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제5차 대한간학회 춘계학술대회 초록집 : 간경변증환자에서 급성 정맥류 출혈의 치료로써 Somatostatin과 Vasopressin의 효과에 대한 무작위 전향적인 비교연구
이헌영 ( Lee Heon Yeong ),이헌주 ( Lee Heon Ju ),이승민 ( Lee Seung Min ),이경태 ( Lee Gyeong Tae ),김준환 ( Kim Jun Hwan ),권순욱 ( Kwon Sun Ug ),이병석 ( Lee Byeong Seog ),김남재 ( Kim Nam Jae ) 대한간학회 1999 Clinical and Molecular Hepatology(대한간학회지) Vol.5 No.1(S)
간경변증 환자에서 급성 정맥류 출혈에 대한 치료로서 somatostatin 과 vasopressin 의 효과에 대한 무작위 전향적인 비교연구
이헌영(Heon Young Lee),이헌주(Heon Ju Lee),이승민(Seung Min Lee),김준환(Jun Hwan Kim),권순욱(Soon Wook Kweon),이병석(Byung Seok Lee),김남재(Nam Jae Kim) 대한내과학회 2002 대한내과학회지 Vol.62 No.5
Background: Acute variceal bleeding is one of serious complications of liver cirrhosis that has an attendant mortality of approximately 60% during two years and a variety of treatments like balloon tamponade, sclerotherapy and vasoactive drugs have been used. The aim of the present trial was to compare the effectiveness and complications of somatostatin and vasopressin in the treatment of acute variceal bleeding. Methods: Fourty-three cirrhotic patients with endoscopically proven acute variceal bleeding were included. Both drugs were given as continuous intravenous infusions for 48 hour. Twenty patients received somatostatin (250 mcg per hour after a bolus of 50 mcg) and twenty-three recieved vasopressin (0.4 units per min). Results: There was no significant difference between two groups in relation to age, sex and etiology of cirrhosis, Child-Pugh classification, characteristics of bleeding episode, laboratory findings before randomization and units of transfused blood during therapy. Rebleeding within 6 hour after beginning of therapy, that is failure of initial control of bleeding, was observed in 3 (13.0%)patients receiving vasopressin and in 1 (5.0%) of those treated with somatostatin (p>0.05). Five patients (25.0%) in the somatostatin group and 5 (21.7%) in the vasopressin group rebled during 5 days after initial therapy (p>0.05). The meaningful complications related with vasopressin were observed in 5 patients (chest pain or abdominal pain requiring nitroglycerin) but serious complications of somatostatin were not found. Mortalities during hospitalization were similar in both treatment groups. Two of the vasopressin group and one of the somatostatin group died because of the uncontrolled rebleeding and one of the vasopressin group died due to hepatic failure. Conclusion : This study shows that the effectiveness of somatostatin and vasopressin was not different but somatostatin had a lower risk of the complication than vasopressin.(Korean J Med 62:497-503, 2002)
HBsAg 양성 간경변증 환자에서 일시적인 혈중 alpha fetoprotein (α-FP) 상승의 간세포암종 발생에 대한 의의
이헌영 ( Lee Heon Yeong ),정재훈 ( Jeong Jae Hun ),강윤세 ( Kang Yun Se ),김연수 ( Kim Yeon Su ),문희석 ( Mun Hui Seog ),박기오 ( Park Gi O ),이엄석 ( Lee Eom Seog ),김선문 ( Kim Seon Mun ),서승원 ( Seo Seung Won ),이상우 ( Lee Sa 대한소화기학회 2004 대한소화기학회지 Vol.43 No.4
Background/Aims: Serum alpha fetoprotein (α-FP) measurement has a limitation to detect hepatocellular carcinoma (HCC) because it is elevated in various liver diseases. Therefore, we studied the sensitivity and specificity of high α-FP in the diagnosis of HCC. Methods: We studied 253 patients with HBsAg positive liver cirrhosis prospectively. We analyzed incidence of HCC related cut-off values of serum α-FP levels. During the follow-up period, we analyzed sensitivity and specificity of cut-off values of α-FP for the diagnosis of HCC, and α-FP elevation rate in relation to mass size. Results: One hundred and twenty-five patients had a transient elevation of α-FP levels above 20 ng/mL. The corresponding incidences of HCC were 27.2% (34/125) and 15.6% (20/128 patients without elevation of α-FP), respectively with a statistically significant difference (p=0.03). Among 54 patients with HCC, 18 patients (33.0%) had levels of α-FP below 20 ng/mL on the time of diagnosis of HCC. When we defined cut-off values of serum α-FP as 20, 100 and 500 ng/mL, the corresponding sensitivity and specificity for HCC were 62.9% and 24.0%, 7.4% and 54.2%, 77.3% and 91.9%, respectively. We studied sensitivity according