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백승운 ( Seung Woon Paik ) 대한소화기학회 2008 대한소화기학회지 Vol.51 No.6
Hepatitis C virus (HCV) is a major cause of chronic hepatitis and hepatic fibrosis worldwide. Up to 85% of individuals infected with HCV develop chronic infection, which can progress to cirrhosis and hepatocellular carcinoma. The primary goal in the treatment of HCV infection is to reduce the mortality by preventing liver-related deaths associated with the development of hepatocellular carcinoma and decompensated cirrhosis. Pegylated interferons together with ribavirin are currently the standard of care for patients with chronic hepatitis. Here, I discuss the goals of treatment, indication and treatment of chronic hepatitis C. (Korean J Gastroenterol 2008;51: 368-371)
만성 B형간염환자의 재발 방지 및 삶의 질 향상을 위한 시스템 다이내믹스 모델 개발
백승운 ( Seung Woon Paik ),최은옥 ( Eun Ok Choi ),김금순 ( Keum Soon Kim ),이명선 ( Myung Sun Yi ),곽상만 ( Sang Man Kwak ) 한국시스템다이내믹스학회 2006 한국시스템다이내믹스 연구 Vol.7 No.2
A conceptual system dynamics model is developed to represent the dynamic mechanism between the number of hepatitis B virus and the defense system of the body. The simulation results shows that the model behaves within the reasonable ranges. The developed conceptual model is a first attempt to quantify the dynamic mechanisms of the hepatitis B virus, where only feedback structures are considered without bio-organism data. The next step would be to incorporate the model with bio-organism theory and to carry out case studies to identify personal characteristics. Since the current model is a conceptual model where quantitative results are not based on the sound background, the usage is limited only within the qualitative basis. It could be a effective educational tool for the patients. It also shows what-to-do lists in order to be used for forecast purposes. * This study was funded by "the Korea Research Foundation Grant" (KRF-2004-042-E00147) in 2004.
고광철(Kwang Cheol Koh),백승운(Seung Woon Paik),이풍렬(Poong Lyul Rhee),김재준(Jae Jun Kim),이종철(Jong Chul Rhee),최규완(Kyoo Wan Choi),박상종(Sang Jong Park),김영호(Young Ho Kim),최상희(Sang Hee Choi),이순진(Soon Jin Lee),김지은(Je 대한내과학회 1999 대한내과학회지 Vol.57 No.3
N/A The purposes of this study were to assess the relationship between functional dyspepsia (FD) and the gastroptosis which was considered as one of the causes of FD by some physicians in Korea and to evaluate the possibility that gastroptosis was directly related to the relatively decreased abdominal fat content. Methods : 442 subjects taken upper gastrointestinal barium series (UGIS) for routine check-up were interviewed about symptoms of FD by physicians on the basis of Rome criteria. Various parameters of obesity were also collected from 366 subjects. Gastroptosis was diagnosed by radiologists when the gastric angle was located below the Jacobys line. Results : Gastroptosis was found in 23 (5.2%) of 442 subjects. Relationship between gastroptosis and FD was rejected statistically because 3 (5.8%) of 52 subjects with FD had gastroptosis but 20 (5.1%) of 390 subjects without FD also showed gastroptosis. Various parameters of obesity such as body mass index (20.6±2.6, 23.8±2.8), % body fat (23.4±6.1%, 28.2±6.6%), % ideal body weight (97.9±12.6%, 112.6±14.0%), waist to hip ratio (0.855±0.096, 0.900±0.070) and weight (53.5±8.2 kg, 62.5±9.6 kg) in subjects with and without FD showed that the gastroptosis was more frequent in subjects with low values in parameters of obesity. But on multivariate analysis, only body mass index was the independent factor related to gastroptosis. Conclusion : Gastroptosis is not a cause of FD but is thought to be a constitutional problem related to low values in parameters of obesity. (Korean J Med 57:298-303, 1999)
이준혁(Joon Hyoek Lee),백승운(Seung Woon Paik),심상군(Sang Goon Shim),류광현(Kwang Hyun Ryu),이풍렬(Poong Lyul Rhee),김재준(Jae Jun Kim),이종철(Jong Chul Rhee),최규완(Kyoo Wan Choi),이석호(Suk Ho Lee),이규택(Kyu Taek Lee),이종균(Jong 대한내과학회 1999 대한내과학회지 Vol.57 No.1
N/A Low-grade gastric MALT lymphoma arises from long-standing Helicobacter pylori(Hp) infection. High remission rates for these lymphoma have been observed after H. pylori eradication. There was debates on the optimal treatment of low-grade gastric MALT lymphoma. The purpose of this study is to investigate clinical and endoscopic characteristics of primary low-grade gastric MALT lymphoma and to assess short-term clinical outcome of various modalities of treatment. Methods : 30 patients(14 male, 16 female, mean age 44.9 years, range 26-76, mean follow-up 22.9 months) with primary low-grade gastric MALT lymphoma, diagnosed at the Samsung Medical Center from March 1995 to September 1998, were evaluated in a retrospective study. We evaluated patient's presenting symptoms, endoscopic finding, Hp status, staging by Musshoff system, and recurrence rate according to treatment mordalities. Results : The most common symptom is epigastric discomfort or pain(36.7%). Endoscopic appearances of gastric MALT lymphoma shows the wide variation from mucosal thickening to overt malignancy. The most common site of gastric MALT lymphoma is the gastric antrum and lower body(9 and 6 patients). Histologically, 70% were found to be Hp infected. Of 21 Hp(+) patients, 11 patients were clinical stage IE and received Hp eradication by PPI-based triple regimens. 81.8%(9/11) showed complete remission. Among 11 patients, 6 patients studied by PCR. After Hp eradication, 5 in 6 patients showed persistent IgH rearangement by PCR. The mean follow-up time is 22.8 months(range 3 to 36 months), One patient, who showed complete histologic regression during second endoscopy, relapsed MALT lymphoma after 6 months. The other one patient showed no change of lymphoma and underwent surgery. 12 patients underwent surgical treatment and showed no evidence of relapse. The mean follow-up time is 35.9 months. 2 patients received chemotherapy with CHOP regimen and showed complete remission. The mean follow-up time is 6.7 months. 2 patients received radiotherapy and showed no evidence of relapse. The mean follow-up time is 15 months. Conclusion ' Our study shows that complete remission rate after Hp eradication is as high as some studies recently reported. This suggest that Hp eradication may be considered as first-line therapy of low-grade gastric MALT lymphoma of stage IE.
