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임창영,문승철,양진영,구원모,김대식,이건,이헌재,Lim, Chang-Young,Moon, Seung-Chul,Yang, Jin-Young,Koo, Won-Mo,Kim, Dae-Sig,Lee, Gun,Lee, Hyeon-Jae 대한흉부심장혈관외과학회 1999 Journal of Chest Surgery (J Chest Surg) Vol.32 No.11
Background: ATS mechanical valve is a recently introduced pyrolytic carbon bileaflet prosthesis. This report is to evaluate the results of hemodynamic and anticoagulant therapy after ATS valve replacement. Material and Method: From May 1995 to October 1998, 53 patients received 65 ATS prosthesis; 38 Mitral(27-33 mm), 27 Aortic(19-25 mm). 2 CABGs and 5 Tricuspid annuloplasty were taken concomitantly. The follow up period was 769 patient-months(mean 16.2$\pm$10.0), varied from 1 month to 39 months with 92.5% follow up rate. All patients were evaluated with Doppler echocardiography, 7-14 days after operation. Result: NYHA functional class was improved significantly, from 2.6$\pm$0.8 preoperatively to 1.3$\pm$0.4 postoperatively. The average value of peak and mean transvalvular pressure gradients were 25.7$\pm$13.5 mmHg, 12.7$\pm$8.3 mmHg in aortic position. In the mitral position, the average values of peak and mean transvalvular pressure gradient and valve area were 5.9$\pm$2.5 mmHg, 3.1$\pm$0.8 mmHg and 2.9$\pm$0.5 $\textrm{cm}^2$, respectively. In the anticoagulant therapy, mean INR was 2.5$\pm$0.6 in mitral valve replacement and 1.9$\pm$0.5 in aortic valve replacement. There was no anticoagulant related complication. During that period, there were 3 hospital death(5.9%) and 1 late death(1.9%). Conclusion: The early clinical results of the ATS heart valve replacement is quite satisfactory, and low target INR reginmen is safe. And long term follow of hemodynamic characteristics is also necessary.
임창영(Chang Young Lim),김대현(Dae Hyun Kim),박상현(Sang Hyun Park),경쾌수(Kwae Soo Kyung),전영빈(Young Bin Jeon),유권(Kwon Yoo),이윤우(Yun Woo Lee) 대한소화기학회 1995 대한소화기학회지 Vol.27 No.6
The autoimrnune chronic hepatitis is a rare cause of chronic liver disease in Korea. A case of autoimmune chronic hepatitis was diagnosed in a 24 year-old female. She was admitted to the hospital due to the pain and swelling of the right parotid gland. Her liver function test had been known to be abnormal also. The liver biopsy was performed for the further evaluation of abnormal liver function. It showed chronic active hepatitis without evidence of viral infection or injury by hepatotoxin. Laborotory test showed hypergammaglobulinemia and autoantibodies. We report this case as a autoimmune chronic hepatitis with literature review. (Korean J Gastroenterol 1995;739 - 743)
궤양성 대장염 환자의 대장 점막에 발현된 Chemokine 유전자의 발현 양상 - 합성 RNA를 이용한 정량적 역전사 PCR법의 응용
임창영(Chang Young Lim),임선희(Seon Hee Lim),정현채(Hyun Chae Jung),송인성(In Sung Song),김정룡(Chung Yong Kim) 대한소화기학회 1995 대한소화기학회지 Vol.27 No.4
N/A Background/Aims: Chemokines play an important role in the recruitment of neutrophil and mono- cyte. Recently, the implication of the cytokines in the ulcerative colitis is increasingly emphasized. The purpose of this study was to explore the profile of the chemokine gene expression in the colonic mucosa in patients with ulcerative colitis, and to quantify cytokine mRNA by way of quantitative reverse transcriptional PCR using synthetic standard RNA. Methods: Total tissue RNA was extracted from colonic biopsies of normal controls(NC, n=10) and patients with ulcerative colitis (n=8) [from active(Uca, n=8) and normal looking mucosa(Ucnlm, n=7) areas]. The chemokines for study were interleukin-8(IL-8), monocyte chemotactic & activating factor(MCAF), and additionally granulocyte macrophage colony stimulating factor(GM-CSF). Detection and quantification of chemokine gene expression were performed by quantitative reverse transcriptional PCR. Results: IL-8 mRNA was detected in 6 from 8 Uca, 3 from 7 Ucnlm, and 3 from 10 NC. MCAF mRNA was detected in 7 from 8 Uca, 3 from 7 Ucnlm, and 1 from 10 NC. GM-CSF mRNA was detected in 1 from 8 Uca, and none from 10 NC. IL-8 and MCAF mRNA expression was increased in the Uca compared to normal controls, and their mRNA expression level was higher in Uca compared to normal controls. Conclusions: These findings sugge.t that the chemokines such as IL-8 and MCAF may play an important role in the pathogenesis of ulcerative colitis. Further studies are demanded to reach a conclusion on whetber highly expressed IL-8 and MCAF in normal looking mucosa of ulcerative colitis could be involved in pathogenesis of UC. (Korean J Gastroenterol 1995;27:394 - 402)
임창영(Chang Young Lim,),유일상(Il Sang Yoo) 한국산업경영시스템학회 2016 한국산업경영시스템학회 학술대회 Vol.2016 No.추계
It is important to complete the project within the specified time period and the limited budget in the current rapidly changing business environment. It is difficult to predict the cost of the project in early stage because of the large-scale trend. Budget shortfall due to the failure of cost prediction serves as a higher risk of success. Most previous studies to prevent the risk such as budget shortfall have investigated the direct costs. However, research on the overhead costs are insufficient in terms of both quality and quantity. Direct costs are easily computed for each basis of calculation. But overhead costs that include indirect costs except indirect material cost(IMC) are necessary reasonable and efficient management because they are changed in accordance with the rate of overhead costs. In this paper we introduce an analysis method of overhead costs applied for a Space Launch Vehicle R&D Project.
