계획수술 취소율과 취소사유에 대한 분석

유시현,조성환,김천숙 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.1

Background: Cancellation of a planned surgery is a waste of time and money. Also cancelled patients experience significant psychologic and economic burdens. Object: The aim of this study is to analyze the reasons for cancellation of an elective operation and enhance the efficacy of managing the OR. Material and Method: We performed prospective study in patients who planned elective surgery under general or regional anesthesia from January 1, 2003 to March 31(the first period) and from August 1, 2003 to September 31, 2003(the second period) in the operating room of Soonchunhyang cheonan Hospital. Daily total number of planned elective surgeries, number of cancellation, and the most important reasons for cancellation were recorded. Comparison of the cancellation rate between the two period was performed. Result: The total number of planned elective surgery in first and second period was 1,655 patients and 1,186 patients respectly. The the total number of cancelled patients in first and second period was 57 patients and 42 patients respectly. Thus the mean rate of cancellation was 3.44% in the first period and 3.54% in the second period. The reasons for cancellation were as follows: refusal of operation(39%) was most common in the first period, the next were no admission(21%) and combined systemic disease(21%). But in the second period, no admission(45.3%) was most common, the next were combined systemic disease(21.4%). Conclusion: There are several ways to decrease the cancellation rate in operating room. Good rapport and sincere communication with patients is the most important ways to decrease cancellation rate in Soonchunhyang cheonan hospital.

노인 인구에서 신경인지기능저하와 혈청 지질농도와의 상관성

유영선,최석주,정성수,김지은,윤성욱,전동욱,백준형,박성우,이정구,추일한,김영훈 大韓神經精神醫學會 2008 신경정신의학 Vol.47 No.6

Objectives : In this study, the authors evaluated the correlation between eurocognitive impairments and serum lipids levels among Korean elderly over the age of 65. Methods : A total of 609 elderly individuals participated in this study. Screening for cognitive impairments were carried out using the Mini-Mental Status Examination-Korean version (MMSE-KC). There were 197 subjects above 1.5SD Of MMSE- KC and they were evaluated using the Korean versions of the Consortium to Establish a Registry for Alzheimer's Disease (AD) (CERAD-KC) and Geriatric Depression Scale (GDS-K). Results : There was a correlation between old age/low levels of education and AD (p<0.05, P<0.01). There was an inverse correlation between the serum level of total cholesterol and the word list recognition test scores. The serum levels of LDL cholesterol were inversely correlated with the scores on the constructional praxis test, word list recall test and word list recognition test. Inverse correlations between the serum level of triglyceride and scores on the word list recall test and word list recognition test were also observed. Conclusion : There were inverse correlations between the serum levels of lipids and language/memory function in subjects with AD.

성격의 변화를 수반한 Wilson씨병 1례

유세종,이상렬,박민철 圓光大學校 醫科大學 神經精神科學敎室 1994 圓光精神醫學 Vol.10 No.2

We had a 22 year old male patient with Wilson's disease showing neuropsychiatric symptoms. He showed neuropsychiatric symptoms such as personality change, regressed and childish behavior, wing-beating tremor and rigidity on the upper extrmity, open mouth, drooling, bradykinesia, dysarthria and dysphagia. In brain MRI findings, bilateral high signal intensity on T2WIs were observed in basal ganglia, thalamus, central midbrain and periaqueductal pons. In liver scan, splenomegaly was detected. At a slit-lamp examination, we detected the brownish colored pigments(Kayser-Fleisher ring) on Descement's membrain of both eye corneas. Laboratory findings were a low serum ceruloplasmin(2.63㎎/dl, normal: 25~45㎎/dl), low serum copper level(32㎍/dl, normal: 80~130㎍/dl), and an increased 24 hous urine-copper excretion level(258㎍/day, normal: 15~30㎍/day). Therefore, we diagnose the patient as having wilson's disease and we started medication treatment with penicillamine.

