bluuebunny/crossref_metadata_2025 huggingface dataset:
Predicting Vancomycin-Resistant Enterococci (VRE) and Carbapenem-Resistant Organism (CRO) Colonization in the Intensive Care Unit
Authors: Çaǧlayan Çaǧlar , Levin Scott , Milstone Aaron Michael , Tamma Pranita , Simner Patricia , Goodman Katherine , Amoah Joe , Smith Aria , Toerper Matt , Barnes Sean , Klein Eili
Published: November 2020

Background:
Rapidly identifying patients colonized with multidrug-resistant organisms (MDROs) upon ICU admission is critical to control and prevent the spread of these pathogens in healthcare facilities. Electronic health records (EHR) provide a rich source of data to predict the likelihood of MDRO colonization at admission, whereas surveillance methods are resource intensive and results are not immediately available. Our objectives were (1) to predict VRE and CRO colonization at ICU admission and (2) to identify patient subpopulations at higher risk for colonization with these MDROs. Methods: We conducted a retrospective analysis of patients aged ≥16 years admitted to any of 6 medical or surgical intensive care units (ICU) in the Johns Hopkins Hospital from July 1, 2016, through June 30, 2018. Perirectal swabs were collected at ICU unit admission and were tested for VRE and CRO. Patient demographic data, prior hospitalizations, and preadmission clinical data, including prior medication administration, prior diagnoses, and prior procedures, were extracted to develop prediction models. We employed the machine-learning algorithms logistic regression (LR), random forest (RF), and XGBoost (XG). The sum of sensitivity and specificity (ie, Youden’s index) was selected as the performance metric. Results: In total, 5,033 separate ICU visits from 3,385 patients were included, where 555 (11%) and 373 (7%) admissions tested positive for VRE and CRO, respectively. The sensitivity and specificity of our models for VRE were 78% and 80% with LR, 80% and 82% with RF, and 77% and 87% with XG. Predictions for CRO were not as precise, with LR at 73% and 53%, RF at 81% and 48%, and XG at 69% and 61%. The XG algorithm was the best-performing algorithm for both VRE and CRO. Prior VRE colonization, recent (<180 days) long-term care facility stay, and prior hospitalization >60 days were the key predictors for VRE, whereas the primary predictor for CRO colonization was prior carbapenem use. Conclusions: We demonstrated that EHR data can be used to predict >75% of VRE positive cases with a <15% false-positive rate and ~70% of CRO cases with a <40% false-positive rate. Future studies using larger sample sizes may improve the prediction accuracy and inform model generalizability across sites and thus reduce the risk of transmission of MDROs by rapidly identifying MDRO-colonized patients.

Funding: This work was funded by the Centers for Disease Control and Prevention (CDC) Epicenters Program (Grant Number 1U54CK000447) and the CDC MInD-Healthcare Program (Grant Number 1U01CK000536).

Disclosures: Aaron Milstone, BD (consulting)
Transmission of Listeriosis in a Neonatal Intensive Care Unit Supported by Whole-Genome Sequencing
Authors: Kim Janice , Rosen Hilary , Angel Kristen , Maroufi Azarnoush , Tweeten Samantha , Lui Jacqueline , Crandall John , Lanier Tracy , Siegel Jane , Kimura Akiko
Published: November 2020

