The Impact of the National Healthcare Safety Network Mucosal Barrier Injury Laboratory-confirmed Bloodstream Infection Definition on a Hematology Oncology Unit

2014 ◽  
Vol 42 (6) ◽  
pp. S61
Author(s):  
Linda Sullivan
2015 ◽  
Vol 37 (1) ◽  
pp. 2-7 ◽  
Author(s):  
Lauren Epstein ◽  
Isaac See ◽  
Jonathan R. Edwards ◽  
Shelley S. Magill ◽  
Nicola D. Thompson

OBJECTIVESTo determine the impact of mucosal barrier injury laboratory-confirmed bloodstream infections (MBI-LCBIs) on central-line–associated bloodstream infection (CLABSI) rates during the first year of MBI-LCBI reporting to the National Healthcare Safety Network (NHSN)DESIGNDescriptive analysis of 2013 NHSN dataSETTINGSelected inpatient locations in acute care hospitalsMETHODSA descriptive analysis of MBI-LCBI cases was performed. CLABSI rates per 1,000 central-line days were calculated with and without the inclusion of MBI-LCBIs in the subset of locations reporting ≥1 MBI-LCBI, and in all locations (regardless of MBI-LCBI reporting) to determine rate differences overall and by location type.RESULTSFrom 418 locations in 252 acute care hospitals reporting ≥1 MBI-LCBIs, 3,162 CLABSIs were reported; 1,415 (44.7%) met the MBI-LCBI definition. Among these locations, removing MBI-LCBI from the CLABSI rate determination produced the greatest CLABSI rate decreases in oncology (49%) and ward locations (45%). Among all locations reporting CLABSI data, including those reporting no MBI-LCBIs, removing MBI-LCBI reduced rates by 8%. Here, the greatest decrease was in oncology locations (38% decrease); decreases in other locations ranged from 1.2% to 4.2%.CONCLUSIONSAn understanding of the potential impact of removing MBI-LCBIs from CLABSI data is needed to accurately interpret CLABSI trends over time and to inform changes to state and federal reporting programs. Whereas the MBI-LCBI definition may have a large impact on CLABSI rates in locations where patients with certain clinical conditions are cared for, the impact of MBI-LCBIs on overall CLABSI rates across inpatient locations appears to be more modest.Infect. Control Hosp. Epidemiol. 2015;37(1):2–7


2013 ◽  
Vol 34 (8) ◽  
pp. 769-776 ◽  
Author(s):  
Isaac See ◽  
Martha Iwamoto ◽  
Kathy Allen-Bridson ◽  
Teresa Horan ◽  
Shelley S. Magill ◽  
...  

Objective.To assess challenges to implementation of a new National Healthcare Safety Network (NHSN) surveillance definition, mucosal barrier injury laboratory-confirmed bloodstream infection (MBI-LCBI).Design.Multicenter field test.Setting.Selected locations of acute care hospitals participating in NHSN central line-associated bloodstream infection (CLABSI) surveillance.Methods.Hospital staff augmented their CLABSI surveillance for 2 months to incorporate MBI-LCBI: a primary bloodstream infection due to a selected group of organisms in patients with either neutropenia or an allogeneic hematopoietic stem cell transplant with gastrointestinal graft-versus-host disease or diarrhea. Centers for Disease Control and Prevention (CDC) staff reviewed submitted data to verify whether CLABSIs met MBI-LCBI criteria and summarized the descriptive epidemiology of cases reported.Results.Eight cancer, 2 pediatric, and 28 general acute care hospitals including 193 inpatient units (49% oncology/bone marrow transplant [BMT], 21% adult ward, 20% adult critical care, 6% pediatric, 4% step-down) conducted field testing. Among 906 positive blood cultures reviewed, 282 CLABSIs were identified. Of the 103 CLABSIs that also met MBI-LCBI criteria, 100 (97%) were reported from oncology/BMT locations. Agreement between hospital staff and CDC classification of reported CLABSIs as meeting the MBI-LCBI definition was high (90%; k= 0.82). Most MBI-LCBIs (91%) occurred in patients meeting neutropenia criteria. Some hospitals indicated that their laboratories' methods of reporting cell counts prevented application of neutropenia criteria; revised neutropenia criteria were created using data from field testing.Conclusions.Hospital staff applied the MBI-LCBI definition accurately. Field testing informed modifications for the January 2013 implementation of MBI-LCBI in the NHSN.