to cut-off values of α-FP defined as 20, 100, 200, 500 ng/mL in patients with small HCC below 2 cm. The corresponding sensitivity were 50.0%, 43.7%, 25.0%, 18.7%, respectively. In patients with levels of serum α-FP below 20 ng/mL, percentages of mass size less than 2 cm, 2~3 cm, 3~5 cm and more than 5 cm were 50.0%, 25.0%, 28.5% and 25.0%, respectively. Conclusions: We suggested that in order to detect HCC, careful periodic monitoring with α-FP, ultrasonography and abdominal computed tomography is needed in patients with HBsAg positive liver cirrhosis and whose serum level of α-FP is above 20 ng/mL. (Korean J Gastroenterol 2004;43:252-259)
제5차 대한간학회 춘계학술대회 초록집 : 포스터 토의 순서 ; Salmonella typhi에 의한 급성 간염의 임상적 고찰: 급성 B형 바이러스 간염과의 비교분석
이경태 ( Lee Gyeong Tae ),양현웅 ( Yang Hyeon Ung ),서승원 ( Seo Seung Won ),성재규 ( Seong Jae Gyu ),이상우 ( Lee Sang U ),이승민 ( Lee Seung Min ),이병석 ( Lee Byeong Seog ),김남재 ( Kim Nam Jae ),이헌영 ( Lee Heon Yeong ) 대한간학회 1999 Clinical and Molecular Hepatology(대한간학회지) Vol.5 No.1(S)
u-City 구축사업의 지역경제적 파급효과에 관한 연구
이헌영(Heon-Yeong Lee),최예술(Yeseul Choi),임업(Up Lim) 한국IT서비스학회 2012 한국IT서비스학회지 Vol.11 No.4
In recent year, the u-City construction projects which integrate IT technology into urban infrastructures are being pushed forward by many local governments. These projects contain various purposes in an aspect of regional economy : to reinforce a competitiveness of region by increasing efficiency of urban managements and to revitalize regional economy by stimulating the regional high-tech industries that related to u-City construction. In this context, regional economic impact assessment of u-City construction projects is particularly important because, it give us information about effectiveness of u-City construction policy as a stimulus of regional high-tech industries and the policy feasibility of u-City construction projects that can be a base of public projects. However, it is challenging to assess the impact of u-City projects on regional economy properly due to a lack of understanding about industrial classification. and specific industrial inputs related to u-City construction. In this study, we suggest u-City industrial classifications, and specific-industrial inputs induced by u-City construction projects based on associated legislations. business report for a u-City construction, and results from previous studies. Using these classification and industrial input, we also investigate the regional economic impacts of a u-City construction project in Wha-sung and Dong-tan cities employing Input-output analysis. The empirical results suggests that u-City industries have. relatively high in production inducement, and value added inducement compared to input of other industrial sectors. These results indicate that regional economic impact of a Wha-sung and Dong-tan u-City construction project are relatively high, but economic impacts of u-City construction projects vary according to the regional industrial structure, and the specific expense accounts of u-City construction projects.
Gilbert 증후군에서 열량 제한 시험과Phenobarbital 자극 시험의 의의(14예)
이헌영 ( Lee Heon Yeong ),채경훈 ( Chae Gyeong Hun ),허원석 ( Heo Won Seog ),정재훈 ( Jeong Jae Hun ),강윤세 ( Kang Yun Se ),김연수 ( Kim Yeon Su ),문희석 ( Mun Hui Seog ),박기오 ( Park Gi O ),이엄석 ( Lee Eom Seog ),김선문 ( Kim 대한소화기학회 2003 대한소화기학회 추계학술대회 Vol.2003 No.-
<목적> Gilbert 증후군은 비진행성인 양성의 만성적 경과를 취하며, 경한 비 포합형 고 빌리루빈혈증이 특징인 일종의 체질적인 증상으로서 임상적인 중요성은 미약하지만 높은 빈도가 예상되는 점에 그 중요성이 부여되어야 할 것이다. 따라서 적정한 임상적 진단법으로 기왕에 소개된 열량제한 자극 시험과 phenobarbital 유도 시험을 시행하고 이들의 진단적 가치를 알아보기 위하여 본 연구를 시행하였다. <방법> 1990년 7월부터 1999년 4월까지
장외파생상품 중앙청산기구(Central Counterparty, “CCP”) 도입에 따른 법적 과제
이헌영(Heon-Young Lee) 한국기업법학회 2014 企業法硏究 Vol.28 No.2
