내시경적 담석 제거술의 임상적 고찰

문한규,양웅석,유방현,송근암,이동완,허윤 대한소화기내시경학회 1988 Clinical Endoscopy Vol.8 No.2

Endoscopic sphincterotomy (E.S.T.) has relatively low complications and is the theraphy of choice in patients with common bile duct stones. It is also an useful technique for decompression of biliary tract obstruction. Thirty two cases of patients were selected according to opedrative risks: old age, severe jaundice and recurrent or retained bile duct stones after cholecystecomy from 1986 to 1988. The results were as follows, 1) In thirty two cases nf E.S.T., male to female ratio was 1:1.46. Most frequent age was older than 40 years. (male, 84.6%, female, 84.2%). 2) Out of thirty two cases, 20 cases (62.5% were under post clholecystectomy state, 12 eases (37.5%) were obstructive jaundice. 3) Spontaneous stone passage after E.S.T. was 81.3% (26 cases), and total stone remoral rate was 87.5% (28 cases), 4) Complications of E.S.T. were noted in three cases. In the two cases of bleeding, it was spontaneously improved and a case of acute pancreatitis was treated by medical care.

Case Reports : Two Cases of Giant Epidermal Cyst Occurring in the Neck

( Sang Gue Kang ),( Chul Han Kim ),( Hong Ki Cho ),( Mi Youn Park ),( Yoon Jin Lee ),( Moon Kyun Cho ) 대한피부과학회 2011 Annals of Dermatology Vol.23 No.1S

Epidermal cysts are the most common cysts of the skin. A conventional epidermal cyst rarely reaches a size of more than 5 cm in diameter. We report on two cases of giant epidermal cyst occurring in the neck. One patient had a cyst measuring 12×9×9 cm and the other patient had a non-pulsatile, dome-shaped lesion in the neck, which measured 6×5×3 cm. The lesions were totally excised. Histopathologically, both were confirmed as giant epidermal cysts. (Ann Dermatol 23(S1) S135~S138, 2011)

Elevated Aurora Kinase A Protein Expression in Diabetic Skin Tissue

Cho, Moon Kyun,An, Je Min,Kim, Chul Han,Kang, Sang Gue Korean Society of Plastic and Reconstructive Surge 2014 Archives of Plastic Surgery Vol.41 No.1

Background Aurora kinase A (Aurora-A) plays an important role in the regulation of mitosis and cytokinesis. Dysregulated Aurora-A leads to mitotic faults and results in pathological conditions. No studies on Aurora-A expression in human diabetic skin tissue have been reported. In light of this, we explored the expression of Aurora-A in human diabetic skin tissue. Methods Aurora-A protein was evaluated by western blotting in 6 human diabetic skin tissue and 6 normal skin specimens. Results Increased expression of Aurora-A protein was detected in all diabetic skin tissue samples in both western blot analysis and immunohistochemical staining. However, in the case of the normal skin tissue, no bands of Aurora-A protein were detected in either the western blotting analysis or the immunohistochemical staining. Conclusions Thus far, there have been no studies on the expression of Aurora-A in diabetic skin tissue. However, we believe that oxidative DNA damage related to the expression of Aurora-A protein and Aurora-A could be involved inhuman diabetic skin tissue.

Does Fibrin Sealant Reduce Seroma after Immediate Breast Reconstruction Utilizing a Latissimus Dorsi Myocutaneous Flap?

Cha, Han Gyu,Kang, Sang Gue,Shin, Ho Seong,Kang, Moon Seok,Nam, Seung Min Korean Society of Plastic and Reconstructive Surge 2012 Archives of Plastic Surgery Vol.39 No.5

Background The most common complication of latissimus dorsi myocutaneous flap in breast reconstruction is seroma formation in the back. Many clinical studies have shown that fibrin sealant reduces seroma formation. We investigated any statistically significant differences in postoperative drainage and seroma formation when utilizing the fibrin sealant on the site of the latissimus dorsi myocutaneous flap harvested for immediate breast reconstruction after skin-sparing partial mastectomy. Methods A total of 46 patients underwent immediate breast reconstruction utilizing a latissimus dorsi myocutaneous island flap. Of those, 23 patients underwent the procedure without fibrin sealant and the other 23 were administered the fibrin sealant. All flaps were elevated with manual dissection by the same surgeon and were analyzed to evaluate the potential benefits of the fibrin sealant. The correlation analysis and Mann-Whitney U test were used for analyzing the drainage volume according to age, weight of the breast specimen, and body mass index. Results Although not statistically significant, the cumulative drainage fluid volume was higher in the control group until postoperative day 2 (530.1 mL compared to 502.3 mL), but the fibrin sealant group showed more drainage beginning on postoperative day 3. The donor site comparisons showed the fibrin sealant group had more drainage beginning on postoperative day 3 and the drain was removed 1 day earlier in the control group. Conclusions The use of fibrin sealant resulted in no reduction of seroma formation. Because the benefits of the fibrin sealant are not clear, the use of fibrin sealant must be fully discussed with patients before its use as a part of informed consent.