2019 ◽  
Vol 6 (Supplement_2) ◽  
pp. S419-S419
Author(s):  
Johny Fares ◽  
Melissa Khalil ◽  
Anne-Marie Hajjar Chaftari ◽  
Ying Jiang ◽  
Ray Y Hachem ◽  
...  

Abstract Background Over the last 2 decades, Gram-negative organisms have been on the rise as an etiology of bloodstream infections (BSI) in cancer patients. Management of the central venous catheter (CVC) in the setting of Gram-negative BSI remains challenging. The aim of our study was to evaluate cancer patients with different types of Gram-negative BSI, in the presence of an indwelling CVC, and assess the impact of line management on the outcome of the BSI. Methods We identified all the patients older than 14 years with CVC who had a documented BSI with a Gram-negative organism at M.D Anderson Cancer Center, from May 2017 until May 2018. Patients were divided into three groups. Group 1 (G1) included patients with central-line associated bloodstream infection and no mucosal barrier injury (non-MBI CLABSI) and/or those who met the catheter-related bloodstream infection (CRBSI) criteria; Group 2 (G2) consisted of patients who had a CLABSI with a mucosal barrier injury that did not meet the CRBSI definition; and Group 3 (G3) consisted of patients who had a non-line-related BSI. We assessed catheter management (CVC removed/exchanged or retained) at 2 days after the onset of bacteremia. We then determined the effect of line management on clinical and microbiologic outcomes through various measures. Results A total of 300 patients were included with 100 patients in each group. The univariate analyses showed that in G1, CVC removal within 2 days of bacteremia was significantly associated with higher rate of microbiologic eradiation of the bacteremia compared with delayed CVC removal (3 to 5 days) or CVC retention (98% vs. 72% vs. 78% respectively, P = 0.002; P < 0.001), and lower overall mortality rate at 3 months follow-up (3% vs. 22% vs. 17% respectively, P = 0.02; P = 0.01). By multivariate analysis, this association persisted (P = 0.018 and P = 0.016, respectively). CVC removal within 2 days of bacteremia did not affect the outcome of BSI in G2 and G3. Conclusion CVC removal within 48 hours of the onset of Gram-negative bacteremia significantly improved the infectious outcome and the overall mortality in adult cancer patients with definite CRBSI and CLABSI without MBI. Disclosures All authors: No reported disclosures.


2020 ◽  
Vol 41 (S1) ◽  
pp. s293-s294
Author(s):  
Prachi Patel ◽  
Margaret A. Dudeck ◽  
Shelley Magill ◽  
Nora Chea ◽  
Nicola Thompson ◽  
...  

Background: The NHSN collects data on mucosal barrier injury, laboratory-confirmed, bloodstream infections (MBI-LCBIs) as part of bloodstream infection (BSI) surveillance. Specialty care areas (SCAs), which include oncology patient care locations, tend to report the most MBI-LCBI events compared to other location types. During the update of the NSHN aggregate data and risk models in 2015, MBI-LCBI events were excluded from central-line–associated BSI (CLABSI) model calculations; separate models were generated for MBI-LCBIs, resulting in MBI-specific standardized infection ratios (SIRs). This is the first analysis to describe risk-adjusted incidence of MBI-LCBIs at the national level. Methods: Data were analyzed for MBI-LCBIs attributed to oncology locations conducting BSI surveillance from January 2015 through December 2018. We generated annual national MBI-LCBI SIRs using risk models developed from 2015 data and compared the annual SIRs to the baseline (2015) using a mid-P exact test. To account for the impact of an expansion in the MBI-LCBI organism list in 2017 from 489 organisms (32 genera) to 1,003 organisms (89 genera), we removed the MBI-LCBI events that met the newly added MBI organisms and generated additional MBI SIRs for 2017 and 2018. Results: The annual SIRs remained above 1 since 2015, indicating a greater number of MBI-LCBIs identified than were predicted based on the 2015 national data (Fig. 1). Each year’s SIR was significantly different than the national baseline, and the highest SIR was observed in 2017 (SIR, 1.377). In 2017, 12% of MBI events were attributed to an organism that was added to the MBI organism list, and in 2018 it was 10%. After removal of MBIs attributed to the expanded organisms, the 2017 and 2018 SIRs remained higher than those of previous years (1.241 and 1.232, respectively). Conclusions: The distinction of MBI-LCBIs from all other CLABSIs provides an opportunity to assess the burden of this infection type within specific patient populations. Since 2015, the increase of these events in the oncology population highlights the need for greater attention on prevention strategies pertinent to MBI-LCBI in this vulnerable population.Funding: NoneDisclosures: None


2019 ◽  
Vol 6 (10) ◽  
Author(s):  
Johny Fares ◽  
Melissa Khalil ◽  
Anne-Marie Chaftari ◽  
Ray Hachem ◽  
Ying Jiang ◽  
...  

