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최영운,김준기,장지영,Go Tae-Hwa,김광민,배금석,심홍진 대한중환자의학회 2023 Acute and Critical Care Vol.38 No.1
Background The use of intravenous immunoglobulin (IVIG) in sepsis patients from bowel perforation is still debatable. However, few studies have evaluated the effect of IVIG as an adjuvant therapy after source control. This study aimed to analyze the effect of IVIG in critically ill patients who underwent surgery due to secondary peritonitis. Methods In total, 646 medical records of surgical patients who were treated for secondary peritonitis were retrospectively analyzed. IVIG use, initial clinical data, and changes in Sequential Organ Failure Assessment (SOFA) score over the 7-day admission in the intensive care unit for sepsis check, base excess, and delta neutrophil index (DNI) were analyzed. Mortalities and periodic profiles were assessed. Propensity scoring matching as comparative analysis was performed in the IVIG group and non-IVIG group. Results General characteristics were not different between the two groups. The survival curve did not show a significantly reduced mortality in the IVIG. Moreover, the IVIG group did not have a lower risk ratio for mortality than the non-IVIG group. However, when the DNI were compared during the first 7 days, the reduction rate in the IVIG group was statistically faster than in the non-IVIG group (P<0.01). Conclusions The use of IVIG was significantly associated with faster decrease in DNI which means faster reduction of inflammation. Since the immune system is rapidly activated, the additional use of IVIG after source control surgery in abdominal sepsis patients, especially those with immunocompromised patients can be considered. However, furthermore clinical studies are needed.
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빈집 발생에 영향을 미치는 물리적 요인에 관한 연구 - 대구의 구도심 노후주거지인 남산동, 대봉동 중심으로 -
최영운,윤철재 한국문화공간건축학회 2020 한국문화공간건축학회논문집 Vol.- No.72
Currently the house vacancy in the Republic of Korea is increasing due to diverse factors such as aging of the population, decline in population, population outflow to newly established urban regions in addition to the deterioration of the existing residences. Moreover, as these vacant residences negatively affect the overall regional landscape, increase the dissipation of resources and incur public security problems, they are becoming a significant social problem. Thus, as stated above, this study is emphasizing on the problem of vacant residences of the old downtown areas of local small and medium cities, which are emerging as new social problems of the country. In this study there has been preponderantly analyzed the physical factors among the diverse causes of residence vacancy, a factor without any detailed development or references in the precedent studies. There were designated as the spatial scope for the analysis, the towns of Namsan-dong and Daebong-dong, the representative residential districts of Daegu Metropolitan City. The following methodologies were applied for the analysis; firstly, the physical determinants or factors were selected as basic frames. Professional surveys and investigations were implemented to verify if the factors from precedent studies and other additional factors were relevant to the occurrence of vacant residences. Through this process the conclusive physical factor could be selected.Secondly, the data on distribution of vacant residences has been established through the GIS and the investigation on vacant residences. Based on the distributive analysis on vacant residences, the region with maximum concentration of vacant residences has been deduced and therefore the respective region has been selected as the target area of the study. And finally, the logistics regression analysis has been implemented to verify if the physical factors which were deduced throughout the aforementioned processes had practical and significant influences on the occurrence of vacant residences. As the result of this empirical/actual analysis, a total of five (5) factors such as 'Extensive blocks and roads', Direction of location', 'Road adjacency', 'Number of stories of buildings' and the 'Form of the blocks' had significant influences on the occurrence of vacant residences. Through this study, it has been verified that the analysis on physical factors which produce residence vacancy is effective for anticipative prevention of residence vacancy, to forecast the potential region in which the residence vacancy might occur, and to monitor such region.
