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오염된 0.5% 클로르헥시딘 수용액 제품과 관련된 Burkholderia cepacia 가성균혈증의 반복 유행
고수희,안혜선,방지환,박상원 대한의료관련감염관리학회 2017 의료관련감염관리 Vol.22 No.1
Background: Burkholderia cepacia is one of the key pathogens involved in the nosocomial outbreaks via contaminated supplies. We describe here an experience of recurrent B. cepacia pseudo-bacteremia caused by the contaminated commercial product of 0.5% chlorhexidine solution in a hospital.Methods: B. cepacia bacteremias detected from 30 November to 17 December 2014 were defined as cases. Epidemiological data were collected by reviewing the medical records and interviews with the healthcare workers. Suspected antiseptics were cultured using blood culture media.Results: Using regular active surveillance of microbiological results, 15 B. cepacia isolates were found in 13 patients. Pseudo-bacteremia was suspected in all of the cases based on the clinical analysis of individual patients. Misuse of 0.5% chlorhexidine in its solution rather than its tincture form as a skin antiseptic prior to drawing blood for blood culture procedures was the only identifiable risk factor for B. cepacia pseudo-bacteremia. Culture of 0.5% chlorhexidine solution was negative. Suspending the use of 0.5% chlorhexidine solution and educating healthcare workers on the proper use of the antiseptic ended the outbreak. Conclusion: Regular surveillance of unusual pathogens may lead to early detection of nosocomial outbreaks. Epidemiological analysis is a strong indicator for the source of outbreak even when there is no microbiological evidence of contamination source.
3-5세 누리과정 교사용 지도서에 수록된 인권 그림책 분석
고수희,최일선 한국유아교육학회 2018 정기학술대회 논문집 Vol.2018 No.-
본 연구의 목적은 3-5세 누리과정 교사용 지도서에 수록된 인권 그림책을 분석하여 인권교육을 위한 그림책 활용의 기초자료를 제공하기 위한 것이다. 이에 본 연구는 누리과정 교사용 지도서에 수록된 그림책 중 인권 그림책 52권을 선정하여 생활주제, 활동유형, 전달매체, 장르, 인권내용별로 분석하였다. 수집된 자료는 엑셀프로그램으로 분석하여 빈도와 백분율을 산출하였다. 본 연구의 결과는 다음과 같다. 첫째, 3-5세 누리과정 교사용 지도서에 수록된 인권 그림책의 일반적인 특성을 분석한 결과 생활주제는 3-5세 공통으로 ‘나와 가족’에 인권 그림책이 가장 많이 분포되어 있었다. 활동유형은 대소집단 활동 중 ‘동화ㆍ동시ㆍ동극’에 편중되어 제시되고 있었고 전달매체는 전체적으로 시청각 매체 중 플래시에 치우쳐 있으며 장르는 사실그림책이 전체의 절반 이상을 차지하였다. 둘째, 3-5세 누리과정 교사용 지도서에 수록된 인권 그림책의 인권관련 내용을 살펴보면 ‘평등의 권리’가 가장 높게 나타났으며 평등의 권리 중에서 ‘타인의 권익 존중’이 가장 많은 비율을 차지하였다. 전반적으로 자유의 권리나 경제적 권리, 정치적 권리는 적게 다루어졌다.
Axillary LN meta가 있는 유방암에서 액와 림프절의 FDG uptake가 가지는 임상적 의미
고수희 ( Soo Hee Go ),서형일 ( Hyung Il Seo ),이지연 ( Jee Yeon Lee ),정윤주 ( Youn Joo Jung ) 대한임상종양학회 2010 Korean Journal of Clinical Oncology Vol.6 No.2
Purpose: 18F-Fluorodeoxyglucose Positron Emission Tomography-Computed Tomography(18F-FDG PET/CT) has been recommended as a diagnostic modality for preoperative staging of breast cancer. But, the information for FDG uptake on axillary lymph node(ALN) is not sufficient. Authors investigated the FDG uptake on ALN in preoperative 18F-FDG PET/CT and tumor characteristics to figure out their association and its clinical significance. Materials and Methods: From Jan. to Dec. 2007, 176 patients had been performed preoperative 18F-FDG PET/CT. Only sixty-five cases were confirmed as ALN metastasis in pathologic report. Thirty-one patients with high FDG uptake of ALN (SUVmax>1.0) and thirty-four with low FDG uptake (SUVmax≤1.0) in 18F-FDG PET/CT were classified as group A and B, respectively. Results: The FDG uptake of ALN showed significant relationship with poor prognostic factors of primary tumor(worse histologic grade, negativity of estrogen and progesterone receptor, positivity of p53 and c-erbB2 gene, tumor necrosis, lymphovascular invasion) and ALN metastasis. In multivariate analysis, FDG uptake of ALN showed larger tumor size (p=0.001), higher Ki-67 (p=0.004), bigger and more metastatic ALN (p=0.017, <0.001) compared to low FDG uptake of ALN. The cut-off values of high FDG uptake were 1.85 cm of primary tumor size, 17.5% of Ki-67, 2.5 and 0.95 cm of number and size of metastatic ALN. Conclusion: The most valuable sensitivity and specificity of FDG uptake in metastatic ALN were shown when the number and size of ALN was more than 3 or 0.95 cm and they would be large enough to perform ultrasonographyguided biopsy. We recommend preoperative ALN biopsy for the cases of FDG uptake on ALN in preoperative 18FFDG PET/CT and the sentinel lymph node biopsy might be skipped if metastasis is confirmed on biopsy.
