Surveillance for central-line–associated bloodstream infections: Accuracy of different sampling strategies

2018 ◽  
Vol 39 (10) ◽  
pp. 1210-1215
Author(s):  
Elani Kourkouni ◽  
Georgia Kourlaba ◽  
Evangelia Chorianopoulou ◽  
Grammatiki-Christina Tsopela ◽  
Ioannis Kopsidas ◽  
...  

AbstractBackgroundActive daily surveillance of central-line days (CLDs) in the assessment of rates of central-line–associated bloodstream infections (CLABSIs) is time-consuming and burdensome for healthcare workers. Sampling of denominator data is a method that could reduce the time necessary to conduct active surveillance.ObjectiveTo evaluate the accuracy of various sampling strategies in the estimation of CLABSI rates in adult and pediatric units in Greece.MethodsDaily denominator data were collected across Greece for 6 consecutive months in 33 units: 11 adult units, 4 pediatric intensive care units (PICUs), 12 neonatal intensive care units (NICUs), and 6 pediatric oncology units. Overall, 32 samples were evaluated using the following strategies: (1) 1 fixed day per week, (2) 2 fixed days per week, and (3) 1 fixed week per month. The CLDs for each month were estimated as follows: (number of sample CLDs/number of sampled days) × 30. The estimated CLDs were used to calculate CLABSI rates. The accuracy of the estimated CLABSI rates was assessed by calculating the percentage error (PE): [(observed CLABSI rates − estimated CLABSI rates)/observed CLABSI rates].ResultsCompared to other strategies, sampling over 2 fixed days per week provided the most accurate estimates of CLABSI rates for all types of units. Percentage of estimated CLABSI rates with PE ≤±5% using the strategy of 2 fixed days per week ranged between 74.6% and 88.7% in NICUs. This range was 79.4%–94.1% in pediatric onology units, 62.5%–91.7% in PICUs, and 80.3%–92.4% in adult units. Further evaluation with intraclass correlation coefficients and Bland-Altman plots indicated that the estimated CLABSI rates were reliable.ConclusionSampling over 2 fixed days per week provides a valid alternative to daily collection of CLABSI denominator data. Adoption of such a monitoring method could be an important step toward better and less burdensome infection control and prevention.

2020 ◽  
Vol 41 (S1) ◽  
pp. s68-s68
Author(s):  
Allan Nkwata ◽  
Minn Soe ◽  
Qunna Li ◽  
Dominque Godfrey-Johnson ◽  
Jonathan Edwards ◽  
...  

Background: Central-line–associated bloodstream infections (CLABSIs) are a major source of healthcare-associated infections (HAIs) in neonatal intensive care unit (NICU) patients, and they are associated with increased morbidity, mortality, and costs. CLABSI surveillance has been a critical component for hospitals participating in the Center for Disease Control and Prevention’s National Healthcare Safety Network (NHSN) for many years. CLABSI reporting grew substantially as a result of state reporting mandates first introduced in 2005 and federal reporting requirements for all intensive care units that began in 2011. However, no recent assessment of NHSN CLABSI incidence rate changes have been performed. The objective of this analysis was to estimate the overall trends in annual CLABSI incidence rates in NICUs from 2009 to 2018. Methods: We analyzed NHSN CLABSI data reported from NICUs during 2009–2018. CLABSIs further classified as mucosal barrier injury were included in this analysis. To evaluate the trends of CLABSI incidence (per 1,000 central-line days), and to account for the potential impact of definition changes introduced in 2015, we conducted an interrupted time-series analysis using mixed-effects negative binomial regression modeling. Birth weight category, patient care location type and hospital-level characteristics such as hospital type, medical affiliation, teaching status, bed size, and average length of inpatient stay) were assessed as potential covariates in regression analysis. Random intercept and slope models were evaluated with covariance tests and used to account for differential baseline incidence and trends among reporting NICUs. Results: The number of NICUs reporting to NHSN increased significantly following the federal mandate and has remained slightly >1,000 NICUs since 2013. The crude incidence of CLABSI dropped from 2.24 in 2009 to 0.98 infections per 1,000 central-line days in 2018, except for an increase in 2015 (Table 1). The CLABSI incidence, adjusted for birth weight category, decreased by an average of 11.6% per year from 2009 to 2018 except for a 35.8% increase in 2015 (Table 2). Conclusion: These findings suggest that hospitals have made significant strides in reducing the occurrence of CLABSIs in NICUs over the last 10 years. The increase in 2015 could be explained in part by the implementation and application of new definitional changes. Continued practices and policies that target, assess and prevent CLABSI in this setting may have been effective and remain vital to sustaining this decline nationally in subsequent years.Funding: NoneDisclosures: None


2012 ◽  
Vol 17 (suppl_A) ◽  
pp. 15A-15A
Author(s):  
AC Blanchard ◽  
E Fortin ◽  
I Rocher ◽  
D Moore ◽  
C Frenette ◽  
...  

