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박치영,강지은,박상곤,김상현,김형선,정춘해 朝鮮大學校 附設 醫學硏究所 2007 The Medical Journal of Chosun University Vol.32 No.2
Background: Autoimmune hemolytic anemia (AIHA) is a very uncommon disorder with the incidence between one and three cases per a hundred thousans a year. There have been very few studies about AIHA in Korea because of its low incidence. Most AIHA studies in Korea were about case history. The aim of this study was to review the clinical features, therapy and outcome of AIHA patients in single institution clinic. Methods: We reviewed retrospectively the medical records of AIHA patients from December 2002 to December 2006. Results: Twelve patient with AIHA were identified, and their median age was 49 years (range 27-75). Male to female ratio is 9:3. The median hemoglobin level was 5.0 g/㎗ (range 2.5-8.2). Warm type AIHA was most common (8/12), cold type was three, and mixed type was one. There was histories of associated disease in six patients. Two patients were complicated by systemic lupus erythematosus and mycoplasma infection and one patient by idiopathic myelofibrosis and solid tumor. Oral steroid was used as the first-line treatment in nine patients. An initial response was observed in eight patients with complete response. One patient had not responded to the initial steroid treatment, and then showed complete response with rituximab. Two relapsed patients were treated with rituximab and partial splenic embolization. Conclusion: The majority of patients can be treated with steroid. Rituximab can improve the response rate in relapsed and refractory AIHA.
박승국,허정욱,강영우,안성훈,이상곤 啓明大學校 醫科大學 1993 계명의대학술지 Vol.12 No.2
저자들은 1981년부터 1990년사이에 64,207명을 대상으로 내시경검사를 시행하여 8,814명에서 소화성궤양을 진단하여 다음과 같은 결론을 얻었다. 소화성궤양의 발생률은 13.7%였다. 위궤양과 십이지장궤양의 발생비는 1981년에는 1:0.9였으나 그후로는 1:1.1-1:1.5로 십이지장궤양의 발생비율이 높았다. 발생비율을 남녀별로 보면 위궤양의 경우에는 약 4:1 십이지장궤양은 3:1로 남자에서 많았다. 연령별로는 위궤양은 40대, 50대, 60대의 순서였고, 십이지장궤양은 30대, 40대, 20대 순으로 호발하였다. 위궤양은 위체부에서 대부분 발생하였다. In this century, very striking changes in incidence and prevalence of peptic ulcers, as well as in sexual proportion, in the age of the affected population and in the proportion of duodenal to gastric ulcers had occured and these epidemiological changes are ongoing. Therefore, we reviewed 8,814 cases with endoscopically proven peptic ulcers from 1981 to 1990. The results obtained are as follows; The prevalence of peptic ulcers among patients received endoscopy was 13.7%. The ratio of peptic ulcers among patients received endoscopy was 13.7%. The ratio of gastric ulcer to duodenal ulcer was 1: 0.9 in 1981, but after then the propotion of duodenal ulcer was higher in 1: 1.1-1:1.5. The ratio of male to female was about 4:1 in gastric ulcer and 3:1 in duodenal ulcer. The prevalence of gastric ulcer was highest in foruth decade and then fifth and sixth in order and the prevalence of duodenal ulcer was highest in thrid decade and then fourth and second decade in order. Most of the gastric ulcers were found at the gastric body.
박현식,조영곤,박병철,김종욱,최희영,김종진,진철희,유상훈,기영재 大韓齒科保存學會 2004 Restorative Dentistry & Endodontics Vol.29 No.3
The purpose of this study was to evaluate the effect of immediate or delayed composite resin filling on dentinal microtensile bond strength (μTBS) after applied the adhesive. The coronal dentin of human third molars was exposed. Single-Bond or One-Step was applied on the dentin surfaces, and composite resin were constructed immediately (group 1) or 5 min., 10 min., 15 min., 20 min. and 30 min. (groups 2-6) after an adhesive was applied. The specimens were sectioned and made bar-shaped. Each surface area of them was about l ㎟. The RBS test was performed by EZ test. The results were analysed by One-way ANOVA and Tukey's test at 95 % significance level. The results suggested that the μTBS of Single-Bond to dentin was decreased when the composite resin was constructed 20 min. and 30 min. after Single-Bond was applied. But the μTBS of One-Step was not affected by delayed composite resin filling.
박인국,조대성,이상곤 東西大學校 2001 동서논문집 Vol.7 No.-
In this paper, we suggest a efficient image data encryption algorithm and implement it. It has been suggested a lot of algorithm for image data encryption, but most of then doesn't give comprehensible encrypted image. Our algorithm can control the degree of degradation, so it gives the controlablity of comprehension of the encrypted image. Our algothm can be commercialy applicable to the image selling.
박상문,박준석,류명곤,김갑득,송화식,김종완 大韓應急醫學會 1998 대한응급의학회지 Vol.9 No.4
Diagnostic peritoneal lavage is a accurate and safe method confirming the intraabdominal injury with head trauma, unstable multiple injuried patients. But the development of imaging technique and the trend in noninvasive diagnostic value is decreasing now. In the emergency room, the emergency physicians are required the rapidity and accuracy in intial assessment and the decisions for the operation or not. So emergency physicians have been investigating the diagnostic method for intraabdomial injury that is more rapid, safe and accurate. Many diagnostic tools are developed and now accepted and used widely, among them the diagnostic peritoneal lavage is still the best method for unsatble or head injuried patients. But the positive diagnostic criterias are variable by many authors and still remain imperfectly. So our study was reviewed by medical record of patients who were undertaken the diagnostic peritoneal lavage for the diagnosis intraabdominal injury and statistical analysis was done compared with many criteria of red blood cell and white blood cell for the more accurate way. A retrospective study of diagnostic peritoneal lavage was done of 90 patients with blunt abdominal trauma during 2 years from January, 1996 to December, 1997 and summerized our experience. The results were as follows; 1) There are 73 males and 17 females in sex. The most common type of injury was the traffic accident. 2) With many variable criteria of RBC and WBC, the accuracy and the false positive and false negative were not different in statistical results. The average accurracy was 80.1%. 3) The operations were done in 30(33.3%) cases, and the most frequent injuried organ was the small bowel, 20 cases(66.7%).