Background: Listeriosis is a rare but serious infectious disease caused by Listeria monocytogenes (LM) and predominantly transmitted through contaminated food. Moreover, 15% of listeriosis cases in the United States are pregnancy associated; nosocomial neonatal transmission in hospitals is extremely rare. In July 2018, the California Department of Public Health (CDPH) was notified of 4 patients, a mother–neonate pair and twin neonates, with listeriosis at the same hospital. The CDPH and San Diego County Health and Human Services Agency initiated an investigation to determine transmission and prevent additional infections. Methods: We reviewed medical records of the neonates and their mothers, interviewed the mothers with a detailed food exposure questionnaire, interviewed healthcare personnel (HCP), and performed an infection control assessment of the neonatal intensive care unit (NICU). CDPH performed whole-genome sequencing (WGS) on LM isolates that were then analyzed by whole-genome multilocus sequence typing (wgMLST) by the Centers for Diseases Control and Prevention (CDC) to assess relatedness in PulseNet, a public health laboratory database. The CDC also performed testing for LM on formalin-fixed placentas from the mother of the twins. Results: During a 1-week period, 4 patients with LM were identified at the hospital. A mother was admitted at 31 weeks gestation with acute abdominal and back pain that progressed with precipitous vaginal delivery and postpartum sepsis. Her neonate was resuscitated, transported to the NICU, underwent a sepsis evaluation, received antibiotics, and was transferred to another hospital within 6 hours. Maternal blood, placenta, and neonatal blood cultures grew LM. Twin neonates, born to an asymptomatic mother and present in the NICU during the index neonate’s stay, developed acute infection 4 and 6 days after the index neonate’s transfer; blood cultures confirmed LM. The LM isolates from the 4 patients were indistinguishable by wgMLST and were not related to other PulseNet isolates. LM was not detected in the twin placentas. There were no common food exposures between the mothers. At least 1 common HCP cared for all 3 neonates. Infection control lapses included lack of proper hand hygiene during the index neonate’s resuscitation and potentially after cleaning and disinfection of the neonate’s incubator. Conclusions: This report provides supportive evidence that nosocomial transmission of LM can occur during a brief NICU stay due to lapses in infection control practices. Strict adherence to standard precautions in the delivery room and NICU is imperative to prevent cross transmission.

Disclosures: None

Funding: None
National Reporting Trend for HO-MRSA Bacteremia LabID Events, 2010–2018
Authors: Jones Karen , Mu Yi , Li Qunna , Nkwata Allan , Soe Minn , Edwards Jonathan , Dudeck Margaret NA
Published: November 2020

Background: The Centers for Disease Control and Prevention’s National Healthcare Safety Network (NHSN) has included surveillance of laboratory-identified (LabID) methicillin-resistant Staphylococcus aureus (MRSA) bacteremia events since 2009. In 2013, the Centers for Medicare & Medicaid Services (CMS) began requiring acute-care hospitals (ACHs) that participate in the CMS Inpatient Quality Reporting program to report MRSA LabID events to the NHSN and, in 2015, ACHs were required to report MRSA LabID events from emergency departments (EDs) and/or 24-hour observation locations. Prior studies observed a decline in hospital-onset MRSA (HO-MRSA) rates in national studies over shorter periods or other surveillance systems. In this analysis, we review the national reporting trend for HO-MRSA bacteremia LabID events, 2010–2018. Method: This analysis was limited to MRSA bacteremia LabID event data reported by ACHs that follow NHSN surveillance protocols. The data were restricted to events reported for overall inpatient facility-wide and, if applicable, EDs and 24-hour observation locations. MRSA events were classified as HO (collected >3 days after admission) or inpatient or outpatient community onset (CO, collected ≤3 days after admission). An interrupted time series random-effects generalized linear model was used to examine the relationship between HO-MRSA incidence rates (per 1,000 patient days) and time (year) while controlling for potential risk factors as fixed effects. The following potential risk factors were evaluated: facility’s annual survey data (facility type, medical affiliation, length of facility stay, number of beds, and number of intensive care unit beds) and quarterly summary data (inpatient and outpatient CO prevalence rates). Result: The number of reporting ACHs increased during this period, from 473 in 2010 to 3,651 in 2018. The crude HO-MRSA incidence rates (per 1,000 patient days) have declined over time, from a high of 0.067 in 2011 to 0.052 in 2018 (Table 1). Compared to 2014, the adjusted annual incidence rate increased in 2015 by 16.38%, (95% confidence interval [CI], 10.26%–22.84%; P < .0001). After controlling for all significant risk factors, the estimated annual HO-MRSA incidence rates declined by 5.98% (95% CI, 5.17%–6.78%; P < .0001) (Table 2). Conclusions: HO-MRSA bacteremia incidence rates have decreased over the past 9 years, despite a slight increase in 2015. This national trend analysis reviewed a longer period while analyzing potential risk factors. The decline in HO-MRSA incidence rates has been gradual; however, given the current trend, it is not likely to meet the Healthy People 2020 objectives. This analysis suggests the need for hospitals to continue and/or enhance HO-MRSA infection prevention efforts to reduce rates further.