Changes in SIRT gene expression during odontoblastic differentiation of human dental pulp cells
장영은,고수희,이빈나,장훈상,황인남,오원만,황윤찬 대한치과보존학회 2015 Restorative Dentistry & Endodontics Vol.40 No.3
Objectives: The aim of this study was to investigate the expression of 7 different sirtuin genes (SIRT1-SIRT7) in human dental pulp cells (HDPCs), and to determine the role of SIRTs in the odontoblastic differentiation potential of HDPCs. Materials and Methods: HDPCs were isolated from freshly extracted third molar teeth of healthy patients and cultulred in odontoblastic differentiation inducing media. Osteocalcin (OCN) and dentin sialophosphoprotein (DSPP) expression was analyzed to evaluate the odontoblastic differentiation of HDPCs by reverse transcription-polymerase chain reaction (RT-PCR), while alizarin red staining was used for the mineralization assay. To investigate the expression of SIRTs during odontoblastic differentiation of HDPCs, real time PCR was also performed with RT-PCR. Results: During the culture of HDPCs in the differentiation inducing media, OCN, and DSPP mRNA expressions were increased. Mineralized nodule formation was also increased in the 14 days culture. All seven SIRT genes were expressed during the odontogenic induction period. SIRT4 expression was increased in a time-dependent manner. Conclusions: Our study identified the expression of seven different SIRT genes in HDPCs, and revealed that SIRT4 could exert an influence on the odontoblast differentiation process. Further studies are needed to determine the effects of other SIRTs on the odontogenic potential of HDPCs.
안혜선,고수희,방지환,박상원 대한감염학회 2018 Infection and Chemotherapy Vol.50 No.4
Background: Lancet-related needlestick injuries (NSIs) occur steadily in clinical practices. Safety-engineered devices (SEDs) can systematically reduce NSIs. However, the use of SEDs is not active and no study to guide the implementation of SEDs was known in South Korea. The lancet-related NSIs may be eliminated to zero incidence using a SED lancet with effective sharp injury protection and reuse prevention features. Materials and Methods: We implemented a SED lancet by replacing a conventional prick lancet in a tertiary hospital in a sequential approach. A spot test of the new SED was conducted for 1 month to check the acceptability in practice and a questionnaire survey was obtained from the healthcare workers (HCWs). A pilot implementation of the SED lancet in 2 wards was made for 1 year. Based on these preliminary interventions, a hospital-wide full implementation of the SED lancet was launched. The incidence of NSIs and cost expenditure before and after the intervention were compared. Results: There were 29 cases of conventional prick lancet-related NSIs for 3 years before the full implementation of SED lancet. The proportion of prick lancet-related NSIs among yearly all kinds of NSIs during two years before the pilot study was average 11.7% (22/188). Pre-interventional baseline incidence of all kinds of NSIs was 7.01 per 100 HCW-years. After the full implementation of SED lancet, the lancet-related NSIs became zero in the 2nd year (P = 0.001). The average direct cost of 18,393 US dollars (USD) per year from device and post-exposure medical care before the intervention rose to 20,701 USD in the 2nd year of the intervention. The incremental cost-effectiveness ratio was 210 USD per injury avoided. Conclusion: The implementation of a SED lancet could eliminate the lancet-related NSIs to zero incidence. The cost increase incurred by the use of SED lancet was tolerable.