• Korean Journal of Clinical Pharmacy
• /
• v.23 no.1
• /
• pp.77-80
• /
• 2013

메치실린 저항성 황색 포도상구균(MRSA)에 감염된 환자에게 단기간 연속적으로 반코마이신을 투여했을 때 비정상적으로 호중구의 수치가 감소한 약인성 부작용 사례를 보고하고자 한다. 해당 여성 환자는 61세로서 MRSA 감염증을 판정받고 반코마이신 투여와 더불어 점차 백혈구(WBC)와 절대호중구수치(ANC)가 감소하였고, 제10일째에 이르러 호중구 감소증이 발생하여 ANC가 최저 430 $cells/mm^3$까지 낮아졌으나, 반코마이신의 투여를 중단하자 곧 정상수준으로 회복되었다. 본 사례는 Naranjo Probability Scale과 Korean Algorithm Score(Ver. 2.0)로 각각 평가하였을 때 반코마이신의 투여와 호중구감소증의 발현 사이에 모두 '가능한(probable)' 정도의 인과관계를 가진 것으로 평가되었다. 이는 통상적으로 20일 이상 연속투여를 할 때 임상적으로 관측되던 반코마이신-유래 호중구감소증이 단지 10일 정도의 단기간 투여만으로도 발생할 수 있다는 임상적 약물부작용의 사례로서, 향후 MRSA환자에게 반코마이신을 선택할 때에는 이와 같은 부작용을 고려하여 환자의 WBC와 ANC를 면밀히 관찰하면서 투여할 필요성이 있음을 시사한다.

• Microbiology and Biotechnology Letters
• /
• v.42 no.3
• /
• pp.232-237
• /
• 2014

We investigated the effects of silica gels on the reduction of the crystallization time for the purification of vancomycin. The shortest crystallization time for vancomycin was obtained when silica gel with a pore diameter of $40-60{\AA}$ and with a particle diameter of 230-400 mesh was used as the material. The use of silica gel as a surface area increasing material dramatically reduced the crystallization time four fold (6 h) when compared with the results where the surface area had not been similarly increased. In addition, the crystal size of vancomycin was decreased with the addition of silica gel. This improved crystallization process has a significant effect on the convenience and feasibility of the purification step for vancomycin.

• Microbiology and Biotechnology Letters
• /
• v.42 no.3
• /
• pp.297-301
• /
• 2014

We examined the effect of ionic liquid on the crystallization efficiency of vancomycin in an increased surface area crystallization with silica gel. The crystallization efficiency was improved by the addition of ionic liquid, [BMIm][$BF_4$]. The addition of ionic liquid (20%, v/v) on the increased surface area crystallization with silica gel dramatically reduced the crystallization time by 6 folds (4 h), compared with the results of the case where the surface area-increasing material and ionic liquid had not been added. In addition, the crystal size of vancomycin was decreased and the crystal quality of vancomycin was improved by increasing the addition of ionic liquid.

• Clinical and Experimental Pediatrics
• /
• v.51 no.11
• /
• pp.1228-1231
• /
• 2008

Drug hypersensitivity syndrome (DHS) has rarely been reported in association with vancomycin treatment. Here, we describe an 11-year-old girl who developed fever and a maculopapular rash on day 18 of intravenous vancomycin for treatment of infective endocarditis. The patient presented with fever, a maculopapular skin rash, hepatitis, and acute renal failure caused by vancomycin-induced DHS. The symptoms resolved in less than 24 h after withdrawal of vancomycin and treatment with corticosteroids. We present this case of DHS associated with vancomycin.