대구지역 금호강 및 주요 지천 퇴적물의 시·공간적 독성변화

정홍배,문성환,정진애,김재현,박정규,배철한,황인영 한국환경독성학회 2001 환경독성보건학회지 Vol.16 No.4

1. 사전에 선정된 공통 조사 정점들 가운데 KㆍH4(금호대교)이후의 퇴적물 독성이 상부의 것보다 크게 나타났다. 즉, 정점 KH3과 KH4, 그리고 KH4와 KH5 사이에 독성물질 유입원이 있는 것으로 판단되었다. 2. 하천 퇴적물의 독성 수준에 영향을 주고 있는 물질의 종류와 배출원 파악이 필요하였다. 이러한 내용을 향후 계속적 연구 및 조사를 통하여 수행되어야 하는 과제라 사료된다. 3. 퇴적물 시료의 채취 시점에 따라서 동일 정점의 독성 변화가 심하였다. 유해화학물질에 의한 오염 수준과 하천 생태계의 영향을 예측하기 위해서는 하천 퇴적물을 대상으로 경시적으로 독성의 변화를 계속 관측하는 것이 필요하다고 판단되었다. In aqueous ecosystems, the level of toxicity is highly responsive dependant to multiple variables, including rainfall, sunlight, pH, adhesion, etc. Because Korea has particularly distinct wet and dry seasons, the toxicity of pollutants in rivers or streams is dependant on the sampling season and time. In order to examine the effects of rainfall on toxicity, sediment samples were collected from five sites along the Keumho river. It was found that Microlox toxicity levels were generally higher during the dry season than the wet season. It indicated that river pollutants are carried off more quickly by the water during the wet season. As a result, it was recommended that the point sources of pollutants of the Keumho river would be placed between KH3 (Paldalgyo) and KH4 (Keumhogyo), KH4 (Keumhogyo) and KH5 (Dasa).

비인강암 환자에서 발생한 경동맥동 과민증후군

윤형규(Hyung Gue Yoon),강진형(Jin Hyung Kang),문한림(Han Lim Moon),채장성(Jang Seong Chae),김훈교(Hoon Kyo Kim),이경식(Kyung Shik Lee),김동집(Dong Jip Kim),이광수(Kwang Soo Lee),윤세철(Sei Chul Yoon),조승호(Seung Ho Cho),서병도(Byung 대한두경부종양학회 1993 대한두경부 종양학회지 Vol.9 No.1

저자들은 극소진행형 비인강암(제 4기, N₄N₂(c)) 환자에서 종양으로 인한 경동맥동 과민증후군과 관련되어 실신이 발생하였으며 방사선치료후 호전된 환자 1예를 경험하였다. The syndrome of carotid sinus hypersensitivity is cardovascular symptom complex including lightheadedness, transient loss of consciousness, perspiration, pallor, weakness of lower extremities, transient hypotension, bradycardia and seizure, which occurs from firing of hyperactive carotid sinus reflex. Most cases are idiopathic, but maliganant tumors involving parapharyngeal space have been occasionally implicated. We present a case of carotid sinus hypersensitivity due to nasopharyngeal carcinoma invading the parapharyngeal space with bilateral cervical lymphnode metastases(stage IV, T₄N₂M(0)). The patient experienced several episodes of severe syncope proceeded by blurring of vision, dizziness and nausea, which were used to occur while he was working in erect position. The tumors were markedly regressed by external radiation therapy with successful resolution of syncope.

구조물의 변형률 측정을 위한 광섬유 TR-EFPI 센서의 개발

최만용,문한규,권일범,김민수 한국센서학회 2000 센서학회지 Vol.9 No.2

Fiber optic TR-EFPI(total reflected extrtinsic Fabry-Perot interferometric) sensor was developed to measure the strain of structures, such as building, bridge, aircraft, etc. It has been difficult to distinguish the increase and decrease of the strain from the conventional fiber optic EFPI sensor because their signals only have a sinusoidal wave pattern related to the change of strain. Also, the absolute strain could not be measured by the simple fiber optic EFPI sensor. In this study, in order to measure the magnitude of strain with the direction of strain, the fiber optic sensor was simply constructed with the total reflected EFPI sensor probe. This probe was manufactured with a single mode fiber and a mirror coated fiber in a silica glass capillary tube. The output signal of this fiber optic TR-EFPI sensor can give the information about the magnitude and the direction of strain. The loading-unloading test was performed by the universal testing machine with alluminum beam specimen to compare the strain from fiber optic TR-EFPI sensor with the value from electrical strain gauge. In the result of this experiment, the strain from fiber optic TR-EFPI sensor had a good agreement with the values from the electrical strain gauge.

