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      • SCOPUSKCI등재

        Case Report : Improved severe hepatopulmonary syndrome after Liver transplantation in an adolescent with end-stage Liver disease secondary to biliary atresia

        ( Tae Jun Park ),( Keun Soo Ahn ),( Yong Hoon Kim ),( Hyungseop Kim ),( Ui Jun Park ),( Hyoung Tae Kim ),( Won Hyun Cho1 ),( Woo Hyun Park ),( Koo Jeong Kang ) 대한간학회 2014 Clinical and Molecular Hepatology(대한간학회지) Vol.20 No.1

        Hepatopulmonary syndrome (HPS) is a serious complication of end-stage liver disease, which is characterized by hypoxia, intrapulmonary vascular dilatation, and liver cirrhosis. Liver transplantation (LT) is the only curative treatment modality for patients with HPS. However, morbidity and mortality after LT, especially in cases of severe HPS, remain high. This case report describes a patient with typical findings of an extracardiac pulmonary arteriovenous shunt on contrast-enhanced transesophageal echocardiography (TEE), and clubbing fingers, who had complete correction of HPS by deceased donor LT. The patient was a 16-year-old female who was born with biliary atresia and underwent porto-enterostomy on the 55th day after birth. She had been suffered from progressive liver failure with dyspnea, clubbing fingers, and cyanosis. Preoperative arterial blood gas analysis revealed severe hypoxia (arterial O2 tension of 54.5 mmHg and O2 saturation of 84.2%). Contrast-enhanced TEE revealed an extracardiac right-to-left shunt, which suggested an intrapulmonary arteriovenous shunt. The patient recovered successfully after LT, not only with respect to physical parameters but also for pychosocial activity, including school performance, during the 30-month follow-up period. (Clin Mol Hepatol 2014;20:76-80)

      • 안면경련의 침구치료에 대한 문헌적 고찰

        조현석,장준혁,김경호,윤종화,김갑성 동국대학교 한의학연구소 1999 東國韓醫學硏究所論文集 Vol.7 No.2

        편측 안면경련은 편측 안면근의 불수의적, 간헐적 수축으로서 심할 경우 안면 근력 약화 및 강직현상등이 나타나기도 하는 질환이다. 서양의학에서 편측 안면경련의 병태생리에 대한 가설은 크게 두가지로 대별되는데, 첫째는 중추성 가설(핵가설)이고, 둘째는 말초성가설이다. 치료방법은 대별하여 내과적 치료와 외과적 치료의 나눌 수 있는데, 외과적 치료가 다양하게 시행되어 왔으며, 근래에는 두개강내 미세혈관 감압술이 시행되고 있다. 韓醫學에서는 眼瞼痙攣울 眼胞振跳, 胞輪振跳라고 하고, 眼眉跳라고도 하며, 그 외 目瞬, 目跳, 眼皮跳 등의 이름으로도 불리운다. 外因으로는 風邪가 經絡에 侵入하는 것이며, 內因으로는 肝血虛한 中의 風邪가 兼하기 때문이다 따라서, 국부경혈 자침과 함께 장부변증에 따라 肝, 膽經 경혈의 사용과 합께 耳鍼T의 시술이 유용할 것으로 사료된다. Hemifacial spasm including blepharospasm is characterized by spontaneous clonic and tonic muscle spasm on one side of the face with synkinesis. Though the etiology of hemifacial spasm is not entirely understood, generally there are two. One is nuclear hypothesis and the other is peripheral hypothesis. There are two ways of treatment of hemifacial spasm. One is internal medicine and the other is operative method. In oriental medicine, hemifacial spasm is very similar to diseases such as Anpojindo(眼胞振跳), Poryunjindo(胞輪振跳), or Anmido(眼眉跳) in symptoms. The diseases such as Anpojindo(眼胞振跳), Poryunjindo(胞輪振跳), Anmido(眼眉跳) is related to the function of liver(肝) and risk factors are regarded as Pung(風). The acupuncture therapy of hemifacial spasm is based on Liver meridian(LV), Gallbladder meridian(GB), And ear-acupuncture is recommended as a good method for hemifacial spasm.

