年第44期14卷 6831-6834页

作者： Ji-Hoon Choi Jung-Won Yun Yong-Sung Kim Eun-A Lee Sang-Tae Hwang Yong-Kyun Cho Hong-Joo Kim Jung-Ho park dong-il park Chong-il Sohn Woo-Kyu Jeon Byung-Ik Kim Hyoung-Ook Kim Jun-Ho Shin Department of Internal Medicine Kangbuk Samsung HospitalSungkyunkwan University School of MedicineSeoul 110-746South Korea Department of Surgery Kangbuk Samsung HospitalSungkyunkwan University School of MedicineSeoul 110-746South Korea

AIM： To determine the clinical data that might be useful for differentiating benign from malignant gallbladder （GB） polyps by comparing radiological methods, including abdominal ultrasonography （US） and computed tomography （CT） scanning, with postoperative pathology findings. METHODS： Fifty-nine patients underwent laparoscopic cholecystectomy for a GB polyp of around 10 ram. They were divided into two groups, one with cholesterol polyps and the other with non-cholesterol polyps. Clinical features such as gender, age, symptoms, size and number of polyps, the presence of a GB stone, the radiologically measured maximum diameter of the polyp by US and CT scanning, and the measurements of diameter from postoperative pathology were recorded for comparative analysis. RESULTS： Fifteen of the 41 cases with cholesterol polyps （36.6%） were detected with US but not CT scanning, whereas all 18 non-cholesterol polyps were observed using both methods. In the cholesterol polyp group, the maximum measured diameter of the polyp was smaller by CT scan than by ***, the discrepancy between those two scanning measurements was greater than for the non- cholesterol polyp group. CONCLUSION： The clinical signs indicative of a cholesterol polyp include：（1） a polyp observed by US but not observable by CT scanning, （2） a smaller diameter on the CT scan compared to US, and （3） a discrepancy in its maximum diameter between US and CT measurements. In addition, US and the CT scan had low accuracy in predicting the polyp diameter compared to that determined by postoperative pathology.

关键词： Cholesterol Polyps Gallbladder Computed tomography Ultrasonography

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World Journal of Gastroenterology 2008年第27期14卷 4359-4364页

作者： Young Hye Byun Jun Haeng Lee Moon Kyung park Ji Hyun Song Byung-Hoon Min dong Kyung Chang Young- Ho Kim Hee Jung Son Poong-Lyul Rhee Jae J Kim Jong Chul Rhee Ji Hye Hwang dong il park Sang Goon Shim In Kyung Sung Department of Medicine Sungkyunkwan University School of Medicine Samsung Medical Center Department of Physical Medicine and Rehabilitation Sungkyunkwan University School of Medicine Samsung Medical Center Department of Medicine Sungkyunkwan University School of Medicine Kangbuk Samsung Hospital Department of Medicine Sungkyunkwan University School of Medicine Masan Samsung Hospital Department of Internal Medicine Konkuk University College of Medicine

AIM: To determine the prevalence and risk factors of work-related musculoskeletal disorders in gastrointestinal endoscopists in Korea. METHODS: A survey of musculoskeletal symptoms, using a self-administered questionnaire, was conducted on 55 endoscopists practicing in general hospitals or health promotion centers. RESULTS: Forty-nine (89.1%) endoscopists reported musculoskeletal pain on at least one anatomic location and 37 (67.3%) endoscopists complained of pain at rest. Twenty-six (47.3%) endoscopists had severe musculoskeletal pain defined as a visual analogue score greater than 5.5. Factors related to the development of severe pain were (1) standing position during upper endoscopy, (2) specific posture/ habit during endoscopic procedures, and (3) multiple symptomatic areas. Finger pain was more common in beginners, whereas shoulder pain was more common in experienced endoscopists. Sixteen percent of symptomatic endoscopists have modified their practice or reduced the number of endoscopic examinations. Only a few symptomatic endoscopists had sought professional consultation with related specialists. CONCLUSION: The prevalence of musculoskeletal pain in endoscopists is very high. The location of pain was different between beginners and experienced endoscopists. Measures for the prevention and adequate management of endoscopy-related musculoskeletal symptoms are necessary.

关键词： Endoscopy Endoscopist Musculoskeletal symptom

Pyrometallurgical recycling of end-of-life lithium-ion batteries

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International Journal of Minerals,Metallurgy and Materials 2024年第7期31卷 1554-1571页

作者： Juheon Lee Kwang Won park il Sohn Sanghoon Lee Department of Materials Science and Engineering Seoul 03722Korea Yonsei Industry Cooperation Center Yonsei UniversitySeoul 03722Korea RD Solution Wanju gunJeollabuk do 55365Korea

The global importance of lithium-ion batteries(LIBs)has been increasingly underscored with the advancement of high-performance energy storage ***,the end-of-life of these batteries poses significant challenges from environmental,economic,and resource management *** review paper focuses on the pyrometallurgy-based recycling process of lithium-ion batteries,exploring the fundamental understanding of this process and the importance of its *** on the high energy consumption and emission gas issues of the pyrometallurgical recycling process,we systematically analyzed the capital-intensive nature of this process and the resulting technological ***,we conducted an in-depth discussion on the future research directions to overcome the existing technological barriers and *** review will provide valuable insights for researchers and industry stakeholders in the battery recycling field.

