관상동맥내 스텐트 삽입후 발생한 관상동맥류 2례

제인수,허민영,문치숙,이재호,정수룡,조길현,이영민,김대경,김두일,김동수 인제대학교 백병원 2002 仁濟醫學 Vol.23 No.3

Coronary artery aneurysms are detected with increasing frequency because of the routine use of coronary angiography in the diagnosis and management of coronary artery disease. Although some coronary artery aneurysms are congenital or inflammatory, most are atherosclerotic. The prognosis of atherosclerotic coronary artery aneurysm may depend on the morphology of the aneurysm or the presence of coexisting obstructive disease. Coronary artery aneurysms have been also reported to occur after ballon angioplasty, directional athrectomy, laser angioplasty, and stent implantation with a frequency of 2% to 4%. The long-term outcome of post-intervention coronary artery aneurysm is unknown. We report two cases of the development of a coronary aneurysm 6 months after stent implantation as a treatment of severe obsructive coronary artery disease.

Eleven Poems of Park Je-chun

Park Je-chun,Ko Chang Soo(번역자) The Academy of Korean Studies 1992 Korea Journal Vol.32 No.3

심부 매복 정중 과잉치 수술 시 마취방법 선택

민수영,송제선,이제호,최형준,손흥규,김성오 大韓小兒齒科學會 2012 大韓小兒齒科學會誌 Vol.39 No.1

Supernumerary tooth occurs most frequently at premaxilla area. Followed by mandibular premolar area, mandibular fourth molar area, maxillary paramolar area. Mesiodens are mainly impacted in the palatal area and surgical approach is made at palatal side. The time of surgery remains controversial. In case of inverted or horizontal impacted supernumerary tooth, intraosseous tooth movement and vertical growth of premaxilla makes surgical extraction more difficult. And also the more quantity of removed bone is, the higher degree of difficulty is. Inverted mesiodens of these cases were impacted superior to apex level of adjacent permanent incisor. Although CT examination revealed exact location of impacted tooth, surgical procedure including ostectomy may take a long time more than expected. So, before surgical extraction, it’s need to be considered several factors such as necessity of CT taking, degree of difficulty, direction of surgical approach, necessity of general anesthesia etc. 정중 과잉치(mesiodens)는 대개 상악 절치부에서 발견되며, 주로 구개측에 위치하는 경향이 있다. 정중 과잉치의 자연맹 출 가능성이 관찰되면, 주기적으로 검사하여 구강내로 충분히 맹출한 후에 단순발치를 시행한다. 주기적 검사에서 자연맹출 소견이 보이지 않거나, 형태이상 혹은 맹출방향의 이상으로 구강 내로 자연맹출 할 가능성이 없으면, 수술적 제거방법을 고려 해야 할 것이다. 특히, 인접한 중절치나 측절치의 맹출을 방해하고 있는 상황이 관찰된다면, 빠른 시일 내에 과잉치 제거를 위 한 수술적 방법을 시도하는 것이 타당하다. 한편, 외과적 수술의 시기를 늦추는 것을 고려해야 하는 경우도 있다. 정중과잉치가 인접하여 발육중인 정상 치아의 맹출을 방해하지 않는 경우이다. 이때, 삼차원 CT사진을 촬영하여보면, 과잉치 주변으로 영구절치의 치배가 근접하여 성곽처럼 둘러 싸고 있는 것을 볼 수 있다. 미성숙한 치배가 둘러 싸고 있는 상황에서, 무리하게 과잉치를 제거하려고 시도할 경우 인접 치배 를 손상시킬 가능성을 배제하기 어렵다. 이 점을 고려 한다면, 가급적 인접한 치아의 치근이 보다 발육한 후에 수술을 시도하 는 것이 바람직할 것이다. 초등학교 2학년 이상의 어린이들은 외래에서 국소마취하 제거하는 수술방법에 대개 잘 적응하며 고학년이 될수록 보다 수월해진다. 수술시기를 너무 늦추거나, 과잉치가 너무 늦게 발견된 경우 구개측 심부로 깊이 이동한 것을 볼 수 있다. 때로는 과잉치의 위치가 처음부터 심부에 매복되어 있을 수 있다. 이와 같은 경우, 전신마취방법을 생각해 볼 수 있을 것이다. 본 증례는 상악 정중부의 깊은 부위에 역위 매복된 과잉치를 외래에서 국소마취하에 치료를 시도할 때 관찰되는 문제점을 고찰하였고, 전신마취방법을 결정하기 위한 기준을 제시하였다. 심부 매복된 치아의 외과적 발거시 어린이의 행동조절이 가장 큰 문제였으며, 방사선 소견상 과잉치 치관의 위치가 절치의 치근단보다 상방에 위치할 경우 전신마취로 전환 하는 것이 바람직 할 것으로 사료된다.