C.V.D. 방법에 의한 Cd_0.78Zn_0.22 S박막 성장과 광전기적 특성연구

유상하,이상렬,홍광준,서상석,김혜숙,전승룡,윤은희,문종대 조선대학교 기초과학연구소 1993 自然科學硏究 Vol.16 No.1

We had grown Cd_0.78Zn_0.22S polycrystal thin films on slide substrate using chemical vapour deposition(CVD) method. We measured X-ray diffraction patterns in order to study Cd_0.78Zn_0.22S polycrystal structure. We studied its band gap using transmission curves and photocurrent and also analyzed photoluminescence using configurational coordinate model. We measured Hall effect·on this sample by Van der Pauw method and studied on carrier density and mobility depending on temperature.

n-CdS_(0.46)Se_(0.54)/p-Cu_92-x)S_(0.46)Se_(0.54) 이종접합 태양전지의 제작과 그 특성에 관한 연구

유상하,최승평,이상열,홍광준,서상석,김혜숙,전승룡,윤은희,문종대,신영진,정태수,신현길,김택성,유기수 全北大學校 基礎科學硏究所 1994 基礎科學 Vol.16 No.-

승화방법에 의해 CdS_0.46Se_0.54 단결정을 성장하여 결정구조를 조사하고, Van der Pauw 방법으로 Hall effect를 측정하여 carrier density의 온도 의존성과 mobility의 온도 의존성을 조사하였다. 성장된 CdS_0.46Se_0.54 단결정을 치환반응하여 n-CdS_0.46Se_0.54/p-Cu_2-xS_0.46Se_0.54 이종접합 태양전지를 제작하였다. Spectral response, 전류-전압특성 및 전력변환 효율을 조사하여 그 결과로부터 개방전압은 0.48V, 단락 전류 밀도는 21mA/㎠, fill factor와 전력변환효율은 각각 0.75와 9.5%를 얻었다. CdS_0.46Se_0.54 single crystal was grown by a sublimation method. The crystal structure and the temperature dependence of carrier density and mobility of CdS_0.46Se_0.54 single crystal were studied. Heterojunction solar cells on n-CdS_0.46Se_0.54/p-Cu_2-xS_0.46Se_0.54 were fabricated by the substitution reaction. The spectral response, the J-U characteristics and the conversion efficiency of the n-CdS_0.46Se_0.54/p-Cu_2-xS_0.46Se_0.54 heterojunction solar cells were studied. The open-cricuit voltage, short-circuit density, fill factor and conversion efficiency of n-CdS_0.46Se_0.54/p-Cu_2-xS_0.46Se_0.54 heterojunction solar cells under 80mW/㎠ illumination were found to be 0.48V, 21mA/㎠, 0.75 and 9.5%, respectively.

비아그라??복용 후 발생한 급성 심근경색증

유지영,왕순주,조성훈 대한응급의학회 2001 대한응급의학회지 Vol.12 No.2

Erectile dysfunction(ED) is defined as the inability to achieve and/or maintain an erection which is sufficient for satisfactory sexual activity. Risk factors for ED include many of the same risk factors for cardiovascular disease: hypertension; lipid abnormalities, including low high-density lipoprotein cholesterol; diabetes; and smoking. Therefore, some patients with ED will have ischemic heart disease. Viagra□, an oral therapy for ED, is the citrate salt of sildenafil, a selective inhibitor of cyclic guanosine monophosphate(cOMP)-specific phosphodiesterase 5(PDE5). The adverse effects of sildenafil include headache, flushing, dyspepsia, nasal congestion, visual disturbance, and cardiovascular complications. A general impression exists that cardiovascular complications of sildenafil occur mainly when the drug is taken concomitantly with nitrate. We report the case of a 52-year-old man who developed an acute myocardial infarction shortly after taking one tablet of sildenafil without sexual activity. The patient had not been using nitrates. Physicians treating patients with chest pain should be aware of the potential consequences of giving nitrates to patients taking sildenafil. We suggest that before initiating therapy, the history of sildenafil ingestion be obtained from patients with suspected myocardial infarction.