      • 프로축구 선수들의 포지션별 유산소성 파워능력과 슬관절 등속성 근 기능의 특성

        조현철,김준호,강민철,김종규 龍仁大學校 體育科學硏究所 2004 體育科學硏究論叢 Vol.14 No.1

        The purpose this study was to investigate the aerobic power and isokinetic muscular function of knee joint for korea the pro-soccer players in field position. Data were obtained from thirty one pro-soccer players. They didn't have any medical problem. They performed exercise stress test and isokinetic muscular function on treadmill and Isomed 2000. The assessment of cardiorespiratory and isokinetic muscular function were VO2max, Maximal heart, ATVO2, AT heart rate, Total Work, Average Work, Maximum Torque, Maximum Work and Flex/Ext. A two-way analysis of variance with repeated measures(two-way(2x4)RM ANOVA) was used to compare group and field position differences aerobic power and isokinetic muscular function. A Tukey post hoc test was used when significant mean differences were observed. Statistical significance was accepted as p<O.05. Aerobic power do not showed any significant difference among in field position. Hamstring muscle power was significantly higher in Forward and Middle field than Defense and Goal keeper. Muscular endurance was higher Defense and Goal keeper than Forward and Middle field. Based on the facts that we have discussed, aerobic and anaerobic power in field position do not showed any difference. However, isokinetic muscular function was significant difference in field position. Ratios of conventional and functional for isokinetic Hamsting: Quadriceps muscle strength in soccer player for prediction and decision injures, it is thought that more researches on it should be required.

      • Al-Cu-Mg合金의 時效析出에 미치는 豫備時效의 影響

        趙顯麒,洪俊杓,全在英 경북대학교 공과대학 1983 工大硏究誌 Vol.12 No.-

        The influences of preageing on age-precipitation in Al-2.02t% Cu-1.1wt% Mg alloy have been investigated by means of measurements of hardness, tensile strength and electrical resistivity and transmission electron microscopy. The results obtained are summarized as follows. The two-step aged alloy is more age-hardenable than the onestep aged alloy in early stage of ageing. It is because of the formation and growth of solute atom cluster and GPB zones. The maximum hardness and strength of the alloy aged 200℃ is obtained by preaged at 100℃. It is because of fine and dense distribution of S'metastable phase. The hardness and strength are remarkably decreased with sufficient ageing time after preageing at room temperature and 170℃. It is because of the formation and coarsening of S'metastable phase by the preageing.

      • 상 요추 추간판 탈출증의 수술적 치료

        조태현,송준혁,김명현,박향권,김성학,신규만,박동빈 梨花女子大學校 醫科大學 醫科學硏究所 2000 EMJ (Ewha medical journal) Vol.23 No.3

        Objectives : Lumbar disc herniations at the L1-L2, L2-L3, and L3-L4 level are rare. The purpose of this study is to observe the variable clinical finding of upper lumbar disc herniations and to provide proper treatment modality. Patients and Methods : Between 1998 Jan. and 1999 Dec., seventeen patients with upper lumbar disc herniations who were undergone surgery in our institute were retrospectively evaluated. Patients were evaluated based on following factors : age, sex, aggravating factor, symptoms and signs type of disc herniation, type of surgery, and outcome of post-surgery. Results : The incidence of lumbar disc herniation at the level of L1-2, L2-3 and L3-4 is 6.1% with declining frequency as the level ascends. The peak age incidence is 6th decade in both sex. Preoperative symptomes and signs are variabe. In sixteen cases, posterior approach was done. In these cases, twelve cases were performed microscopic partial hemilaminectomy, and four cases with spinal stenosis were performed total laminectomy and posterior screw fixation with bone fusion. In one case, lateral extracavitary approach was done. In results of operation, fourteen cases showed more than good grade(82%). Conclusion : The age incidence of lumbar disc herniations at the level of L1-2, L2-3 and L3-4 older than lumbar disc herniations at the lower level of L4-5 and L5-S1. The signs and symptoms are variable. In our cases, most of the patients were performed posterior approach with microscopic partial hemilaminectomy except the patients combined spinal stenosis. One case was performed a lateral extracavitary approach because the risk of the cord and cauda equina injuries. The prognosis of upper lumbar disc herniations after treatment with only microscopic partial hemilaminectomy and diskectomy is comparable with the prognosis of lumbar disc herniations at the lower level.

