관상동맥 시술 도중 발생한 좌주간부 관상동맥 박리에 대한 스텐트 삽입 치료의 단장기 임상 결과 : acute and long-term results

이세환,이승환,홍명기,김영학,이철환,한기훈,송종민,강덕현,송재관,김재중,박성욱,박승정 대한내과학회 2004 대한내과학회지 Vol.66 No.6

목적 : 심도자 사용 시술과 관련된 좌주간부 관상동맥박리에 대한 적절한 치료는 아직 확실히 정립되지 않은 상태이다. 이에 본 연구는 좌주간부 관상동맥 박리에 대한 스텐트 삽입술의 단장기 임상결과를 후향적으로 분석하였다. 방법 : 좌주간부 관상동맥 박리에 대한 치료로 즉각적인 스텐트 삽입술을 시행하는 것이 안전하고 효과적인 방법임을 가설하였고, 이러한 즉각적인 스텐트 삽입을 시행한 10명의 환자를 대상으로 단장기적 임상경과를 의무기록 고찰과 전화 면담을 통해서 평가하였다. 결과 : 전체 환자 모두 처음부터 좌주간부 관상동맥에 유의한 협착을 가진 환자는 없었으며, 8명의 환자는 심도자의 조작으로 인한 박리가 발생한 경우였고(진단적 혈관 조영술 중에 3명, 유도 도자 조작 중에 5명), 나머지 2명은 다른 병변에 스텐트 삽입시술을 하는 중에 박리가 발생하였다. 이 10명의 환자에서 모두 즉각적인 스텐트 삽입술이 시행되었고, 4명의 환자에서 시술 도중 혈압 저하로 Intra-aortic Ballon Pump (IABP)를 장착하였다. 모든 환자에서 성공적으로 스텐트가 삽입되었고, 병원내 사망은 1명도 없었다. 6개월 추적 관상동맥 조영술은 8명의 환자에서 시행되었다. 혈관 조영상의 재협착(직경 협착 50% 이상)은 8명 모두에게서 관찰되지 않았으며, 퇴원 후 평균 31±25개월의 추적관찰 결과 주요 심장사건은 1건도 발생하지 않았다. 결론 : 비록 대상 환자가 적은 연구였지만 좌주간부 관상동맥 박리에 대한 스텐트 삽입술은 기술적으로 안전하고 빠르게 시행 할 수 있으며, 훌륭한 단장기적인 치료 효과를 보여준다. Background : The optimal treatment of patients with left main coronary artery (LMCA) dissection during catheter-based procedure remains uncertain. We retrospectively analyzed the acute and long-term results of bail-out stenting for LMCA dissection. Methods : In cases with significant LMCA dissection occurring during catheter-based procedure, prompt stent implantation may be safe and associated with favorable clinical outcome. We evaluated the acute and long-term results of bail-out stenting for LMCA dissection occurring during catheter-bases procedure in 1- patients. Results : Initially, there was significant stenosis of LMCA segment in these patients. Catheter-induced dissection occurred in 8 patients (during diagnostic angiography in 3 patients and guiding catheter manipulation in 5 patients). Two patients suffered dissection in the setting of stent deployment in other vessels. Therefore, bail-out stenting LMCA dissection was performed in a total of 10 patients. In 4 patients, hypotension developed and intra-aortic balloon pump was placed during procedure. Stents were successfully deployed in all patients. There was no in-hospital mortality. Six-month angiographic follow-up was performed in 8 patients. Angiographic restenosis(diameter stenosis 50%) was not observed in all patients at follow-up study. During a mean follow-up of 31±25 months after hospital discharge, there was no major adverse cardiac event (death, myocardial infarction, and target lesion revascularization). Conclusion : Bail-out LMCA stenting is technically feasible, and showed good acute and long-term results in a small series of patients.