Funding: None

Disclosures: None
Infection Prevention Time Required for Construction and Design at a Large Tertiary-Care Hospital, 2019
Authors: Dains Angie , Edmond Michael , Diekema Daniel , Holley Stephanie , Abosi Oluchi , Kukla Mary , Jenn Kyle , Kuse Andy , Miller Robert , Leiden Luke , Salinas Jorge
Published: November 2020

Background: Including infection preventionists (IPs) in hospital design, construction, and renovation projects is important. According to the Joint Commission, “Infection control oversights during building design or renovations commonly result in regulatory problems, millions lost and even patient deaths.” We evaluated the number of active major construction projects at our 800-bed hospital with 6.0 IP FTEs and the IP time required for oversight. Methods: We reviewed construction records from October 2018 through October 2019. We classified projects as active if any construction occurred during the study period. We describe the types of projects: inpatient, outpatient, non–patient care, and the potential impact to patient health through infection control risk assessments (ICRA). ICRAs were classified as class I (non–patient-care area and minimal construction activity), class II (patients are not likely to be in the area and work is small scale), class III (patient care area and work requires demolition that generates dust), and class IV (any area requiring environmental precautions). We calculated the time spent visiting construction sites and in design meetings. Results: During October 2018–October 2019, there were 51 active construction projects with an average of 15 active sites per week. These sites included a wide range of projects from a new bone marrow transplant unit, labor and delivery expansion and renovation, space conversion to an inpatient unit to a project for multiple air handler replacements. All 51 projects were classified as class III or class IV. We visited, on average, 4 construction sites each week for 30 minutes per site, leaving 11 sites unobserved due to time constraints. We spent an average of 120 minutes weekly, but 450 minutes would have been required to observe all 15 sites. Yearly, the required hours to observe these active construction sites once weekly would be 390 hours. In addition to the observational hours, 124 hours were spent in design meetings alone, not considering the preparation time and follow-up required for these meetings. Conclusions: In a large academic medical center, IPs had time available to visit only a quarter of active projects on an ongoing basis. Increasing dedicated IP time in construction projects is essential to mitigating infection control risks in large hospitals.

Funding: None

Disclosures: None
Legal Requirements for Infection Prevention and Control Training Among Healthcare Personnel
Authors: Weil Lauren , Limeres Alexa , KC Astha , Holmes Carissa , Holiday Tara , Schaefer Melissa K , Perz Joseph
Published: November 2020

