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Recent studies have demonstrated that central line-associated bloodstream infections (CLABSIs) are preventable through implementation of evidence-based prevention practices. Hospitals have reported CLABSI data to the Centers for Disease Control and Prevention (CDC) since the 1970s, providing an opportunity to characterize the national impact of CLABSIs over time. Our objective was to describe changes in the annual number of CLABSIs in critical care patients in the United States.
Monte Carlo simulation.
US acute care hospitals.
Nonneonatal critical care patients.
We obtained administrative data on patient-days for nearly all US hospitals and applied CLABSI rates from the National Nosocomial Infections Surveillance and the National Healthcare Safety Network systems to estimate the annual number of CLABSIs in critical care patients nationally during the period 1990–2010 and the number of CLABSIs prevented since 1990.
We estimated that there were between 462,000 and 636,000 CLABSIs in nonneonatal critical care patients in the United States during 1990–2010. CLABSI rate reductions led to between 104,000 and 198,000 fewer CLABSIs than would have occurred if rates had remained unchanged since 1990. There were 15,000 hospital-onset CLABSIs in nonneonatal critical care patients in 2010; 70% occurred in medium and large teaching hospitals.
Substantial progress has been made in reducing the occurrence of CLABSIs in US critical care patients over the past 2 decades. The concentration of critical care CLABSIs in medium and large teaching hospitals suggests that a targeted approach may be warranted to continue achieving reductions in critical care CLABSIs nationally.
To describe a Klebsiella pneumoniae carbapenemase (KPC)–producing carbapenem-resistant Enterobacteriaceae (CRE) outbreak and interventions to prevent transmission.
Design, Setting, and Patients.
Epidemiologic investigation of a CRE outbreak among patients at a long-term acute care hospital (LTACH).
Microbiology records at LTACH A from March 2009 through February 2011 were reviewed to identify CRE transmission cases and cases admitted with CRE. CRE bacteremia episodes were identified during March 2009–July 2011. Biweekly CRE prevalence surveys were conducted during July 2010–July 2011, and interventions to prevent transmission were implemented, including education and auditin? of staff and isolation and cohorting of CRE patients with dedicated nursing staff and shared medical equipment. Trends were evaluated using weighted linear or Poisson regression. CRE transmission cases were included in a case-control study to evaluate risk factors for acquisition. A real-time polymerase chain reaction assay was used to detect the blaKPC gene, and pulsed-field gel electrophoresis was performed to assess the genetic relatedness of isolates.
Ninety-nine CRE transmission cases, 16 admission cases (from 7 acute care hospitals), and 29 CRE bacteremia episodes were identified. Significant reductions were observed in CRE prevalence (49% vs 8%), percentage of patients screened with newly detected CRE (44% vs 0%), and CRE bacteremia episodes (2.5 vs 0.0 per 1,000 patient-days). Cases were more likely to have received β-lactams, have diabetes, and require mechanical ventilation. All tested isolates were KPC-producing K. pneumoniae, and nearly all isolates were genetically related.
CRE transmission can be reduced in LTACHs through surveillance testing and targeted interventions. Sustainable reductions within and across healthcare facilities may require a regional public health approach.
In August 2007, Illinois passed legislation mandating methicillin-resistant Staphylococcus aureus (MRSA) admission screening for intensive care unit patients. We assessed hospital staff perceptions of the implementation of this law.
Mixed-methods evaluation using structured focus groups and questionnaires.
Eight Chicago-area hospitals.
Three strata of staff (leadership, midlevel, and frontline) at each hospital.
All participants completed a questionnaire and participated in a focus group. Focus group transcripts were thematically coded and analyzed. The proportion of staff agreeing with statements about MRSA and the legislation was compared across staff types.
Overall, 126 hospital staff participated in 23 focus groups. Fifty-six percent of participants agreed that the legislation had a positive effect at their facility; frontline staff were more likely to agree than midlevel and leadership staff (P < .01). Perceived benefits of the legislation included increased awareness of MRSA among staff and better knowledge of the epidemiology of MRSA colonization. Perceived negative consequences included the psychosocial effect of screening and contact precautions on patients and increased use of resources. Most participants (59%) would choose to continue the activities associated with the legislation but advised facilities in states considering similar legislation to educate staff and patients about MRSA screening and to draft clear implementation plans.
Staff from Chicago-area hospitals perceived that mandatory MRSA screening legislation resulted in some benefits but highlighted implementation challenges. States considering similar initiatives might minimize these challenges by optimizing messaging to patients and healthcare staff, drafting implementation plans, and developing program evaluation strategies.
In May 2009, we investigated a hospital outbreak of pandemic H1N1 (pH1N1) infection among healthcare personnel (HCP). Thirteen (65%) of 20 HCP with pH1N1 infection had healthcare-associated cases, which were primarily attributed to transmission among HCP. Eleven (55%) of HCP with pH1N1 infection worked for 1 day or more after the onset of illness. Personnel working with mild illness may have contributed to transmission among HCP.
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