      • KCI등재

        복합레진의 표면거칠기에 따른 투명도와 표면 색상의 차이에 관한 연구

        조규정,박수정,조현구,김동준,황윤찬,오원만,황인남 大韓齒科保存學會 2006 Restorative Dentistry & Endodontics Vol.31 No.4

        본 연구는 복합레진의 표면 연마에 의한 표면 거칠기가 표면 색상과 투명도에 어떤 영향을 미치는가를 알아보고자 시행하였다. Charisma (Heraeus Kulzer GmbH, Domagen, Germany)의 B1과 A3, Esthet-X (DENTSPLY Caulk, Milford, USA)의 B1과 B3 레진으로 거칠기에 따른 표면 색상을 평가하기 위한 직경 8㎜, 두께 5㎜의 시편을 제작하고, Sof-Lex finishing & polishing system(3M, ESPE Dental Products. St. Paul USA)의 C, M, F, 및 SF 디스크로 시편의 한쪽 면을 연마하였으며, 연마 전 Mylar strip으로 압축된 면을 대조군으로 하였다. 거칠기에 따른 투명도의 차이를 평가하기 위한 두께 1 ㎜의 시편을 Charisma의 A3로 제작하여, 한쪽 면을 600, 1000, 1500 및 2000번 사포로 연마하였다. 각 시편의 연마 전과 후, 연마면의 CIE L^(*)a^(*)b^(*)값과 1 ㎜ 시편의 백색과 흑색 배경판 상에서의 Y값을 spectrophotometer인 Spectrolino (GretagMacbech, Regensdorf, Switzerland)를 사용해 측정 분석하였으며, 각 시편의 연마 전과 후의 평균 표면 조드 (Ra)값을 Surface Roughness Tester SJ-301 (Mytutoyo, Tokyo, Japan)로 측정했다. L^(*)값은 재료와 색상에 상관없이 가장 거친 Sof-lex C 디스크로 연마한 군에서 가장 높은 값을 보였으며 (p < 0.05). Esthet-X B3군을 제외한 모든 군에서 Ra값이 감소함에 따라 L^(*)값도 낮아졌다. a^(*)값은 표면 거칠기에 따라 특정한 변화 양상을 보이지 않았으며, b^(*)값은 Esthet-X B1군을 제외한 모든 군에서 Sof-lex SF 디스크로 연마 시 가장 높은 값을 보였으며 (p < 0.05), Charisma B1과 Esthet-X B3군에서 Ra값과 비교적 높은 상관 관계를 보였다. Contrast ratio는 1000번과 1500번 사포로 연마한 군간을 제외한 모든 군 간에 유의한 차이를 보여으며 (p < 0.05). 표면 거칠기가 감소함에 따라 contrast ratio도 감소하였다(R2 = 0.801). The objectives of this were to evaluate the effect of surface roughness on the surface color and translucency of the composite reins. Two composite resins (Esthet-X, Dentsply, Milford, USA and Charisma, Kulzer, Domagen, Germany) were used to investigate the surface color. Charisma was used to investigate the translucency. 40 disc samples (diameter: 8 ㎜, thickness: 5 ㎜) were made by each product to measure the surface color. Ploymerized each sample's one side was treated by Sof-Lex finishing and polishing system (Group C, M, F, SF). 40 disc samples (diameter: 6 ㎜, thickness: 1 ㎜) were prepared to measure the opacity. 1 ㎜ samples were ground one side with #600, #1000, #1500 and #2000 sandpapers. CIE L^(*)a^(*)b^(*) values of each 5 ㎜ thickness samples, and XYZ values of 1 ㎜ thickness samples on the white and black background were measured with spectrophotometer (Spectrolino, GretagMacbeth, Regensdorf, Switzerland). Mean surface roughness (Ra) of all samples before and after surface treatment was measured using the Surface Roughness Tester SJ-301 (Mytutoyo, Tokyo, Japan). Regardless of type and shade of the composite resin, L^(*) values measured in group C were higher than others (p < 0.05), and L^(*) value decreased as the Ra value decreased except B3 shade of Esthet-X. But there were no significant difference in a^(*) values among groups. In control group and SF, highest b^(*) values were measured (p < 0.05), except B1 shade of Esthet-X. Contrast ratio decreased as the Ra value decreased (p < 0.05). With the above results, difference of surface roughness has influence on surface color and translucency of dental composite resins. 〔J Kor Acad Cons Dent 31(4):312-322, 2006〕