Background: When healthcare providers lack infection prevention and control (IPC) knowledge and skills, patient safety and quality of care can suffer. For this reason, state laws sometimes dictate IPC training; these requirements can be expressed as applying to various categories of healthcare personnel (HCP). We performed a preliminary assessment of the laws requiring IPC training across the United States. Methods: During February–July 2018, we searched WestlawNext, a legal database, for IPC training laws in 51 jurisdictions (50 states and Washington, DC). We used standard legal epidemiology methods, including an iterative search strategy to minimize results that were outside the scope of the coding criteria by reviewing results and refining search terms. A law was defined as a regulation or statute. Laws that include IPC training for healthcare personnel were collected for coding. Laws were coded to reflect applicable HCP categories and specific IPC training content areas. Results: A total of 278 laws requiring IPC training for HCP were identified (range, 1–19 per jurisdiction); 157 (56%) did not specify IPC training content areas. Among the 121 (44%) laws that did specify IPC content, 39 (32%) included training requirements that focused solely on worker protections (eg, sharps injury prevention and bloodborne pathogen protections for the healthcare provider). Among the 51 jurisdictions, dental professionals were the predominant targets: dental hygienists (n = 22; 43%), dentists (n = 20; 39%), and dental assistants (n = 18; 35%). The number of jurisdictions with laws requiring training for other HCP categories included the following: nursing assistants (n = 25; 49%), massage therapists (n = 11; 22%), registered nurses (n = 10; 20%), licensed practical nurses (n = 10; 20%), emergency medical technicians and paramedics (n = 9; 18%), dialysis technicians (n = 8; 18%), home health aides (n = 8;16%), nurse midwives (n = 7; 14%), pharmacy technicians (n = 7; 14%), pharmacists (n = 6; 12%), physician assistants (n = 4; 8%), podiatrists (n = 3; 6%), and physicians (n = 2; 4%). Conclusions: Although all jurisdictions had at least 1 healthcare personnel IPC training requirement, many of the laws lack specificity and some focus only on worker protections, rather than patient safety or quality of care. In addition, the categories of healthcare personnel regulated among jurisdictions varied widely, with dental professionals having the most training requirements. Additional IPC training requirements exist at the facility level, but this information was not analyzed as a part of this project. Further analysis is needed to inform our assessment and identify opportunities for improving IPC training requirements, such as requiring IPC training that more fully addresses patient protections.

Funding: None

Disclosures: None
Population Standardized Infection Ratio (pSIR): A More Meaningful Reflection of Performance With Reduction in Device Use
Authors: Sharma Mamta , Bufalino Angelo , Huang Ren-huai , Sturm Lisa , Service Network , Erlinger Thomas , Fakih Mohamad
Published: November 2020

Background: Interventions to reduce unnecessary device use may select a higher-risk population, leading to a paradoxical increase in SIR for some high-performing facilities. The standardized utilization ratio (SUR) adjusts for device use for different units and facilities. We evaluated the performance of a population SIR (pSIR) metric compared to device SIR (dSIR) in the situations of increased, decreased, and no change in SUR for a large system. Methods: We evaluated hospitals that had a reduction, increase, and no substantial change (±5% relative change) in their SUR in FY2019 (July 2018–June 2019) compared to baseline FY2017 (July 2016–June 2017). The dSIR (defined as Σ observed events divided by Σ predicted events based on actual device days) and pSIR (defined as Σ observed events divided by Σ predicted events based on predicted device days). We calculated the cumulative attributable difference (CAD) for catheter-associated urinary tract infections (CAUTIs) for the same facilities based on dSIR and pSIR. Results: Overall, the system SUR dropped from 0.92 in 2017 to 0.85 in 2019 (7.3% decrease). Of the 48 hospitals included, 25 (52%) exhibited a drop, 13 (27%) exhibited an increase, and 10 (21%) had no change in SUR during 2019. For hospitals in which SUR decreased, the dSIR decreased by 15.9% from 0.88 to 0.74, and the pSIR decreased by 32.3% from 0.85 to 0.58 (Table 1). In 2019, the CAD for CAUTI to a target SIR of 1 was 133 for the dSIR compared to 181 for the pSIR, and 36% more events were avoided. Conclusions: The traditional SIR (dSIR) underestimated improvements in infection rates compared to the pSIR because it failed to account for reduced device utilization associated with infection prevention interventions. The pSIR accounts for overall risk of infection associated with device exposure in a population and better reflects the efficacy of prevention efforts compared to dSIR. The pSIR should be considered in situations in which interventions have led to substantial reductions in device use.