이종철(Jong Chul Lee),백승운(Seung Woon Paik),김재준(Jae Jun Kim),고광철(Kwang Cheol Koh),고영혜(Young Hyeh Ko),이화영(Hwa Young Lee),김춘관(Choon Kwan Kim),이풍렬(Poong Lyul Rhee),오영륜(Young Lyun Oh) 대한소화기학회 1997 대한소화기학회지 Vol.30 No.5
Fascioliasis, infection of fasciola sp., is a zoonotic liver disease in human which usually involves the liver and biliary tract. Its occurrence is common in tropical area, western America and in the Mediterranean region, but relatively uncommon in Korea. Fascioliasis is usually presented as multiple small liver abscess and it is extremly uncommon as a single large liver mass. We experienced a case of facioliasis. In an asytnptomatic 43 year-old woman, appearing as a single, large hepatic mass. Imaging study suggested that the rnass is likely to be a hetnangioma, hepatoma or metastatic lesion. We carried out fine needle aspiration of the liver, and its cytology showed only some Fasciola sp. egg. Patients serology to the parasite wasnt available at that time, so we carried out partial hepatic lobectomy to confirm the diagnosis of fascioliasis. We found a parasite granuloma, mummified adult worm of fasciola sp. (Korean J Gastroenterol 1997; 30: 689-694)
만성 간질환 환자에 대한 고덱스 캅셀의 유효성.안정성에 관한 다기관, 무작위할당, 이중맹검 3상 비교임상시험
박문승,강주섭,전재윤,백승운,임규성,곽민정,전용철,이민호,Park, Moon-Seung,Kang, Ju-Seop,Chon, Chae-Yoon,Paik, Seung-Woon,Rim, Kyu-Sung,Kwak, Min-Jung,Jeon, Yong-Cheol,Lee, Min-Ho 대한임상약리학회 2001 臨床藥理學會誌 Vol.9 No.2
Background/Aims : Godex is a mixture of PMC(diphenyl-dimethyl-dicarboxylate) and Hepadif, each of which has been used for managing chronic liver disease in Korea and other countries. The purpose of this study was to evaluate the efficacy and safety of Godex in Korean patients with chronic liver disease. Methods : In this study, 154 patients with chronic hepatitis, who showed increased level of serum alanine aminotransferase(ALT), were randomly allocated into three groups. Fifty-two patients were administered 100mg/day of PMC, 48 patients were administered low dose of Godex(PMC 100mg+hepadif 600mg/day) and 53 patients were administered high dose of Godex(PMC 150mg+hepadif 900mg/day) orally for 8 weeks. To evaluate the efficacy and safety of Godex capsule, we considered primary variable as the proportion of patients who showed normal ALT blood level after treatment for 8 weeks and second variable as a proportion of patient who showed normal ALT at 4 weeks, the degree of difference of serum ALT level between 0 and 8 weeks, and incidence of adverse events during treatment period. Results : The percentage of subjects whose serum ALT levels decreased below upper normal level in control, low-dose and high-dose group were 64.54%, 67.35%, 81.13% after 8 weeks-treatment(p=0.0407) and 59.62%, 63.27%, 81.13% after 4 weeks-treatment of Godex(p=0.0790) using ITT analysis. There were no significant difference in incidence of adverse events among three groups. Conclusions : Response rate of high-dose group was significantly higher than those of low-dose group and control group. It is suggested that Godex 6 capsules per day(PMC 150mg+hepadif 900mg/day) is optimal dose for Korean patients with chronic liver disease who show elevated serum alanine aminotransferase(ALT) level.