원격교육을 위한 확장 가능한 VOD 서버에 관한 연구

문진용(Jin-Yong Moon),박한규(Han-Gue Park),최수영(Su-Yong Choi),윤남균(Nam-Kyun Youn),구용완(Yong-Wan Koo) 한국정보과학회 1999 한국정보과학회 학술발표논문집 Vol.26 No.1B

최근에 정보통신분야의 눈부신 발전은 컴퓨터의 단순한 활용을 넘어서 대학교육 및 운영전체를 정보통신기술 바탕 위에 구축하려는 노력이 우리 나라를 포함한 세계 곳곳에서 진행되고 있다. 학습활동이 교실을 중심으로 이루어지는 전통 교실 학습환경과는 달리 원격교육의 학습환경에서는 학습활동이 첨단정보통신기술을 통해 이루어진다. 이와 같은 원격교육을 위하여 본 논문에서는 원격교육 시스템을 위한 VOD Server에 대하여 연구를 하였다. VOD Server는 디스크 배열과 같은 저장 장치에 대용량의 동영상의 교육자료를 저장한다. Client가 특정 교육자료를 요구하며, VOD Server는 검색된 동영상 교육자료를 검색하여 터미널에게 전송한다. 본 논문에서는 VOD Server 설계 시에 고려되어야할 요구사항을 분석하고 효율적인 VOD Server의 개발에 대한 본 연구실의 기반 연구결과를 기술한다. VOD Server의 프로세스의 생성 · 소멸에 따르는 과도한 오버헤드를 줄이는 방법, 디스크의 부하의 균형을 위한 디스크 할당, 메모리 절약을 위한 실시간 디스크 스케줄링, 마감시간을 고려한 동영상 전달, 그리고 VOD Server 상의 입출력 대역폭과 메모리를 절약하는 동영상 공유에 대해 알아본다.

여고 테니스 우수선수와 비우수선수의 호흡순환기능에 관한 연구

고기준,이재규,김종인,이광무,한재웅,신군수,김태운,안병철,문혜경 釜山大學校 附設 體育科學硏究所 1999 體育科學硏究所 論文集 Vol.15 No.-

The purpose of this study was to evaluate a study on Cardiorespiratory Functions of Elite Tennis Player and Non-Elite Tennis Player in Female High-School. The subjects were included 2 group(each group n=7); Elite Tennis Player group and Non-Elite Tennis Player group. The conclusion of this study was as follows: 1. Elite Tennis Player group showed significantly high in VO2max(p<.001) 2. Elite Tennis Player group showed significantly high in VCO2(p<.001) 3. Elite Tennis Player group showed significantly high in VO2max/kg(p.05)

국내 하천 퇴적물 건강성평가를 위한 Microtox 독성시험 조건확립 연구

정홍배,박정규,문성환,류태권,김소정,배철한,황인영 한국환경독성학회 2001 환경독성보건학회지 Vol.16 No.4

1. 하천 퇴적물 공극수, 증류수 추출용액 및 유기용매 추출액을 pH6.0~6.5 범위로 조절한 후 Microtox 독성을 측정하는 것이 퇴적물내의 암모니아 독성이 배제된, 유해화학물질 오염에 의한 퇴적물 독성을 평가하는 방안임을 확인하였다. 2. 퇴적물에 대해 공극수, 증류수 추출물, 유기용매 추출물 구분하여 Microtox 독성을 구하는 것이 퇴적물 내 유해화학물질의 독성발현 특성을 예측할 수 있는 기법이라고 사료된다. 3. 조사정점 내 시료 채취 지점간 독성에 편차로 인하여, 동일 정점의 반경 50~100m 내에서 최소 4지점 이상의 퇴적물을 확보하는 것이 해당 정점의 독성 대표값을 산출할 수 있는 방안이 된다고 판단된다. 4. 한강수계인 남한강 지천인 복하천과 양화천, 금강수계인 청주 미호천, 대전 갑천, 낙동강수계인 대구 금호강, 영산강수계인 황룡강 그리고 익산 만경강을 대상으로 한 예비 조사한 결과, 집중연구대상 하천으로의 조건은 금호강이 가장 우수하였다. 5. 하천 퇴적물의 증류수 추출액과 유기용매 추출액의 Microtox 독성값 간의 상호 상관성이 높았다. 그러나, 농축 과정이 용이하므로 정점간 비교를 위한 독성 측정시 유기용매 추출액을 사용하는 것이 바람직하다고 사료되었다. Six rivers were selected as preliminary screening sites to determine the test conditions of Microtox in assessing the toxicity of the sediment. In addition, a pH range of 6.0--6.5 was established in testing pore water, aqueous extracts and organic extracts. Each extractable fraction of sediment showed different toxicities. Therefore, in order to properly examine the toxicity in the sediment, all extractable fractions of sediment samples needed to be tested with Microtox. Thus, sediment samples were additionally collected from at least 4 secondary sites within 50~100 m area of the primary sampling site to reduce any variation or deviation in toxicity assessment. From all sediment toxicity data that was collected from this study, it was concluded that the Keumho river was the most polluted with the highest sediment toxicity of all the rivers analyzed and needed further detailed research on its pollution problem.