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급성 식도정맥출혈에 대한 내시경적 경화요법과 내시경적 정맥류 결찰요법의 비교
이은학(Eun Hag Lee),이문성(Moon Sung Lee),이준성(Joon Seong Lee),김진홍(Jin Hong Kim),조성원(Sung Won Cho),심찬섭(Chan Sup Shim) 대한내과학회 1994 대한내과학회지 Vol.47 No.2
Objectives: Endoscopic injection sclerotherapy (EIS) is currently the most widely practiced method for treating and eradicating bleeding esophageal varices in repeated sessions, but may be associated with some undesirable local and systemic complications. Endoscopic variceal ligation (EVL), which consists of mechanical ligation and thrombosis of varices using elastic 0-rings, has been recently developed as a non-operative alternative to EIS. Methods: To evaluate the safety and efficacy of EVL for treatment of the acute bleeding esophageal varices, we compared EVL and EIS in 89 patients who had recently bled from esophageal varices. 43 patients were treated with EVL, and 46 with EIS. We assesed the hemostatic efficacy for actively bleeding varices, the recurrences of bleeding, the ablility for eradication of varices, the number and duration of treatments needed to eradicate varices, and the incidence of complications. Results: Initial hemostatic efficacy of EVL for actively bleeding varices did not differ to EIS (90% VS 90.9%). Incidences of rebleeding showed no statistical difference between EVL and EIS (18.6% vs 23.9%). Abilities for eradication of varices showd 83.7% (36 of 43 patients) in EVL and 82.6Fp (83 of 46 patients) in EIS. The number of treatments required to eradicate varices did not differ between EVL and EIS (4.2 vs 3.8 sessions), but EVL achieved variceal eradication more slowly than EIS (44,6 vs 20.8 days) (p<0.01), Complications were less common in EVL than EIS; chest discomfortness (22.S% vs 70.3%), chest pain (1.5% vs 46.8%), fever (1.5% vs 27.9%), transient dysphagia (2.2% vs 18.9%), pleural effusion (1.8% vs 0%). Conclusion: EVL is a safe and effective alternative method to EIS for treatment of bleeding esophageal varices.
이은학(Eun Hag Lee),주재학(Jae Hak Joo),이명렬(Myung Lyel Lee),박찬욱(Chan Wook Park),송동화(Dong Hwa Song),이준성(Joon Seong Lee),이문성(Moon Sung Lee),조성원(Sung Won Cho),심찬섭(Chan Sup Shim) 대한소화기학회 1995 대한소화기학회지 Vol.27 No.1
Primary sclerosing cholangitis characterized by inflammation and fibrosis of the biliary tree with diffuse multifocal stricture formation is a chronic cholestatic liver disease that often progresses to cirrhosis and premature death from liver failure. Because histologic findings are not diagnostic in the majority of patients, the gold standard for diagnosis of primary sclerosing cholangitis is cholangiography. We present two cases of primary sclerosing cholangitis diagnosed by typical cholangiographic findings through the endoscopic retrograde cholangiography(ERC). (Korean J Gastroenterol 1995;27:138-143)
생존분석을 이용한 고속버스의 운전지속시간이 위험운전행태에 미치는 영향요인 분석
이은학(LEE, Eun Hak),이호영(LEE, Hoyung),김거중(KIM, GUR-Jung),고승영(KHO, Seung-young),김동규(KIM, Dong-Kyu) 대한교통학회 2017 대한교통학회 학술대회지 Vol.76 No.-
국토교통부는 2012년까지 전국 버스 차량을 대상으로 디지털 자동차운행기록계(Digital Tacho Graph, DTG) 장착을 의무화 하였다. DTG는 자동차 운행에 관련한 정보를 기록하는 기기로 24시간 기준 1초단위 86400개의 정보가 수집되며, 속도, RPM, 가속도, 위치정보를 포함한 차량 운행에 관련한 18개의 정보를 실시간으로 저장한다. 본 연구에서는 DTG 데이터를 이용하여 고속버스의 운전지속시간이 운전행태에 미치는 영향을 분석하였으며, 위험운전행태는 교통안전공단에서 정의하고 있는 차종별 위험운전행태에서 제시하는 기준을 적용하였다. 충청권 시외고속버스 31대에 대한 카플란-마이어 생존함수 분석결과, 운전지속시간에 따른 3가지 운전위험행태의 생존함수는 지속적으로 감소하는 것으로 나타났다. 운전지속 11시간 동안 평균 27,178초의 운행시간 중 평균 283번의 위험운전상태가 감지되었으며, 생존확률은 97.4%, 위험확률은 2.6%로 나타났다. 또한, 개별 위험운전행태가 위험운전행태에 미치는 심각도를 알아보기 위하여 Cox 비례위험분석을 수행하였다.
경피경간 담낭내시경술에 의한 Mirizzi 증후군 내시경적 치료
이은학(Eun Hag Lee),김주호(Ju Ho Kim),박찬욱(Chan Wook Park),송동화(Dong Hwa Song),이문성(Moon Sung Lee),조성원(Sung Won Cho),심찬섭(Chan Sup Shim) 대한소화기학회 1995 대한소화기학회지 Vol.27 No.3
The Mirizzi syndrome is commonly defined as common hepatic duct obstruction caused by extrinsic compression from an impacted stone in the cystic duct. The treatment of the Mirizzi syndrome has traditionally been surgica1. Some cases of endoscopic treatment of this syndrome with electrohydraulic lithotripsy(EHL) has been recently reported. We experienced a case of the Mirizzi syndrome successfully treated endoscopically with EHL under cholecystoscopic guidance, so report it with a review of the literature. (Korean J Gastroenterol 1995;27:369-374)
이은학 ( Lee Eun Hak ),최홍석 ( Choi Hong Seok ),이재성 ( Lee Jae Seong ),고승영 ( Kho Seoung-young ),박호철 ( Park Ho-chul ) 한국도로교통공단 2020 교통안전연구 Vol.39 No.-
This study aims to evaluate the publicness of highway construction projects. The evaluation was performed for two types of projects, i.e., government-funded and private-invested projects. Various Indicators related to the highway publicness were comprehensively reviewed, and 12 indicators were selected using the non-dominant solution method. The Analytic Hierarchy Process (AHP) was conducted to estimate the weights and scores of the selected publicness indicators. The result of the analysis showed that the publicity score of the Seoul~Sejong highway was 65 points for public projects and 58.6 points for private projects. These results indicate that publicness could be improved mostly when implemented in public projects.