尖察山의 植生에 關한 植物社會學的 硏究

金喆洙,禹濟昌 木浦大學校沿岸生物硏究所 1991 沿岸生物硏究 Vol.8 No.1

多島海 海上國立公園內의 鳥島群島의 森林에 對한 植生調査는 1989年 6月 1日에서 1989年 8月 31日에 걸쳐 Braun-Blanquet(1964)의 방법으로 實施하였다. 첨찰산의 植生은 1個의 植物群集과 10個의 植物群落으로 區分되었다. 常綠闊葉樹林인 구실잣밤나무-자금우 群集, 붉가시나무-참가시나무 群落, 동백나무 群落, 落葉闊葉樹林인 졸참나무 群落, 굴참나무 群落, 상수리나무 群落, 개서어나무 群落, 소사나무 群落, 常綠針葉樹인 곰솔 群落, 이대 群落, 억새 群落 等으로 分類되었다. 現在植生圖는 植生分類單位와 相關을 基準으로 하여 常綠闊葉樹林인 구실잣밤나무-자금우 群集, 붉가시나무-참가시나무 群落, 동백나무 群落, 落葉闊葉樹林인 졸참나무 群落, 굴참나무群落, 상수리나무 群落, 개서어나무 群落, 소사나무 群落, 常綠針葉林인 곰솔 群落, 草地 이대 群落, 억새 群落 等 11個 單位로 區分하여 제작하였다. Mt. Chomch'al(127˚17′30″-127˚20′00″E and 34˚27′30-34˚30′00″N), was covered with substitutional vegetation according to various human impact such as grazing, cutting for firewood. Phytosociological investigation of this forest vegetation was carried out by Braun-Blanquet's method from June to August, 1989. The forest vegetation was classified into 1 association, Ardisio-Castanopsietum sieboldii and 10 communities, Quercus salicina-Quercus acuta, Camellia japonica, Quercus variabilis, Quercus serrata, Quercus acutissima, Carpinus tschonoskii, Carpinus coreana, Pinus thunbergii, Pseudosasa japonica and Miscanthus sinensis var. purpurascens community. Based on the above classification, the actual vegetation map was drawn in 1:25,000 scale.

PIEZOCONE을 利用한 軟弱地盤 分析에 關한 硏究

류제천,박춘수,정석영 忠南大學校 産業技術硏究所 1995 산업기술연구논문집 Vol.10 No.2

In domestic research, standard penetration test and cone test have been used largely for the investigation of soft ground. But standard penetration test has been developed to apply to sand and its result is under the influence of experimenter's skill. The cone used so far has also experimental limitation in the point that penetration into stiff ground is difficult. Recently Piezocone is used world-wide for the investigation of soft ground. Piezocone makes it possible to get more acculate information upon ground because to add to the function of existing cone, it has that of measuring pore water pressure. In this thesis the result of this research is compared with that of laboratory test in the same area. In the result of study the coefficient of consolidation in the horizontal direction of investigation area is ?? and the mean of the cone factor is 15. There is little difference in the soil classification between by Piezocone test and by existing tests. If Piezocone is continuously studied, revised and amended to be suitable for domestic condition, more correct and pre cise research on soft ground will be possible.

Methicillin내성 포도 구균의 기타 항균제에 대한 감수성

이경수,이제철,설성용 慶北大學校 醫科大學 1991 慶北醫大誌 Vol.32 No.1

A total of 204 strains of Staphylococcus aueus isolates in 1987, 1988, and 1989 were studied for the frequency of methicillin-resistant S. aureus (MRSA) and antimicrobial susceptibility and also were examined for oxacillin screening tst and change of minimal inhibitory concentration (MIC) of methicillin at the various conditions. When S. aureus were incubated on the agar media supplemented with 4% NaCl at 35℃ for 72 hours, 33(16.2%) of 204 strains were resistant to methicillin. In oxacillin screening test, oxacillin resistance was found in 33 (16.2%) of the 204 strains. Compared to the MIC of methicillin, oxacillin screenigng positive strains were not same strains of methicillin resistant S. aureus. Total frequency of MRSA was 24 (11.8%) of 204 strains. The frequencies of MRSA in 1987, 1988, and 1989 were 12 strains (9%), 11 strains (16.9%), and 1 strain(20%), respectively and MRSA increased yearly. All MRSA had multiple antibiotic resistance from 9 to 15 tested antibiotics and resistance to 12 antibiotics was the most predominant. All MRSA were resistant to kanamycin, gentamicin, penicillin and cefoxitin. More than 75% MRSA were resistant to amikacin, cefotaxime, cephalothin, tetracycline, rifampin and erythromycin. All MRSA were susceptible to minocycline, vancomycin and trimethoprim-sulfamethoxazole. More than 75% MRSA strains were susceptible to norfloxacin, ciprofloxacin and doxycycline.