Funding: None

Disclosures: None
Prevalence of Healthcare-Associated Infections and Antimicrobial Resistance in Rural Alberta Acute-Care Facilities
Authors: Ellison Jennifer , Chandran Uma , Happe Jennifer , Shen Ye , Shurgold Jayson , Taylor Geoffrey , Bush Kathryn
Published: November 2020

Background: Antibiotic-resistant organisms (AROs) are associated with greater disease severity and poor outcomes. Previous studies have investigated AROs and healthcare-associated infections (HAIs) within larger urban acute-care settings, but similar data for rural settings are scarce. In this stud, we aimed to fill this gap. Methods: Data on antimicrobial resistance (AMR), additional precautions and HAI were collected from 8 rural Alberta acute-care facilities over a 24-hour period from February 4–28, 2019. Data were gathered as part of the national Canadian, Rural, and Northern Acute Care Point Prevalence (CNAPP) survey. All inpatients on included units were reviewed. CNAPP protocol surveillance definitions were used. Results: In total, 961 patients were surveyed, of whom 94 of 961 (9.8%) were on additional precautions. Contact precautions only were most common (54 of 94, 57.4%) and were predominantly in place for MRSA (30 of 94, 31.9%). Of 961 patients, 100 (~10%) met the surveillance definitions for any infection. The most common infections were skin and soft-tissue infections (29 of 100, 29.0%) and bloodstream infections (28 of 100, 28.0%). An HAI occurred in 30 of 961 patients (3.1%); the most common HAIs were surgical site infections (8 of 30, 26.7%) and urinary tract infections (8 of 30, 26.7%). An antimicrobial was prescribed to 333 of 961 patients (34.6%) at the time of the survey, with ceftriaxone the most commonly prescribed (68 of 333, 20.4%). Most patients receiving an antimicrobial (237 of 333, 71.2%) did not meet the surveillance definition for any infection. The most common reason for any antimicrobial administration was empiric therapy (167 of 333, 50.1%). Conclusions: Investigations into antimicrobial use and the burden of HAIs in rural acute-care settings have been limited. In this study, we (1) established provincial baseline data for burden of disease in these facilities due to HAIs and (2) demonstrated that antimicrobial use is common, though most patients who were prescribed an antimicrobial did not meet study definitions for infection. It will be important to continue this type of surveillance in this understudied population to monitor the burden of HAIs over time, to establish antimicrobial utilization trends, and to continue to identify potential antimicrobial stewardship initiatives.

Funding: None

Disclosures: None
Effectiveness of Annual Flu Vaccination Until Week Four of the 2019–2020 Season
Authors: Chico-Sánchez Pablo , Mora-Muriel Juan Gabriel , Gras-Valentí Paula , Jimenez-Sepulveda Natali J. , Algado-Sellés Natividad , Gomez-Sotero Isel , Soler Victor , Esclapez-Martinez Ana , Canovas-Javega Sandra , Sanchez-Paya Jose
Published: November 2020

Background: Annual flu vaccination is the most effective way to prevent the disease and its complications. Vaccine effectiveness (EV) varies from season to season, requiring annual re-evaluation. The objective of this study was to estimate the preliminary effectiveness of the influenza vaccine until epidemiological week 4 of the 2019–2020 season, in patients admitted to a tertiary-level hospital. Method: We conducted a case-control study at University General Hospital, Alicante, Spain, during the 2019–2020 season. We included all patients hospitalized with influenza confirmed by laboratory test (ie, PCR positive for influenza) during the period between epidemiological week 40 of 2019 and epidemiological week 4 of 2020. These were considered cases, and those with clinical suspicion of influenza and negative RT-PCR were considered controls. Vaccination coverage was calculated in cases and in controls, determining the odds ratio. We calculated the vaccine effectiveness (VE) and its 95% confidence interval using the following formula: VE = (1 − odds ratio) ×100. Result: We included 545 patients: 61 cases and 484 controls. The overall EV for influenza cases prevention was 40.7% (95% CI, −17.1 to 70.1), and for those >1 year of age, the overall EV was 56.9% (95% CI, 13.9–78.5). Conclusion: The 2019–2020 Influenza vaccine was effective in preventing influenza cases in patients admitted up to week 4 of the 2019–2020 season. These results are preliminary and may vary; they should be re-evaluated at the end of the season.