2008년 서브프라임 및 리먼브라더즈 사태 등으로 인한 금융위기 이후 장외파생거래 등의 결제불이행 위험을 축소하기 위한 움직임이 본격화되어 2009년 9월 G20 피츠버그 정상회의에서 장외파생상품의 중앙청산기구를 통한 결제제도 도입의 합의가 있었다. 이에 따라 우리나라에서도 2012년말까지 중앙청산기구를 도입키로 하였으나 입법일정이 늦어지면서 2013년 3월에야 관련법이 국회를 통과하고 같은 해 9월에야 한국거래소가 국내 최초로 장외파생상품에 대한 금융투자상품거래청산회사(“청산소”)로 인가를 받았으며, 2014년 6월 30일부터 원화이자율스왑거래에 대한 의무청산이 시작된다. 그동안 전 세계적으로 매우 정교한 법적체계 하에 이루어지던 장외파생거래를 청산소를 통한 의무청산으로 변경하는 작업은 매우 다사다난한 작업이며, 따라서 과거 중앙청산기구 추진 시 발표되었던 청산규정안과 현재 확정된 청산규정을 중심으로 향후 장외파생상품의 청산소를 통한 청산을 원활히 하기 위한 과제들을 살펴보았다. 우선 청산대상거래의 범위를 확실히 하기 위해 의무청산의 대상이 되는 ‘금융투자업자’의 범위를 명확히 하는 방향으로 자본시장법의 관련 조항을 개정할 필요가 있다. 한편 일괄청산 상계 의견서가 긍정적으로 나올 수 있도록 한국거래소가 청산소의 거래인수 방식을 처음 추진하였던 채무인수 방식에서 계약인수의 방식으로 수정한 것은 긍정적이나 이를 보다 명확히 하기 위해 채무자 회생 및 파산에 관한 법률 제120조 제2항을 개정할 필요가 있다. 또한, 청산위탁계약과 관련해서는 그 법적형태 및 청산위탁자와 청산회원간 권리?의무의 내용에 대해 보다 명확히 규정할 필요성가 있으며, 청산위탁증거금의 확실한 보호를 위해서는 하루빨리 자본시장법령에 관련 내용을 추가하도록 하여야 할 것이다. After the crisis from sub-prime mortgage and the bankruptcy of Lehman-Brothers Group., G20 decided to impose restrictions on OTC derivatives market. One of such restrictions is the mandatory clearing of OTC derivative transactions through Central Counterparty(“CCP”). At fisrt, G20 planned to start CCP clearing from the end of 2012 but, due to the complex issues, each countries postponed the schedule. In case of Korea, the relevant law (i.e. the revision of Financial Investment Services and Capital Markets Act, “FSCMA”) was enacted on March 5, 2013. and Korea Exchange(“KRX”) obtained the license of CCP under FSCMA on September 11, 2013. Finally, the mandatory clearing of KRW interest swap transactions through CCP is scheduled to start from June 30, 2014. KRX originally planned to apply‘assumption of obligation’method as a clearing structure but, due to uncertainty of clearing mechanism, it decided to change it into ‘Novation’method. It is a good progress considering the Close-Out Netting opinion issue and governing law issue etc.. However, there still remain several important legal issues regarding the mandatory clearing through CCP in Korea. The most serious issue is the scope of the transactions to be mandatorily cleared through CCP. The present provision in FSCMA is unclear whether eligible transactions with investment trusts or insurance companies etc. are to be cleared through CCP or not. Whether there is a ceiling of limitation in obligation by a CCP member is also unclear. The protection of a client margin given to KRX through a member in CCP clearing is to be clarified by the revision of law. For the smooth starting of mandatory clearing from the end of June this year, above legal issues shall be considered as soon as possible and I hope KRX and the related regulatory bodies find good solutions in the near future.
이헌영(Lee, Hun Young) 한국증권법학회 2015 증권법연구 Vol.16 No.3
After the crisis from sub-prime mortgage and the bankruptcy of Lehman-Brothers Group around 2008, G20 decided to impose restrictions on OTC derivatives market. One of such restrictions is the mandatory clearing of OTC derivative transactions through Central Counterparty(“CCP”). In case of Korea, the relevant law (i.e. the revision of Financial Investment Services and Capital Markets Act, “FSCMA”) was enacted on March 5, 2013. and Korea Exchange(“KRX”) obtained the license of CCP under FSCMA on September 11, 2013. Finally, the mandatory clearing of KRW interest swap transactions through CCP started from June 30, 2014. Now more than one year has passed after the commencement of mandatory clearing of OTC derivative transactions in Korea, we found several important legal tasks to improve present mandatory clearing system. The most serious issue is the scope of the transactions to be mandatorily cleared through CCP. Under the present provision in FSCMA, it seems that eligible transactions by investment trusts or insurance companies etc. shall be also cleared through CCP. The provisions with respect to the limitation of obligation by a CCP member is not so sophisticated, ether. The protection of a client margin given to KRX through a member of CCP shall be clearly specified through enactment of law or its enforcement decree. In case of client clearing, it is important to make it clear under the relevant regulations whether client faces member’s credit or KRX’s credit. Finanlly, it is desirable that close-out netting opinions with respect to CCP member’s clearing and the client clearing through CCP member shall be provided by CCP(i.e. KRX). For the smooth development of mandatory clearing in Korea, above legal issues shall be reviewed thoroughly and appropriate measures shall be taken as soon as possible.