• 대한정형외과스포츠의학회:학술대회논문집
• /
• 2005.04a
• /
• pp.36-36
• /
• 2005

• Journal of the korean veterinary medical association
• /
• v.40 no.7
• /
• pp.634-638
• /
• 2004

• Analytical Science and Technology
• /
• v.15 no.5
• /
• pp.410-416
• /
• 2002

In this study, a new quantitative analytical method has been developed for the rapid determination of vancomycin in human plasma and urine using liquid chromatography/tandem mass spectrometry (LC - MS/MS). Chromatography was carried out on a $C_{18}$ XTerra MS column ($2.1{\times}30mm$) with a particle size of $3.5{\mu}m$. The mobile phase was 0.25% formic acid in 10% acetonitrile and the flow rate was $250{\mu}L/min$. Vancomycin and caffeine (internal standard) were detected by MS/MS using multiple reaction monitoring (MRM). Vancomycin gives a predominant doubly protonated precursor molecule ($[M+2H]^{2+}$) at m/z 725.0 and a corresponding product ion of m/z 100.0. Detection of vancomycin was good, accurate and precise, with a limit of detection of 1 nM in plasma. The calibration curves for vancomycin in human plasma was linear in a concentration range of $0.01{\mu}M$ - $100{\mu}M$ for plasma. This method has been successfully applied to determine the concentration of vancomycin in human plasma and urine from pharmacokinetic study and relative studies.

• Journal of Korean Society of Environmental Engineers
• /
• v.32 no.10
• /
• pp.979-985
• /
• 2010

This study was performed to detect enterococci strain as an indicator of faecal contamination, to identify of 16S rDNA sequence and vancomycin resistance by MIC (Minimum Inhibitory Concentration) test from drinking spring-water samples in Seoul. The detection frequency of enterococci was 42 (19.8%) among 212 samples, and its concentration was ranged from 0 to 110 CFU/100 mL. These results were confirmed the possibility as an indicator microorganisms that similar to the frequency of E. coli detection (t test p-value 0.268, significant level 0.05). Isolated 56 enterococci samples were identified by 16S rDNA sequence data and their NCBI BLAST searching. They were identified to Enterococcus faecalis of 24 samples, E. faecium (10), E. casseliflavus (10), E. gallinarum (3), E. hirae (2), E. durans (2), E. sanguinicola (1). E. faecalis was dominant species that clinical case report of a domestic was similar. Vancomycin resistant enterococci (VRE) of 53 samples showed that vanB and vanC1/C2 type with 2 and 12 case, respectively. These results indicated that the drinking spring-water quarantined to fecal pollution for block out outbreak of gastrointestinal symptom with using such as disinfection process.

• Journal of Korean Academy of Fundamentals of Nursing
• /
• v.15 no.4
• /
• pp.531-538
• /
• 2008

Purpose: The purpose of this study was to identify factors influencing Vancomycin-resistant enterococcus infection control among nurses in intensive care units. Method: Data were collected from August 15 to October 14, 2007 from 188 nurses working in intensive care units. The nurses answered a 26 item-questionnaire, which included management of the cohort (14 items), hand washing (6 items) and management of the environment (6 items). Descriptive statistics, t or F test, ANOVA, and multiple regression analysis were used with SPSS PC+ 14.0 to analyze the data. Results: The participant's level of awareness of Vancomycin-resistant enterococcus infection control was 3.87; that of compliance was 3.74. Significant factors influencing the level of compliance with Vancomycin-resistant enterococcus infection control were'the level of the awareness' and 'the type of intensive care unit'. These two variables accounted for 21.0% of variance for compliance with the Vancomycin-resistant enterococcus infection control among the participants. Conclusion: In order to develop a strategy to increase the compliance with Vancomycin-resistant enterococcus infection control, it is necessary to be concerned about 'the level of the awareness', 'the type of intensive care unit;', and 'experiences of caring for patients with Vancomycin-resistant enterococcus'.

• YAKHAK HOEJI
• /
• v.45 no.5
• /
• pp.491-493
• /
• 2001

Coagulase-negative Staphylococcus sp #39, isolated from raw-milk showed reduced susceptibility to vancomycin. The minimun inhibitory concentration for strain #39 was at 8$\mu\textrm{g}$ of vancomycin per ml. Transmitting electron microscopy displayed that this strain had a 2.5-3.5 times thicker cell wall than a vancomucin sensitive strain of Staphylococcus sp. The strain #39 also had an increased cell volume. These data indicate that the reduced susceptibility may be due to the thickness of the cell wall of the test strain.