Ga 함량에 따른 Cu(In<SUB>x</SUB>Ga<SUB>1-x</SUB>)Se₂ 태양전지의 특성분석

김석기(Seok Ki Kim),권세한(Se Han Kwon),이두열(Doo Yeol Lee),이정철(Jeong Churl Lee),강기환(Ki Whan Kang),윤경훈(Kyung Hoon Yoon),안병태(Byung Tae Ahn),송진수(Jinsoo Song) 대한전기학회 1998 대한전기학회 학술대회 논문집 Vol.1998 No.7

인터넷 쇼핑몰 서비스품질이 고객만족도와 행동의도에 미치는 영향 : 대학생을 중심으로 Focusing on the University Student

방환복,오세용,김창은 한국인터넷비즈니스학회 2003 인터넷비지니스연구 Vol.4 No.2

최근 전자상거래의 급격한 발달과 함께 인터넷이란 가상공간을 통하여 각종 서비스 및 상품을 판매하는 인터넷쇼핑몰이 등장하면서 고객은 자신이 원하는 시간에 다양한 서비스와 상품을 구입할 수 있게 되었고, 기업은 인적, 물리적 공간 자원의 감축으로 효율적 경영, 무한한 제품 전시공간, 전세계로 소비자 확대용이, 중간물류 및 유통단계 생략, 효율적 마케팅, 고객의 소비성향 파악이 보다 쉽게 되는 등의 장점은 오프라인의 한계를 극복하게 해주었다. 하지만 급격한 발달로 인해 인터넷 쇼핑몰의 이론적 장점과 이로 인한 외형적 성장과 달리 몇몇 업체를 제외하고 그리 발전적이지 구조를 지니지 못하고 있다. 이에 대한 원인은 여러 가지가 있겠지만, 인터넷 쇼핑몰의 직접적인 대상인 소비자 분석과 소비자가 판단하는 기업에 대한 서비스 품질, 고객만족 등을 정확하게 파악하지 못하는 것에도 원인이 있다고 본다. 따라서 본 연구는 선행연구와는 다르게 인터넷 쇼핑몰 이용도가 높은 20대, 대학생들만을 대상으로 자신이 주로 이용하는 인터넷 쇼핑몰의 고객만족, 서비스품질, 행동의도 등을 조사하고 서비스품질이 고객만족에, 고객만족이 행동의도에 어떻게 영향을 미치는지를 분석한 결과 서비스품질 하위 요인인 유형성, 신뢰성, 공감성은 고객만족에 영향을 미치고 있었으며, 고객만족은 구매행동(재구매 의도, 구전 의도)에 영향을 미치는 것으로 나타났다. 따라서 본 연구는 인터넷쇼핑몰 운영의 혁신적인 마케팅 기법을 창출하고 소비자의 만족도 제고를 위한 각종 교육 및 정책프로그램을 마련하는 이론적 자료를 제시하고자 하였다. With the rapid development of e-commerce and application of cyber space, many kinds of services and goods start to be supplied in internet. The consumer can get the services and goods he wants at any time. At the same time, the efficiency of management is higher by deduction of manpower, space resources, and infinite exhibition stage attracts the people all over the world, also supply chain is shorter, circulation stage is dismissed, the deduction of buying tendency is easier to find andoffline limitation is overcame. However, for most companies the rapid development leads to the internal development of structure can not support the external expansion except few corporations. There are so many reasons about it, but without doing consumer analysis, service quality, and consumer satisfaction which consumer used to evaluate the producer is the reason included. Different from previous study, this paper focuses on the research of university student in their twenties about their internet shopping consumer satisfaction, service quality, performance intention etc., analyzes the effect of service quality and consumer satisfaction performance intention by doing analysis of quality factor about reliability, empathy, satisfactory purchase performance(latent-purchase intention, before-purchase intention). This study develops innovative marketing method to help you manage of internet shopping and some kinds of education and policy training program supplied to help improve customer satisfactory standards.

