Changes in the Epidemiology of Methicillin-Resistant Staphylococcus aureus in Intensive Care Units in US Hospitals, 1992-2003

Klevens, R. Monina; Edwards, Jonathan R.; Tenover, Fred C.; McDonald, L. Clifford; Horan, Teresa C.; Gaynes, Robert P.

doi:10.1086/499367

Cited by 486 publications

(295 citation statements)

References 13 publications

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“…2 More than 70% of S. aureus isolates in intensive care units (ICUs) in the USA are methicillin-resistant. 3 Vancomycin (a glycopeptide antibiotic) has been used for nearly 50 years in treating MRSA infection. It remains first-line therapy against invasive MRSA infections.…”

mentioning

confidence: 99%

The relationship between trough concentration of vancomycin and effect on methicillin-resistant Staphylococcus aureus in critically ill patients

et al. 2012

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mentioning

confidence: 99%

The relationship between trough concentration of vancomycin and effect on methicillin-resistant Staphylococcus aureus in critically ill patients

et al. 2012

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“…En personas hospitalizadas, SARM ha sido un problema desde la década de 1960 25 , siendo casi 20% de las septicemias en hospitales asociadas a S. aureus 26 , de las cuales 64,4% fueron confirmadas como SARM en centros de cuidados intensivos en Estados Unidos de América en el año 2003 27 . Sin embargo, producto de diferentes programas de control y prevención, la incidencia de este patógeno a nivel intrahospitalario ha disminuido en 13% entre los años 2013 y 2014 28 .…”

Section: Microbiologíaunclassified

Detección del gen mecA en cepas de Staphylococcus coagulasa positiva aisladas desde gatos

Galarce

Muñoz

Jara

et al. 2016

Rev. chil. infectol.

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“…S. aureus bacteraemia (SAB) is an infection of the blood associated with a mortality rate in excess of 20 % (Klevens et al, 2006;Lowy, 1998) while meticillin-resistant S. aureus (MRSA) bacteraemia is associated with mortality rates as high as 60 % (Cluff et al, 1968;Julander, 1985).…”

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confidence: 99%

Rapid detection of meticillin-resistant Staphylococcus aureus bacteraemia using combined three-hour short-incubation matrix-assisted laser desorption/ionization time-of-flight MS identification and Alere Culture Colony PBP2a detection test

Delport

Mohorovic

Burn

et al. 2016

Journal of Medical Microbiology

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Meticillin-resistant Staphylococcus aureus (MRSA) bloodstream infection is responsible for significant morbidity, with mortality rates as high as 60 % if not treated appropriately. We describe a rapid method to detect MRSA in blood cultures using a combined three-hour shortincubation BRUKER matrix-assisted laser desorption/ionization time-of-flight MS BioTyper protocol and a qualitative immunochromatographic assay, the Alere Culture Colony Test PBP2a detection test. We compared this combined method with a molecular method detecting the nuc and mecA genes currently performed in our laboratory. One hundred and seventeen S. aureus blood cultures were tested of which 35 were MRSA and 82 were meticillin-sensitive S. aureus (MSSA). The rapid combined test correctly identified 100 % (82/82) of the MSSA and 85.7 % (30/35) of the MRSA after 3 h. There were five false negative results where the isolates were correctly identified as S. aureus, but PBP2a was not detected by the Culture Colony Test. The combined method has a sensitivity of 87.5 %, specificity of 100 %, a positive predictive value of 100 % and a negative predictive value of 94.3 % with the prevalence of MRSA in our S. aureus blood cultures. The combined rapid method offers a significant benefit to early detection of MRSA in positive blood cultures. INTRODUCTIONStaphylococcus aureus is a clinically important pathogen that causes a wide variety of diseases and accounts for more than 50 % of nosocomial infections in intensive care units (NNIS System, 1999). S. aureus bacteraemia (SAB) is an infection of the blood associated with a mortality rate in excess of 20 % (Klevens et al., 2006;Lowy, 1998) while meticillin-resistant S. aureus (MRSA) bacteraemia is associated with mortality rates as high as 60 % (Cluff et al., 1968;Julander, 1985).Until the 1980s, MRSA was almost exclusively limited to nosocomial settings and community strains were largely considered meticillin susceptible (Thompson et al., 1982). However, a decade later there was a measurable increase in community-acquired meticillin-resistant S. aureus (CA-MRSA) infections in people with no known risk factors and an overall increase in CA-MRSA infections in general (Layton et al., 1995). In Canada, there was a 17-fold increase in CA-MRSA infections from 1995 to (Simor et al., 2010. In London, Ontario, the all-cause mortality Abbreviations: BAP, blood agar plate; CA-MRSA, community-acquired meticillin-resistant Staphylococcus aureus; CCT, Alere PBP2a Culture Colony Test; CI, confidence interval; MALDI-ToF, matrix-assisted laser desorption/ionization time-of-flight; MRSA, meticillin-resistant S. aureus; MSSA, meticillin-sensitive S. aureus; OR, odds ratio; SAB, S. aureus bacteraemia; SIMI, short-incubation MALDI-ToF MS identification. Cavassini et al., 1999). Some of these methods depend on well-defined colony morphology and can be very time and labour intensive. To the best of our knowledge, a combined rapid, 3 h procedure, using a shortincubationThe objective of this study was to determine the ability t...

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Changes in the Epidemiology of Methicillin-Resistant Staphylococcus aureus in Intensive Care Units in US Hospitals, 1992-2003

Cited by 486 publications

References 13 publications

The relationship between trough concentration of vancomycin and effect on methicillin-resistant Staphylococcus aureus in critically ill patients

The relationship between trough concentration of vancomycin and effect on methicillin-resistant Staphylococcus aureus in critically ill patients

Detección del gen mecA en cepas de Staphylococcus coagulasa positiva aisladas desde gatos

Rapid detection of meticillin-resistant Staphylococcus aureus bacteraemia using combined three-hour short-incubation matrix-assisted laser desorption/ionization time-of-flight MS identification and Alere Culture Colony PBP2a detection test

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