Mycophenolic Acid와 Rapamycin이 흰쥐 사구체 혈관간세포증식과 세포외기질 생성에 미치는 영향

김명수,박제현,하헌주,허규하,서지연,김유선,김혜진,박기일 이화여자대학교 약학연구소 2004 藥學硏究論文集 Vol.- No.14

Background: Excess proliferation and extracellular matrix (ECM) accumulation of mesenchymal cells such as vascular smooth muscle cells (VSMC) and glomerular mesangial cells cause chronic allograft nephropathy showing transplant vascular sclerosis and glomerulosclerosis. Mycophenolic acid (MPA) and rapamycin (RPM) are well known as strong inhibitors of VSMC proliferation, but their effects on the glomerular mesangial cells are not yet clearly understood. This study examined the effects of MPA or RPM on PDGF-induced proliferation and ECM accumulation in rat glomerular mesangial cells. Methods: Mesangial cells isolated from the glomeruli of Sprague-Dawley rats were cultured with DMEM containing 20% fetal bovine serum. Growth arrested and synchronized cells were administered with test drugs (MPA10 nM-10μM, RPM 0.1 nM-1μM) before the addition of PDGF 10 ng/mL. Cell proliferation was assessed by [³H]thymidine incorporation, collagen by [³H]proline incorporation, and fibronectin, ERK, and p38 MAPK by Western blot analysis. Results: PDGF increased mesangial cell proliferation by 4.64-fold. Compared to stimulated control, MPA above 500 nM and RPM above 10nM showed a significant inhibitory effect in a dose-dependent manner. The IC_(50) of MPA and RPM against PDGF-induced mesangial cell proliferation were around 500 nM and 100 nM, respectively. The collagen synthesis was also inhibited by MPA and RPM, but the fibronectin secretion was inhibited by MPA alone. The proliferation of mesangial cell correlated with activation of ERK and. p38 MAPK. MPA, but not RPM, inhibited ERK and p38 MAPK activation. Conclusion: This study demonstrated that MPA and RPM significantly inhibited PDGF-induced proliferation and ECM production in rat glomerular mesangial cells. The inhibitory effects of MPA, but not RPM, are correlated with ERK and p38 MAPK.

뇌하수체 종양 제거술 시행 후 뒤늦게 발생한 횡문근 융해증과 동반된 중추성 열

장제혁,최규남,김일환,노은지,김윤정,유충헌,고정해,박봉수,김태균,권민정,이순희,박정현 인제대학교 2008 仁濟醫學 Vol.29 No.-

Body temperature is controlled by thermoregulatory center of the hypothalamus. We report a case of 24 years old man with central fever. He was subjected to a partial excision of pituitary tumor compressing optic chiasm four years ago. He has received hormonal therapy for panhypothyroidism after removal of pituitary tumor. And He received gamma knife operation for partially contrast-enhancing masses in suprasellar and both hypothalamic areas that is probably postoperatively remnant or recurrent tumor of pituitary adenoma. One year after gamma knife operation, he presented with a febrile syndrome of unknown origin including rhabdomyolysis. All usual investigations proved negative. We diagnosed him as central fever with rhabdomyolysis. He received medical ICU care with cooling bed, ice pack. And his symptom improved. Postoperative hyperthermia may result following resection of the pituitary tumor. When central fever is suspected taking note of past history, a quick recognition of course of fever can help reduce the using of unnecessary antibiotics and hospital stay.

고속가공을 위한 2단계 모션 제어 루프와 선독 알고리즘의 구현

이철수,이제필 韓國工作機械學會 2000 한국생산제조학회지 Vol.9 No.6

This paper describes a look ahead algorithm of PC- NC(personal computer numerical control). The algorithm is based on acceleration/deceleration before interpolation which doesn't include a command error and determines a feedrate value at the end point of each block(or start point of each block). The algorithm is represented as following; 1) calculating two maximum arrival feedrates (F_1, F_2) by an acceleration value, a command feedrate, and the distance of a NC block, 2) get-ting a tangent feedrate (F_3) of the adjacent blocks, 3) choosing a minimum value among these three feedrates, and 4) set-ting the value to a feedrate of a start point of the next block(or a end point of the previous block). The proposed look ahead algorithm was implemented and tested by using a commercial RTOS(real time operation sys-tern) on the MS-Windows NT 4.0 in a PC platform. For interfacing to a machine, a counter board, a DAC board and a DIO board were used. The result of the algorithm increased a machining precision and a machining speed in many short blocks.

조직적스포츠참가가 스포츠태도에 미치는 영향

김규수,이재홍 龍仁大學校 1991 용인대학교 논문집 Vol.7 No.-

The purpose of this study was to compare differences on the sport attitude between athletes and non-athletes among middle school students. Data collected from a questionnaire designed for this study consisted of foreed-choice response to item constructed to represent the operational definitions for each variable. The inventory was administered to 322 athlete(male : 174, female : 148) and 431 non-athletes(male : 218, female : 213) among middle school student in Seoul. To data analysis, statistics employed this study was t-test. Based upon the result of this study, the following conclusion appear warranted. 1. In cases of attitudes on the sparing of time and money, fostering simple thinking and selfish, strengthening the violence, increascing the reasonable competition, strengthening the mental fitness, and cultivating the discipline compared to non-athletes, while non-athletes are more positive than athletes in attitude toward character buliding. 2. Athletes participating in dual sports are more negative than that in individual sports in strengthening the violence, but in the cases of attitudes on the sparing of time and money, fostering simple thinking and selfish, nationalism, strengthening the violence, character building, increaseing the reasonable competition, strengthening the mental fitness, and cultivating the discipline.