2012 ◽  
Vol 5 (1) ◽  
pp. 5-12 ◽  
Author(s):  
Lawrence F. Muscarella

Five studies that evaluated five different quality-improvement initiatives for the prevention of central line-associated bloodstream infections (CLABSIs) in adult, pediatric and/or neonatal intensive care units (ICUs) and that were published within the past two years in an infection-control and epidemiology journal were reviewed, assessed and compared. Each is a prospective cohort study that similarly concludes that the evaluated initiative was responsible for a significant and calculated reduction in the CLABSI rate, ranging from 30.3% to 85%. The soundness of these conclusions and calculations, however, like the legitimacy of several other common uses of CLABSI data, requires, in addition to satisfying a number of other criteria, that each study's CLABSI rates be accurate and complete. The primary goal of this analysis, therefore, was to confirm the hypothesis that each of these five studies had validated its CLABSI rates. The analysis found, however, that these five studies did not validate the accuracy and completeness of their CLABSI rates, which raises reasonable questions about each study’s assessment of and conclusions about the initiative's effectiveness for the prevention of CLABSIs. In addition to their aims, calculations, and conclusions, these five studies share in common a number of features, as well as circumscribing qualities, which are discussed. The distinction between a qualitative assessment and a quantitative determination of an initiative's performance is also discussed. Both the circumspective use of CLABSI data that have not been validated and the cautious interpretation of conclusions about central-line care that are based on these CLABSI data are recommended.


2013 ◽  
Vol 34 (11) ◽  
pp. 1167-1173 ◽  
Author(s):  
Ana C. Blanchard ◽  
Elise Fortin ◽  
Isabelle Rocher ◽  
Dorothy L. Moore ◽  
Charles Frenette ◽  
...  

Objective.Describe the epidemiology of central line-associated bloodstream infections (CLABSIs) in neonatal intensive care units (NICUs) participating in a standardized and mandatory CLABSI surveillance program.Design.Retrospective cohort.Setting.We included patients admitted (April 2007-March 2011) to 7 level II/III NICUs who developed a CLABSI (as defined by the National Healthcare Safety Network).Methods. CLABSIs/1,000 central line–days and device utilization ratio were calculated; x2 test, Student t test, Kruskal-Wallis, and Poisson regression were used.Results.Overall, 191 patients had 202 CLABSI episodes for a pooled mean rate of 4.0 CLABSIs/1,000 central line-days and a device utilization ratio of 0.20. Annual pooled mean CLABSI rates increased from 3.6 in 2007-2008 to 5.1 CLABSIs/1,000 central line-days in 2010-2011 (P = .01). The all-cause 30-day case fatality proportion was 8.9% (n = 17) and occurred a median of 8 days after CLABSI. Coagulase-negative Staphylococcus was identified in 112 (50.5%) cases. Staphylococcus aureus was identified in 22 cases, and 3 (13.6%) were resistant to methicillin. An underlying intra-abdominal pathology was found in 20% (40/202) of CLABSI cases, 50% of which were reported in the last year of study. When adjusted for mean birth weight, annual CLABSI incidence rates were independently associated with the proportion of intra-abdominal pathology (P = .007) and the proportion of pulmonary pathology (P = .016) reported.Conclusion.The increase in CLABSI rates in Quebec NICUs seems to be associated with an increased proportion of cases with underlying intra-abdominal and pulmonary pathologies, which needs further investigation.


2014 ◽  
Vol 35 (9) ◽  
pp. 1133-1139 ◽  
Author(s):  
Philip Zachariah ◽  
Julie Reagan ◽  
E. Yoko Furuya ◽  
Andrew Dick ◽  
Hangsheng Liu ◽  
...  

ObjectiveTo determine the association between state legal mandates for data submission of central line–associated bloodstream infections (CLABSIs) in neonatal intensive care units (NICUs) with process and outcome measures.DesignCross-sectional study.Participants. National sample of level II/III and III NICUs participating in National Healthcare Safety Network (NHSN) surveillance.MethodsState mandates for data submission of CLABSIs in NICUs in place by 2011 were compiled and verified with state healthcare-associated infection coordinators. A web-based survey of infection control departments in October 2011 assessed CLABSI prevention practices, ie, compliance with checklist/bundle components (process measures) in ICUs including NICUs. Corresponding 2011 NHSN NICU CLABSI rates (outcome measures) were used to calculate standardized infection ratios (SIRs). Association between mandates and process and outcome measures was assessed by multivariable logistic regression.ResultsAmong 190 study NICUs, 107 (56.3%) were located in states with mandates, with mandates in place >3 years in 52 (49%). More NICUs in states with mandates reported ≥95% compliance to at least 1 CLABSI prevention practice (52.3%–66.4%) than NICUs in states without mandates (28.9%–48.2%). Mandates were predictors of ≥95% compliance with all practices (odds ratio, 2.8; 95% confidence interval, 1.4–6.1). NICUs in states with mandates reported lower mean CLABSI rates in the ≤750-g birth weight group (2.4 vs 5.7 CLABSIs/1,000 central line–days) but not in others. Mandates were not associated with SIR <1.ConclusionsState mandates for NICU CLABSI data submission were significantly associated with ≥95% compliance with CLABSI prevention practices, which declined with the duration of mandate but not with lower CLABSI rates.Infect Control Hosp Epidemiol 2014;35(9):1133-1139


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