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Clinical Characteristics of Primary Epiploic Appendagitis
최영운,최평화,박용환,김재일,허태길,박제훈,이명수,김철남,장석효,서정욱 대한대장항문학회 2011 Annals of Coloproctolgy Vol.27 No.3
Purpose: Primary epiploic appendagitis (PEA) is a rare cause of an acute abdomen. It can be clinically misdiagnosed as either diverticulitis or appendicitis on clinical examination because the clinical symptoms and signs of PEA are non-specific. The present study was performed to describe the clinical characteristics of PEA and to assess the differences between PEA and diverticulitis. Methods: We reviewed the clinical records and radiologic findings of 31 consecutive patients with PEA and compared them with those of patients with diverticulitis without complications. Results: In most cases, abdominal pain was localized to the right (13 cases, 41.9%) or left (13 cases, 41.9%) lower quadrants. Gastrointestinal symptoms such as nausea and vomiting were infrequent, and localized tenderness without peritoneal irritation was common. All patients were afebrile, and only 4 patients (12.9%) showed leukocytosis. In all cases except one, a pericolic fatty mass with a hyperattenuated ring was observed on computed tomography. Patients with left PEA were younger than those with diverticulitis (41.4 ± 11.9 vs. 69.7 ± 13.3, P < 0.001), and the mean body mass index was higher in patients with left PEA (26.4 ± 2.9 vs. 22.6 ± 3.4, P = 0.01). Whereas one patient (6.7%) with left PEA showed leukocytosis, the incidence of leukocytosis in patients with diverticulitis was 80% (8/10) (P < 0.001). Conclusion: In patients with an acute abdomen showing localized tenderness without associated symptoms or leukocytosis,a high index of suspicion for PEA is necessary. For correct diagnosis and proper management, it would useful for surgeons to be aware of the computed tomographic findings and the natural course of the disease.
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도망층이 글라스 아이오노머 시멘트의 결합강도에 미치는 영향
최영운,김교한,김영진 大韓小兒齒科學會 1992 大韓小兒齒科學會誌 Vol.19 No.2
상아질 표면 거칠기, 도말충, 표면처리제 효과 등이 글라스 아이오노머 시멘트의 유치 상아질에 대한 결합력에 미치는 영향을 알아보고자 표면 거칠기 측정, 결합 강도 측정, 표면 처리 후 및 결합 강도 측정 후 파단면 표면 양상을 관찰한 결과 다음과 같은 결과를 얻었다. 1. 표면 거칠기는 대조군 carbide bur 마무리 군, diamond bur 마무리 군 순으로 거칠게 나타났으며 (P<0.05), 표면처리네 처리시 전체적으로 표면이 평활해 졌으나, 역시 같은 순서의 거칠기를 보였다. 2. 글라스 아이오노머 시멘트의 상아질에 대한 결합 강도는 diamond bur로 마무리한 군에서 가장 낮았으며 (P<0.05), 600 grit silicone carbide paper와 표면 처리제를 함께 사용한 군에서 가장 높게 나타나 (P<0.05), 표면이 거칠수록 결합 강도가 낮아지는 경향을 보였다. 3. 마무리 술식 후 상아질 표면 양상은 diamond bur 마무리 군에서 표면 굴곡이 가장 심하고, 많은 양의 도말층이 관찰되었으며, 모든 군에서 표면 처리제 처리시 굴곡이 완만해지고 도말층이 제거되었으나, smear plug는 남아 있는 양상을 보였다. 4. 시편 파절면 양상 관찰 결과, 결합 강도가 클수록 응집성 파정을, 작을수록 부착성 파절의 양상을 나타내었다. The purpose of this study was to evaluate the effects of the dentin surface roughness, smear layer and surface conditioner on the bond strength of a glass ionomer cement in dentin of primary teeth. So, the surface roughness after various treatment, tensile bond strength, and surface texture of dentin surface before and after fracture were examined. The result of this study were as follows : 1. The surface roughness valre was the highest in diamond bur group, next came the carbide bur group, control group (P<0.05). By the treatment of surface conditioner, the roughness values were deacreased in the same order. 2. The tensile bond stregth was the lowest in diamond bur group (P<0.05). and the highest in 600 grit silicone carbide paper and conditioner treated group (P<0.05). And, the rougher the dentin surface, the lower the bond strength was observed. 3. The dentin surface after finishing procedure, the grinding groves and the smear layer were the most prominent in diamond bur group. And in every group, surface were smoothened and smear layers were removed with the treatment of surface conditioner, but smear plugs were remained. 4. On the fractured dentin surfaces, as the bond strength increased, the more cohesive fracture pattern was examined, and as the bond strength decrease the more adhesive fracture pattern was examined.
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최영운 ( Young Woon Choi ),한두봉 ( Doo Bong Han ) 한국농업경제학회 2015 農業經濟硏究 Vol.56 No.2
The objective of this study is to analyze the effect of free meal service program for low-income elderly people using the 4th and 5th KNHNES(Korea National Health and Nutrition Examination Survey) data collected during 2007-2012. We analyzed body mass index(BMI), hemoglobin level(Hb) and nutrient intakes between user group and nonuser group in free meal service for low-income eldery people. In order to reduce selection bias, both PSM (Propensity Score Matching) and CEM (Coarsened Exact Matching) methods were used. According to the matching results, treatment group had lower intakes of calcium and several essential nutrients than control group. This implies that free meal service program didn’t contribute to improve nutritional status of low-income elderly people.
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