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식도 정맥류 출혈에 대한 내시경적 경화요법의 장기적 관찰
이민호(M H Lee),기춘석(Chun Suk Ki),박경남(K N Park),윤인혁(I H Yoon),한덕호(D H Han),이성구(S G Lee),이종철(J C Rhee) 대한소화기학회 1986 대한소화기학회지 Vol.18 No.1
Esophageal variceal bleeding due to portal hypertension is very emergency state and needs emergency treatment. Crafoord and Frenckner introduced endoscopic injection sclerotherapy in esophageal variccal bleeding since 1939, its good effects are reported in many institute recently. This is to report the result of EIS of 88 patients with esophageal varix who had been admitted to the Department of Internal Medicine at Hanyang University Hospital. The result are as follows 1) Aiultivariate analysis revealed that grade of ascites, grade of encephalopathy, prothrombin time, bilirubin and GPT were distinguished best between survivors and nonsurvivors during the first 6 months after inclusion in the study. The difference in the 1-year survival rates of Childs group A and B versus Child's C patients was highly significant(p<0.002). 2) In the 88 cases, the survival cases beyond 36 months were noted in 4 cases and most long duration of survival was 42 months. 3) Rebleedings were noted in 19 cases(21.6%) and of these, re-rebleedings were noted in 9 cases(47.4%) but death due to variceal bleeding were only noted in 7 cases7.9%). Incidence of rebleeding were most high within 6 months(11.4%). 4) Major complications of the sclerotherapy were noted in 9 cases10.2%) but no correlations to direct cause of death were found. 5) Death were noted in 34 cases(38.6%) and cause of death were mostly hepatic failure and hepatocellular carcinoma(76.4%). 5) Furthermore EIS has advantages such as simple, safe, inexpensive. Therefore, EIS is proposed as treatment of choice for patients with esophageal variceal bleeding.
內燃機關 排氣系를 통한 非定常 가스流動에 관한 數値解析
박진용(J.Y.Park),이민호(M.H.Rhee),임인권(L.K.Lim),차경옥(K.O.Cha) 한국자동차공학회 1996 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1996 No.11_2
This thesis describes a theoretical and exprimental investigation of the pressure-time histories of some basic internal combustion engine exhaust systems. The program package is written in Fortran 77 and utilizes the Method of Characteristics to solve the general equations of one-dimensional unsteady gas flow. Using a rotary valve exhaust simulator, experimental pressure-time histories were obtained. The predictions are compared with measured results and show a high degree of correlation.