소형환편기 자동화기술개발에 관한 연구

최세환,장승호,허유,박준희,권영하 경희대학교 산학협력기술연구원 1995 산학협력기술연구논문집 Vol.1 No.-

소형환편기의 자동화기술을 위해 편환을 이동시킬 수 있는 편침과 cam을 편환이송용 장치를 고안하였다. 위편기의 편환이송 mechanism을 해석하고 소형환편기의 물리적 모사를 통해 편침과 cam의 형상을 최적화하였다. 편환이송장치를 사용하여 편물에 다양한 조직을 편성할 수 있는 편기의 개발이 가능하도록 하였다. The latch needle and cam are newly designed and manufactured to transfer the loop for automation of small circular knitting machine. The loop transfer mechanism is analized by the simulation of needle motion on the V-bed flat knitting machine to which optimum designed cam is attached. This loop transfer mechanism can be applied to small circular knitting machine for automation and variable knitted structure.

Carbachol에 의한 닭 췌조직내 nitric oxide synthase 활성 및 methylated arginine 함량변화

유세근,남석우,박승희,남태균,서동완,한정환,홍성렬,이향우 성균관대학교 약학연구소 1994 成均藥硏論文集 Vol.6 No.1

The role of nitric oxide (NO) in the regulation of exocrine secretion was investigated in chicken pancreatic tissues. Nitric oxide synthase (NOS) in the pancreatic tissues were Ca^2+-dependent form. Treatment of tissue with L-arginine (10 mM) or carbachol (10^-5 M) showed the increase of pancreatic exocrine secretion, but that of D-arginine (10 mM) did not. ^3H-citrulline formation, cyclic GMP level and methyl arginine contents in the homogenates of pancreatic tissues treated with carbachol were not affected. Although the action mechanism of NO in the pancreatic tissues remains unknown, NO apparently participates significantly in the overall control of pancreatic secretory function.

體育 ·스포츠의 競技志向에 關한 硏究 : 大學生을 中心으로 Focus on the University Students

張世鍊,盧日煥 公州大學校 스포츠科學硏究所 1996 스포츠科學硏究所論文集 Vol.- No.10

The purpose of this study is to investigate intention in Physical education and sport. In that purpose, this attempts to understand the structure of practicing sports process. In order to illustrate this attempt, the report consider the image of sports The subjects of this study are indicated as follows: 1. Competition group: they practice sports in order to win. 2. Recreational group: they practice sports for leisure without any aims of winning 3. A questionnaire was used with 30 pairs of adjectives arranging between the extremes of two contrasting meanings. The result of this questionnaire was analyzed by factor analysis. And the results of this study are indicated as follows: 1. Both groups shared a common tendency to profile of the image. 2. Different properties of words were selected on the concept of "Painful-Pleasure" 3. After factor analysis, common, factors were made out between the two group.

준 열원의 강도분포에 관한 연구

도시홍,정세민,배세환,성상기,박흥준 釜山水産大學校 1985 釜山水産大學 硏究報告 Vol.25 No.1

실험결과 다음과 같은 결론을 얻을 수 있었다. q=3,q=30일때 최대치의 확율은 각각 0.08, 및 0.029이었다. 이것은 Pearl과 Troup의 결과 (q=1.9106, q=5.6904 및 q=34.7657 일때 최대치의 확율은 각각 0.09, 0.06 및 0.02)와 아주 유사했으며, 관측시간의 증가에 따라 분포의 천이경향도 이론적 결과와 잘 일치 되었다. 또한 준열원에서 방출된 광자들이 공간내의 유한한 영역에서 고르게 분포되어 있을때 그 광원을 coherence time보다도 더 긴 시간동안 관찰한다면 그 관원을 gaussian으로 취급할 수 있으며, 광자에 대한 Bose-Einstein 통계의 적용이 타당함과 Mandel의 근사공식(q>>1, q<<1인 경우)이 잘 성립될 것임을 실험으로 예상할 수 있었다. Light emitted from a source fluctuates both spatially and temporally. The spatial fluctuations are due to the finite size of the source and the spatial incoherence of the photons emitted from various parts of the source. Temporal fluctuation are due to the wide blackbody spectrum emitted by such a source. It is a direct result of the Bose-Einstein statistics obeyed by photons. Actual measurements on the statistical behavior of thermal light are conducted by pseudothermal light source. In the experiment, we examined the probability density f(I) that the intensity I associated with one or pore coherence volumes is between I and I+dI and the deviation for q<1, which is given by G. Bedad et al. The derivation of f(1) for the case of more than one coherence volume has been given in an approximate form by Mandel and by Troup. As a result, we obtain p(n,T)=0.08 at q=3 and p(n,T)=0.029 at q=30. These are very similar to pearl and Troup's [p(n,T)=0.09 at q=1.9106, p(n,T)=0.06 at q=5. 690, p(n,T)=0.02 at q=34.7657]. So we can conclude that when we observerse pseudo-thermal source for a long time (compared with its coherent time), the source can be treated as a gaussian light source and Mandel's approximation is good fit for photon counting.