Abstract Objective Gram-negative organisms have become a major etiology of bloodstream infections. We evaluated the effect of central venous catheter management on cancer patients with gram-negative bloodstream infections. Method We retrospectively identified patients older than 14 years with central venous catheters who were diagnosed with gram-negative bloodstream infections to determine the effect of catheter management on outcome. Patients were divided into 3 groups: Group 1 included patients with central line-associated bloodstream infections (CLABSI) without mucosal barrier injury and those whose infection met the criteria for catheter-related bloodstream infection; group 2 included patients with CLABSI with mucosal barrier injury who did not meet the criteria for catheter-related bloodstream infection; and group 3 included patients with non-CLABSI. Results The study included 300 patients, with 100 patients in each group. Only in group 1 was central venous catheter removal within 2 days of bloodstream infection significantly associated with a higher rate of microbiologic resolution at 4 days compared to delayed central venous catheter removal (3–5 days) or retention (98% vs 82%, P = .006) and a lower overall mortality rate at 3-month follow-up (3% vs 19%, P = .01). Both associations persisted in multivariate analyses (P = .018 and P = .016, respectively). Conclusions Central venous catheter removal within 2 days of the onset of gram-negative bloodstream infections significantly improved the infectious outcome and overall mortality of adult cancer patients with catheter-related bloodstream infections and CLABSI without mucosal barrier injury.


2019 ◽  
Vol 6 (Supplement_2) ◽  
pp. S769-S769
Author(s):  
Elisabeth Caulder ◽  
Elizabeth Palavecino ◽  
James Beardsley ◽  
James Johnson ◽  
Vera Luther ◽  
...  

Abstract Background Vancomycin-resistant Enterococcus (VRE) bloodstream infection (BSI) is a significant cause of morbidity and mortality in immunocompromised patients. This study aimed to assess the impact of daptomycin (DAP) MIC on outcomes of treatment for VRE BSI in neutropenic oncology patients. Methods This was a retrospective, observational, single-center, cohort study at an academic medical center. Included: age ≥ 18, neutropenia, admitted to oncology unit, and DAP for VRE BSI. Excluded: death within 24 hours after initiation of DAP, polymicrobial BSI, and linezolid use for > 48 hours before DAP initiation. Patients with VRE BSI 2008–2018 were identified using a report from the micro lab. Data were collected by electronic medical record review. The primary outcome of the study was clinical success, defined as culture sterilization, hypotension resolution, defervescence, and no need to change DAP due to persistent signs/symptoms of infection. Patients were analyzed according to DAP MIC ≤ 2 vs. ≥ 4 mg/L. Multivariable logistic regression analysis was performed to identify factors associated with clinical success. Results 44 patients met study criteria (MIC ≤ 2, n = 26; MIC ≥ 4, n = 18). Mean age was 58 years, 59% were male, and median ANC was 0. Median Charlson Comorbidity Index Score and Pitt Bacteremia Score (Pitt) were 5 and 1, respectively. 34% required ICU admission. More patients achieved clinical success with MIC ≤ 2 (88% vs. 56%; P = 0.03). Time to success (2.4 vs. 4 days, P = 0.02) and time to culture sterilization (2.2 vs. 2.9 days, P = 0.24) were shorter with MIC ≤ 2. Mortality was similar between groups (31% vs. 33%). Time to culture sterilization (P = 0.008), neutropenia resolution (P = 0.02), MIC group (P = 0.096), and Pitt (P = 0.52) were included in the multivariable model. Conclusion DAP MIC should be considered when choosing therapy for VRE BSI among neutropenic oncology patients, particularly those expected to have prolonged neutropenia and those with persistently positive cultures. Disclosures All authors: No reported disclosures.


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