      • 장기간 댄스스포츠가 호흡순환 기능 및 심폐지구력에 미치는 효과

        조현철,김준희,한주희 龍仁大學校 體育科學硏究所 1998 體育科學硏究論叢 Vol.8 No.1

        The purpose of this study was to evaluate the effects in respire-circulatory function and cadio-pulmonary endurance capacity. Twelve females(trained 6, untrained 6) participated in dancesport program that is 90min/day, 2day/week for 20weeks. The results were obtained as follow : 1. No significant difference was found in heart rate, ventilation and respiration rate among pretest, after 10 weeks and 20 weeks of dance program and between trained and untrained group. 2. Significant differenced was found in VCO₂between pretest and 20Weeks later in untrained group. 3. There was significantly increased VO₂max in 20 weeks dance program later compared with pretest and significant difference between groups. 4. There was no significant difference in ventilatory threshold and exercise time was not significant difference among trials and between groups. Conclusively, respiro-circulatory function and cardio-pulmonary endurance capacity were not changed at submaximal stage of excise test but those were significantly increased at maximal of exercise test during 20 weeks. Therefore, it is suggested that long term dancesport exercise program is expected more effective on the repiro-circulation function and cardio-pulmonary endurance capacity.

      • 인터넷마케팅과 관광축제정보분석

        조현준,이훈 한국문화관광학회 2001 문화관광연구 Vol.3 No.1

        The purpose of this study was to analyze official web sites of major festivals using internet marketing approach. Contents analysis of each web site was examined by the 4ps marketing techniques, festival product, festival price, festival place, and festival promotion. While most web sites prepared the festival product information, other information was not enough. In special, price information and festival promotion of the web sites should be needed and added in order to invite potential festival visitors. Some implications were suggested to develop the Internet web sites.

      • Er:YAG laser 조사에 의한 치은연하치석 제거효과

        조인구,김영준,김병국,정현주 전남대학교 치의학연구소 2002 구강과학 Vol.14 No.3

        The purpose of this in vitro study was to evaluate the efficiency of Er:YAG laser on calculus removal and the morphologic changes and hardness of the irradiated surface at different power settings. This experiment used human teeth which were extracted due to periodontal disease and had a band of calculus. Forty root slabs (5x5mm^2) were made and divided into control group and irradiated groups. Experimental groups were as follows;Control group (root planing), Group 1 (irradiated with laser at 30mj), Group 2(irradiated with laser at 60mJ). and Group 3(irradiated with laser at 100mJ). Twelve root slabs embedded in resin block were used in each group. Er:YAG laser was applied under water irrigation with the tip held perpendicular to the root surface in contact mode. The treatment time was measured until the calculus was removed completely under naked eyes. The efficiency of calculus removal was evaluated by the time for removal. Morphological changes of laser irradiated site were observed under SEM and the surface hardness was measured using a VH tester. The results were as follows; 1. The efficiency of laser scaling was increased with increasing the energy level of irradiation. (p<0.05) 2. The morphological changes such as carbonization, crater and scale-like defects in the irradiated root surface were frequently observed with increasing the energy level. 3. The surface hardness tended to increase at 60mJ and 100mJ irradiated groups than that of control group. From the results evaluting on the efficiency, morphological change, and surface hardness, lower energy level was suggested f'or the clinical application of the Er:YAG laser in scaling.

      • KCI등재

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