췌장암 환자에서 알코올 내장신경 신경파괴블럭 후 발생한 간염

이상은,최석환,김영환,임세훈,이정한,이근무,정순호,최영균,김영재,신치만 인제대학교 2008 仁濟醫學 Vol.29 No.-

Splanchnic neurolytic block(SNB) with alcohol improves the management of pancreatic cancer pain. Adverse effects of alcohol SNB which include regional pain, hypotension, diarrhea, and acute alcohol intoxication are common, but acute hepatitis caused by alcohol neurolytic block is rare. A 63-year-old patient with pancreatic head cancer and liver metastasis had complete pain relief after both retrocrural tansdiscal SNB with 100% alcohol 10 ml. But, 1 day later, liver function test showed a high elevation in the aspartate aminotransferase (AST, 2182 IU/L) and alanine aminotransferase (ALT, 1807 IU/L). The patient had slight jaundice, general weakness, chilling, nausea and vomiting after SNB. Both AST and ALT decreased to 46 and 119 IU/L within 10 days with only supportive therapy. But, 19 days later, the patient died due to pneumonia. Our case illustrates the importance of clinical surveillance especially in patient with hepatic disease after alcohol SNB.

족관절 염좌에서 근주용 Prioxicam의 임상효과 : An open non-Comparative Trial

인주철,안종철,김세동,안면환,서재성 최신의학사 1988 最新醫學 Vol.31 No.11

위암환자의 예후인자로서 cyclin D1의 유용성에 관한 연구

류석용,김홍용,한세환,배병노 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.1

■ Objectives This study was conducted to evaluate the clinical implication of cyclin D1 expression in human gastric cancer. In addition, clinical utility of cyclin D1 as a prognostic marker in human gastric cancer was also evaluated. ■ Methods and materials Medical records and archival pathology tissues from 76 primary gastric cancer patients who underwent curative gastric resection and same postoperative adjuvant chemotherapy were evaluated. Correlation between cyclin D1 expression and clinicopathological parameters was investigated. ■ Results Expression of cyclin D1 was observed in 22 of 76(28.9%) gastric cancer tissues. Expression of cyclin D1 did not correlate with depth of tumor infiltration(p=0.15), lymph node metastasis (p=0.54) and pathologic stage of the disease(p=0.45). Cyclin D1 expression slightly increased in intestinal type tumors. but there was not significant correlation between cyclin D1 expression and Lauren's classification(p=0.50). Increased expression of cyclin D1 was observed more frequently in the tumors with high levels of S-phase fraction but there was not a sign ficant correlation between expression of cyclin D1 and S-phase(p=0.14). Cyclin D1 expression increased in diploid cancers but the result showed no statistical significance(p=0.47). In the analysis for prognostic significance of cyclin D1 in gastric cancer, there was not significant correlation between clinical outcome of the patients and cyclin D1 expression (p=0.39). ■ Conclusions Cyclin D1 expression was not significant correlation with clinicopathologic characteristics, cell growth and differentiation in human gastric cancer and expression of cyclin D1 did not have prognostic significance. Additional study seems to be necessary to elucidate the clinical utility of cyclin D1 as a useful prognostic marker in human gastric cancer.