공공의 이익을 위한 특허발명의 강제실시 : 의약발명을 중심으로

유병선,백상기 충남대학교 생물공학연구소 2005 생물공학연구지 Vol.11 No.1

This study focuses on the establishment of compulsory license to the patented invention, particularly pharmaceutic patent for public interests. With a view to promoting the development of technology and industry, Patents Act grants patentees an exclusive right to exploit the patented invention. For the purpose of the same goal, on the other hand, Patents Act imposes a few limits upon the exclusive right of patentees. A compulsory license is one of the limits upon patent right. A compulsory license is not an exceptional management from outside, it already exists in the inside of the right in view of the fact that Patent is the right granted artificially to contribute to the development of the industry. Pharmaceutic patent is closely related to human life directly or indirectly. Accordingly it has been discussed internationally to establish compulsory license to pharmaceutic patent for public interests. Regarding this problem, advanced countries and undeveloped countries are at issue with each other. We examine our position about compulsory license to pharmaceutic patent considering the degree of industrial development, especially the reality of pharmaceutic industry where Multinational Corporation of foreign country produces the most medicine. In case of Korea, there is a necessity for compulsory license in wide ranges in comparison with advanced countries such as Canada, Britain, Germany, France and so on within the limits of Agreement on TRIPs. In view of the above statements, it raises several problems of compulsory license under the Patent Act of Korea and proposes their solution. First of all there needs the realistic interpretation of the requirements for public interests and the flexible viewpoint about compulsory license to pharmaceutic patent. It is finally submitted that statutory provisions on compulsory license are designed as an efficient means of promoting goals of the Patents Acts and, also, that terms, conditions and procedures for compulsory license will have to be amended to make a better balance between the interests of patentees and public interest.

탄성 다물체 동력학 해석 프로그램을 위한 중간 처리기 CNU_IP 개발

유진영,김성수 忠南大學校 産業技術硏究所 1996 산업기술연구논문집 Vol.11 No.1

An intermediate processor, called CNU_IP, has been developed to generate and transfer the necessary data from the commercial finite element program ANSYS to the flexible multibody dynamics program AUTODYN7, which is under development. Binary result file reading routines have been developed to extract deformation mode shapes and consistent mass matrices from the ANSYS binary result file. Using extracted deformation modes, the CNU_IP carries out inertia relief computation for the static correction mode based on the component mode synthesis theory. The program also produces lumped mass entries and lumped rotary inertia entries for the flexible body equations of motion by diagonalizing the consistent mass matrices from the finite element model of a flexible body. Various methods to generate lumped rotary inertia entries have been investigated to select the appropriate method. To show the use of CNU_IP, a flexible chassis model of a military jeep has been demonstrated to produce necessary flexible body data for AUTODYN7.

Backward Sway 동안의 자세움직임 형태에 대한 근전도와 생체역학적 분석

류승현 한국전문물리치료학회 1995 한국전문물리치료학회지 Vol.2 No.2

저체중 또는 과체중 청소년에서 캠프 프로그램을 이용한 영양 교육효과에 관한 연구

성미경,승정자,류화춘,박재년,박동연,최미경,조경옥,최선혜,이윤신,김유경,이은주 대한지역사회영양학회 2003 대한지역사회영양학회지 Vol.8 No.4

This study was performed to evaluate the effectiveness of a nutrition education program developed for nutritionally imbalanced adolescents. A summer nutrition camp was held for 23 overweight and 16 underweight subjects. Its effectiveness with regard to was evaluated at the end of the camp and 6 months later. Nutrition knowledge, nutritional attitude, food behavior, nutrient intake, exercise habit and ideal body figures desired by the subjects. The results showed significantly higher nutrition knowledge scores at the end of the camp as compared to those obtained prior to the camp program, and these scores were maintained for at least six months. Nutrition attitude scores also improved after the education program, and these improved scores also lasted for 6 months. However, the food behavior scores measured 6 months after the education program were not significantly different from those obtained prior to the camp. Also, the exercise habit, the ideal body figures and the body figures desired by the subjects remained unchanged. When nutrient intakes of subjects were assessed before the program and 6 months later, the mean daily vitamin C intake was significantly increased after the education program. Also, the intake of iron from plant food sources increased in the overweight subjects, while less iron from animal source were consumed by the underweight subjects. Both groups tended to consume more vegetables and fruits 6 months after the education program which may have contribute to the higher vitamin C and plant-based iron intakes. These results indicate that a 4-day nutrition education camp program sustained changes in nutrition knowledge and nutrition attitude for 6 months. The increased intake of vegetables and fruits was also achieved through this education program. However, changes in dietary behavior in adolescents may require repeated education.