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      Changes in Prevalence of Health Care–Associated Infections in U.S. Hospitals

      Author(s): 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1 , 1
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      Journal: New England Journal of Medicine
      Publisher: New England Journal of Medicine (NEJM/MMS)

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          Abstract

          A point-prevalence survey that was conducted in the United States in 2011 showed that 4% of hospitalized patients had a health care-associated infection. We repeated the survey in 2015 to assess changes in the prevalence of health care-associated infections during a period of national attention to the prevention of such infections.

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          Preventing surgical-site infections in nasal carriers of Staphylococcus aureus.

          Lonneke G M Bode, Jan Kluytmans, Heiman Wertheim … (2010)
          Nasal carriers of Staphylococcus aureus are at increased risk for health care-associated infections with this organism. Decolonization of nasal and extranasal sites on hospital admission may reduce this risk. In a randomized, double-blind, placebo-controlled, multicenter trial, we assessed whether rapid identification of S. aureus nasal carriers by means of a real-time polymerase-chain-reaction (PCR) assay, followed by treatment with mupirocin nasal ointment and chlorhexidine soap, reduces the risk of hospital-associated S. aureus infection. From October 2005 through June 2007, a total of 6771 patients were screened on admission. A total of 1270 nasal swabs from 1251 patients were positive for S. aureus. We enrolled 917 of these patients in the intention-to-treat analysis, of whom 808 (88.1%) underwent a surgical procedure. All the S. aureus strains identified on PCR assay were susceptible to methicillin and mupirocin. The rate of S. aureus infection was 3.4% (17 of 504 patients) in the mupirocin-chlorhexidine group, as compared with 7.7% (32 of 413 patients) in the placebo group (relative risk of infection, 0.42; 95% confidence interval [CI], 0.23 to 0.75). The effect of mupirocin-chlorhexidine treatment was most pronounced for deep surgical-site infections (relative risk, 0.21; 95% CI, 0.07 to 0.62). There was no significant difference in all-cause in-hospital mortality between the two groups. The time to the onset of nosocomial infection was shorter in the placebo group than in the mupirocin-chlorhexidine group (P=0.005). The number of surgical-site S. aureus infections acquired in the hospital can be reduced by rapid screening and decolonizing of nasal carriers of S. aureus on admission. (Current Controlled Trials number, ISRCTN56186788.) 2010 Massachusetts Medical Society
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            Differences in outcome according to Clostridium difficile testing method: a prospective multicentre diagnostic validation study of C difficile infection

            Timothy Planche, Kerrie Davies, Pietro G Coen … (2013)
            Summary Background Diagnosis of Clostridium difficile infection is controversial because of many laboratory methods, compounded by two reference methods. Cytotoxigenic culture detects toxigenic C difficile and gives a positive result more frequently (eg, because of colonisation, which means that individuals can have the bacterium but no free toxin) than does the cytotoxin assay, which detects preformed toxin in faeces. We aimed to validate the reference methods according to clinical outcomes and to derive an optimum laboratory diagnostic algorithm for C difficile infection. Methods In this prospective, multicentre study, we did cytotoxigenic culture and cytotoxin assays on 12 420 faecal samples in four UK laboratories. We also performed tests that represent the three main targets for C difficile detection: bacterium (glutamate dehydrogenase), toxins, or toxin genes. We used routine blood test results, length of hospital stay, and 30-day mortality to clinically validate the reference methods. Data were categorised by reference method result: group 1, cytotoxin assay positive; group 2, cytotoxigenic culture positive and cytotoxin assay negative; and group 3, both reference methods negative. Findings Clinical and reference assay data were available for 6522 inpatient episodes. On univariate analysis, mortality was significantly higher in group 1 than in group 2 (72/435 [16·6%] vs 20/207 [9·7%], p=0·044) and in group 3 (503/5880 [8·6%], p<0·001), but not in group 2 compared with group 3 (p=0·4). A multivariate analysis accounting for potential confounders confirmed the mortality differences between groups 1 and 3 (OR 1·61, 95% CI 1·12–2·31). Multistage algorithms performed better than did standalone assays. Interpretation We noted no increase in mortality when toxigenic C difficile alone was present. Toxin (cytotoxin assay) positivity correlated with clinical outcome, and so this reference method best defines true cases of C difficile infection. A new diagnostic category of potential C difficile excretor (cytotoxigenic culture positive but cytotoxin assay negative) could be used to characterise patients with diarrhoea that is probably not due to C difficile infection, but who can cause cross-infection. Funding Department of Health and Health Protection Agency, UK.
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              A Program to Prevent Catheter-Associated Urinary Tract Infection in Acute Care.

              Sanjay Saint, M Todd Greene, Sarah L Krein … (2016)
              Catheter-associated urinary tract infection (UTI) is a common device-associated infection in hospitals. Both technical factors--appropriate catheter use, aseptic insertion, and proper maintenance--and socioadaptive factors, such as cultural and behavioral changes in hospital units, are important in preventing catheter-associated UTI.
              Article 0 comments Cited 83 times – based on 0 reviews     Review now
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                Author and article information

                Journal
                Title: New England Journal of Medicine
                Abbreviated Title: N Engl J Med
                Publisher: New England Journal of Medicine (NEJM/MMS)
                ISSN (Print): 0028-4793
                ISSN (Electronic): 1533-4406
                Publication date Created: November 2018
                Publication date (Print): November 2018
                Volume: 379
                Issue: 18
                Pages: 1732-1744
                Affiliations
                [1 ]From the Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, (S.S.M., E.O., C.G., J.B., D.L., E.S., F.B., R.P., J.R.E.), the Department of Medicine, Emory University (S.M.R.), CACI (C.G., J.B., D.L., E.S.), and Eagle Medical Services (F.B.) — all in Atlanta; Colorado Department of Public Health and Environment, Denver (S.J.J., W.B., T.O.); New Mexico Department of Health, Santa Fe (D.L.T., M. Sievers, S.S.), and Presbyterian Healthcare Services (D.L.T.) and University of...
                Article
                DOI: 10.1056/NEJMoa1801550
                PubMed ID: 30380384
                SO-VID: d08d86de-363d-4e27-81d1-957169137c5b
                Copyright © © 2018
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                http://www.nejmgroup.org/legal/terms-of-use.htm

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