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흉부둔상환자에서 인공호흡기 관련 폐렴환자의 임상적 분석
오중환 ( Joong Hwan Oh ),박일환 ( Il Hwan Park ),변천성 ( Chun Sung Byun ),배금석 ( Geum Suk Bae ) 대한외상학회 2013 大韓外傷學會誌 Vol.26 No.4
Purpose: Prolonged ventilation leads to a higher incidence of ventilator-associated pneumonia (VAP), resulting in weaning failure and increased medical costs. The aim of this study was to analyze clinical results and prognostic factors of VAP in patients with blunt chest trauma. Methods: From 2007 to 2011, one hundred patients undergoing mechanical ventilation for more than 48 hours were divided into two groups: a VAP-negative group, (32 patients, mean age; 53 years, M:F=25:7) and a VAP- positive group, (68 patients, mean age; 60 years, M:F=56:12). VAP was diagnosed using clinical symptoms, radiologic findings and microorganisms. The injury severity score (ISS), shock, combined injuries, computerized tomographic pulmonary findings, transfusion, chronic obstructive lung disease (COPD), ventilation time, stay in intensive care unit (ICU) and hospital stays, complications such as sepsis or disseminated intravascular coagulation (DIC) and microorganisms were analyzed. Chi square, t-test, Mann-Whitney U test and logistic regression analysies were used with SPSS 18 software. Results: Age, sex, ISS, shock and combined injuries showed no differences between the VAP - negative group and - positive group (p>0.05), but ventilation time, ICU and hospital stays, blood transfusion and complications such as sepsis or DIC showed significant differencies (p<0.05). Four patients(13%) showed no clinical symptoms eventhough blood cultures were positive. Regardless of VAP, mortality-related factors were shock (p=0.036), transfusion (p=0.042), COPD (p=0.029), mechanical ventilation time (p=0.011), ICU stay (p=0.032), and sepsis (p=0.000). Microorgnisms were MRSA(43%), pseudomonas(24%), acinetobacter(16%), streptococcus(9%), klebsiela( 4%), staphillococus aureus(4%). However there was no difference in mortality between the two groups. Conclusion: VAP itself was not related with mortality. Consideration of mortality-related factors for VAP and its aggressive treatment play important roles in improving patient outcomes.
Immigration, Cultural Adjustment, and Work Values
Oh, Joong-Hwan(오중환) 서울대학교 사회발전연구소 2011 Journal of Asian Sociology Vol.40 No.2
This study addresses the significance of acculturation, known as cultural adjustment, in examining work values among Korean female nail care workers in New York. In this study, acculturation is measured by both English proficiency and personal comfort in the mainstream cultural comfort, while four indicators are used to measure work values: the subjective evaluation of the nature of the work, both perceptions of occupational status and self-development, and the consideration of quitting the current nail job. Using a sample of 312 responses, this study shows that nail care workers have evaluated the nature of the nail care work less devalued as they experience improvements in English proficiency and cultural comfort. Second, this study also supports that cultural comfort plays a positive effect on their perception of nail care work as an employment sector in a upper-middle or upper occupational status. Moreover, there is evidence that more cultural comfort tends to lower their intention of quitting the nail care job. However, this study suggests that acculturation has little to do with perception of self-development in nail care work.
반하백출천마탕(半夏白朮天麻湯)이 Doxorubicin에 의해 유발(誘發)된 독성(毒性)에 미치는 영향(影響)
김봉석,오중환,임희용,백정한,박치상,김상찬,변준석,황희정,Kim Bong-Suk,Oh Jung-Han,Lim Hee-Yong,Beak Jung-Han,Park Chi-Sang,Kim Sang-Chan,Byun Joon-Seok,Hwang Hui-Jeung 대한한방내과학회 2003 大韓韓方內科學會誌 Vol.24 No.2
Object : The effect of Banhabakchulchunma-tang extracts on the hepatic, splenic and cardiac toxicity induced by Doxorubicin administration(Three injection protocol) were monitored using male ICR mice. Methods : The changes of body weight, clinical signs, necropsy findings and organ weights of liver, spleen and heart were observed with blood GOT and GPT levels. Results : 1. Decrease of body weight and The degrees of anorexia, ataxia and dehydration after Doxorubicin treatment were dose-dependently inhibited by Banhabakchulchunma-tang extracts. 2. Increase of absolute and relative liver and heart weight observed in Doxorubicin treatment group were dose-dependently inhibited by Banhabakchulchunma-tang extracts. In addition, the degrees of liver congestion necrotic spot and the degrees of heart congestion enlargement were dose-dependently decreased after Banhabakchulchunma-tang extracts dosing groups compared to that of doxorubicin treatment group. It is also demonstrated that elevated serum GOT and GPT levels in doxorubicin treatment group were significantly decreased in Banhabakchulchunma-tang extracts dosing groups. 3. Decrease of absolute and relative spleen weight observed in doxorubicin treatment group were dose-dependently inhibited by Banhabakchulchunma-tang extracts. In addition, the degrees of splenic atrophy were significantly and dose-dependently decreased after Banhabakchulchunma-tang extracts dosing groups compared to that of doxorubicin treatment group. Conclusion : the toxicity of doxorubicin treatment(decrease of body weights, clinical signs such as anorexia, ataxia and dehydration, changes of organ weights of liver, spleen and heart, elevation of serum GOT and GPT levels) was inhibited and/or prevented by Banhabakchulchunma-tang extracts. According to these results, it is considered that Banhabakchulchunma-tang has some preventive effect against to doxorubicin induced toxicity.
Status of Discarded Home Electric Appliances Treatment
정헌생,오중환,황연,조영수,Chung, H. S.,Oh, J. H.,Hwang, Y.,Cho, Y. S. The Korean Institute of Resources Recycling 1994 資源 리싸이클링 Vol.3 No.2
발생량이 급증추세에 있어, 이들의 처리가 심각한 사회문제로써 대두되고 있는, 대형 폐가전제품에 대한 발생량 추이, 구성재료, 회수 및 재활용에 대한 국내현황에 대하여 기술하였다. Rapid increases of bulky home electric appliances such as televisions, refrigerators, washing machines, etc are about to create many problems in their waste management in Korea. This paper summarizes the present status of the discarded appliances treatment including the estimations of their quantity, constituent materials, and recyclings.