关键词： spent lithium-ion batteries recycling sustainability lithium valuable metal

Comparison of postpolypectomy bleeding between epinephrine and saline submucosal injection for large colon polyps by conventional polypectomy:A prospective randomized,multicenter study

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World Journal of Gastroenterology 2007年第21期13卷 2973-2977页

作者： Suck-Ho Lee il-Kwun Chung Sun-Joo Kim Jin-Oh Kim Bong-Min Ko Won-Ho Kim Hyun-Soo Kim dong-il park Hyo-Jong Kim Jeong-Sik Byeon Suk-Kyun Yang Byeong Ik Jang Sung-Ae Jung Yoon-Tae Jeen Jai-Hyun Choi Hwang Choi dong-Soo Han Jae Suk Song Department of Internal Medicine University of Soonchunhyang at CheonanCheonan & Seoul & BucheonRepublic of Korea Department of Internal Medicine University of Yonsei at SeoulSeoul & WonjuRepublic of Korea Department of Internal Medicine University of Sungkyunkwan at SeoulSeoulRepublic of Korea Department of Internal Medicine University of Kyunghee at SeoulSeoulRepublic of Korea Department of Internal Medicine University of Ulsan at SeoulSeoulRepublic of Korea Department of Internal Medicine University of Youngnam at TaeguTaeguRepublic of Korea Department of Internal Medicine University of Ewha at SeoulSeoulRepublic of Korea Department of Internal Medicine University of Korea at SeoulSeoul & AnsanRepublic of Korea Department of Internal Medicine University of Catholic at BucheonBucheonRepublic of Korea Department of Internal Medicine University of Hanyang at KuriKuriRepublic of Korea Department of Preventive Medicine University of KwandongKangneungRepublic of Korea

AIM:To evaluate and compare the clinical outcomes of prophylactic submucosal saline-epinephrine injection and saline injection alone for large colon polyps by conventional polypectomy. METHODS:A prospective study was conducted from July 2003 to July 2004 at 11 tertiary endoscopic centers. Large colon polyps (> 10 mm in diameter) wererandomized to undergo endoscopic polypectomy with submucosal saline-epinephrine injection (epinephrine group) or normal saline injection (saline group). Endoscopic polypectomy was performed by the conventional snare method,and early ( 2 cm) and neoplastic polyps were independently and significantly associated with the presence of PPB. CONCLUSION:The prophylactic submucosal injection of diluted epinephrine does not appear to provide an additional advantage over the saline injection alone for the prevention of PPB.

关键词： Colonoscopic polypectomy Bleeding submucosal injection Saline Epinephrine

Net Effect of Short-Term Smoking Cessation on Mental Health Changes:Inverse Probability of Treatment Weighting and Difference-in-Differences Method

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International Journal of Mental Health Promotion 2024年第9期26卷 745-755页

作者： Ji-Su park Tae-Hyeon Lee il-Su park Busan Eastern Branch of Korea Association of Health Promotion Busan47734Republic of Korea Department of Biomedical Health Science Graduate SchoolDong-Eui UniversityBusan47340Republic of Korea Department of Healthcare Management Dong-Eui UniversityBusan47340Republic of Korea

Background:In response to the need for research clearly demonstrating the net effect of smoking cessation on mental health status,considering the causal relationship between smoking cessation and changes in mental health status,this study was ***,this study aimed to examine the net effect of short-term smoking cessation on five specific mental health metrics and the overall mental health status ***:We used data from the first wave of the Korean Health Panel(KHP)Survey(2011–2013,2016–2018)and focused on men aged 19 years and older,to explore the effects of smoking *** compared mental health status before and after cessation among current non-smokers who had quit smoking and continuous *** ensured homogeneity between the two groups via inverse probability of treatment weighting(IPTW)and employed a difference-in-differences(DID)analysis to assess changes in mental health *** study controlled for factors that could influence mental health and explored the net effect of short-term smoking cessation through difference-in-differences model using multiple regression ***:The results showed that short-term smoking cessation significantly alleviated mental and physical stress(p<0.1),reduced experiences of frustration(p<0.01),and improved the overall mental health status score(p<0.1).Conclusion:Thus,these results highlight a meaningful link between positive health behavior changes,such as smoking cessation,and enhanced mental ***,the application of temporal variables further improved the understanding of the causal relationship between health behaviors and mental health.

关键词： Smoking cessation mental health Korea health panel survey BEPSI-K IPTW DID