임창영 ( Chang-young Lim ) 한국산업디자이너협회 2009 산업디자인학연구 Vol.3 No.2
The portable respirator is a product for rescue under disaster and hazard while the Dacc Co., Ltd possesses the compound material technology of storage container which is a core technology as the first in our country. Even in foreign countries, the product market on safety and disaster prevention is going through a tremendous growth while the new market of public buildings is rapidly growing followed by replaced demand of fire prevention products and amendment of fire prevention law. Currently, the Dacc Co., Ltd is a later starter according to market penetration despite the excellence of material technology and technological development ability in its products and because the integrated products are still lacking in our country, the performance and price value as new product are becoming obstacles while the situation is that the development of control device interface that has precisely identified the characteristics of product is necessary at the same time.
다한증환자의 흉부교감신경절단술시 양측 손바닥의 온도변화
이헌재,김대식,문승철,구원모,양진영,이건,임창영,박정현,Lee, Hyeon-Jae,Kim, Dae-Sik,Moon, Seung-Cheol,Koo, Won-Mo,Yang, Jin-Young,Lee, Gun,Lim, Chang-Young,Park, Chung-Hyun 대한흉부심장혈관외과학회 1999 Journal of Chest Surgery (J Chest Surg) Vol.32 No.5
Background: Thoracoscopic T2 sympathicotomy is an effective method for the treatment of palmar hyperhidrosis. Not only are the symptoms of hyperhidrosis abolished but also the temperature of the ipsilateral palm is elevated due to the sympatholytic vasodilation after the completion of the sympathicotomy on the first side. However little is known about the temperature changes in the contralateral palm. This study was performed to evaluate the changes in both palmar temperatures during the thoracoscopic T2 sympathicotomy for palmar hyperhidrosis. Material and Method: Thoracoscopic T2 sympathicotomy was performed in 15 patients with primary palmar hyperhidrosis. Surface temperatures of both palms were monitored continuously and were recorded simultaneously during the 7 different stages of the operation. Result: When T2 sympathicotomy was performed on the first(left) side, an ipsilateral increase with a contralateral decrease of temperature was observed. The difference in the temperature of both palms was greatest just before the sympathicotomy on the contralateral(right) side(Lt. 34.6$\pm$0.9$^{\circ}C$ vs. Rt. 31.6$\pm$1.3$^{\circ}C$, P<0.0001). After the sympathicotomy on the second(right) side, temperature of the right palm was elevated. The difference in the temperature of both palms was abolished at the end of the operation(Lt.34.7$\pm$0.9$^{\circ}C$ vs. Rt.34.4$\pm$1.$0^{\circ}C$, P=0.415). Conclusion: When T2 sympathicotomy was performed on the first side, an ipsilateral palmar temperature increased due to the sympatholytic vasodilation. However contralateral palmar temperature decreased due to a vasoconstriction. Although the mechanism of vasoconstriction is still unknown, it is postulated that there may be a cross- inhibitory effect by the post-ganglionic neurons innervating blood vessels of the palm. 배경: 흉강경을 이용한 T2 교감신경절단술은 수장부다한증의 효과적인 치료법이다. 교감신경을 절단하면 다한증 증상이 소실되는 것은 물론 피하혈관의 확장으로 동측 손바닥 온도가 올라간다. 그러나 반대측 손바닥의 온도 변화에 대해서는 밝혀진 바가 적다. 저자들은 수장부다한증 환자에서 교감신경절단술 과정에 나타나는 양측 손바닥 온도의 변화양상을 알아보고자 하였다. 대상 및 방법: 일차성 수장부다한증 환자 15명에서 T2 교감신경절단술을 시행하였다. 수술중 양측 손바닥에 피부온도감지패취를 부착하여 손바닥의 온도를 관찰기록하였다. 결과: 먼저 좌측 2번 흉부교감신경을 절단하자 동측 손바닥의 온도는 상승하고 반대측 손바닥의 온도는 감소하였다. 두 손바닥의 온도차는 우측 교감신경절단전에 가장 컸으며(좌측 34.6$\pm$0.9 $^{\circ}C$, 우측 31.6$\pm$1.3$^{\circ}C$, P < 0.0001) 반대쪽(우측) 교감신경을 절단하자 감소하였던 우측 손바닥의 온도가 상승하여 수술종료시 두 손바닥의 온도차가 없어졌다(좌측 34.7$\pm$1.0 $^{\circ}C$, 우측 34.4$\pm$1.0 $^{\circ}C$, P=0.415). 결론: 수장부 다한증에서 교감신경절단술을 시행할 때는 상지에 분포하는 교감신경이 정확히 차단되었는가를 확인하는 것이 중요하다. 이를 위해서 수술중 손바닥 피부온도를 측정하여 온도상승을 확인한다. 반대측 손바닥 온도가 감소하는 기전인 혈관수축에는 교차억제효과(Cross inhibitory effect)가 관계될 것으로 생각되며 향후 이에 대한 많은 연구가 이루어져야 할 것으로 생각된다.