Funding: None

Disclosures: None
10-Year Trends in Urine Testing and Treatment in Patients with Spinal Cord Injury: An Opportunity for Targeted Stewardship
Authors: Nelson Alison , Gupta Kalpana , Strymish Judith , Nee Maura , Linsenmeyer Katherine
Published: November 2020

Background: Guidelines regarding asymptomatic bacteriuria (ASB) have consistently recommended against screening and treatment in most circumstances. However, screening of patients with spinal cord injury (SCI) is common practice and in some cases is a formal protocol at the organizational level. A previous study found that more than one-third of patients with ASB detected on routine screening cultures performed at annual visits in 2012 received antibiotics. However, the role of antibiotic stewardship has become more prominent over the last decade. We hypothesized that diagnostic and therapeutic stewardship efforts may be impacting the practice of annual urine-culture screening for SCI patients. We evaluated urine culture screening and treatment rates over a 10-year period. Methods: Patients with SCI seen in the VA Boston HCS for an annual exam in 2018 were eligible for inclusion and formed the baseline cohort for this study. Annual visits for the cohort over a 10-year period (January 1, 2009–December 31, 2018) were included in the analysis. Electronic data collection and manual chart review were utilized to capture outcomes of interest including urine culture, antibiotic prescriptions and indication within 15 days, and documentation of urinary or infectious symptoms. The main outcomes were (1) rate of urine cultures performed ±3 days of the visit, (2) rate of antibiotic treatment in asymptomatic patients, and (3) trend over time of urine culturing and treating. The χ2 test for trend was used to compare rates over time. Results: In total, 1,962 annual visits were made by the 344 unique patients over the 10-year period and were available for analysis. Among these, 639 (32.6%) visits had a urine culture performed within 3 days. The proportion of visits with a collected culture decreased from (109 of 127) 85.8% of visits in 2009 to (65 of 338) 19.2% of visits in 2018, P ≤ .001 (Fig. 1). In the treatment analysis, 39 visits were excluded for active symptoms, concern for uncontrolled infection, or prophylaxis as antibiotic indication. Among 600 remaining screening cultures, 328 had a bacterial pathogen or >100,000 mixed colonies consistent with ASB. Overall, 51 patients (17%) received antimicrobials. The rate of antibiotic treatment for ASB did not significantly decrease over time pP = 0.79 (Fig. 2). Conclusions: Over a 10-year period of annual SCI visits, the proportion of visits with a urine culture performed as routine screening significantly and consistently decreased. However, the rate of treatment for positive urine cultures remained consistent. These data support targeted diagnostic stewardship in this population to reduce unnecessary antibiotic use.

Funding: None

Disclosures: None
A Journey of Hand Hygiene (HH) from Basic to Advance Level at a Tertiary-Care Hospital in Karachi, Pakistan
Authors: Roshanali Rozina
Published: November 2020

Background: According to the WHO, hand hygiene is the primary measure to reduce infections. It is a simple act, but the lack of compliance among healthcare workers has been a great concern for all healthcare facilities. Healthcare facilities can perform a situation analysis of hand hygiene promotion and practices according to a set of indicators designed by the WHO in the form of a hand hygiene self-assessment framework. Results can be used to identify areas of improvement and to develop an action plan and strategies accordingly. Low- or middle-income country (LMIC) initial scoring within this framework was 195 points (ie basic level); thus, we aimed to achieve the advanced level, with a score of > 375. Methods: The WHO hand hygiene self-assessment framework is a diagnostic tool to identify key issues requiring attention and improvement. Repeated assessments are done to document the progress over time, which allows a health-care facility to track their progress in hand hygiene resources, to conduct promotion activities, to plan their actions, and to achieve improvement and sustainability. We developed an action plan under each category of WHO framework that included: system change, training and education, evaluation and feedback, reminders in workplace, and institutional safety climate for hand hygiene. We implemented the following measures: point-of-care hand hygiene stations were made available at all bedsides; mandatory training was introduced for all healthcare workers, and consumption of hand rub or hand sanitizers and liquid soap was monitored as a consumption indicator. In addition, posters were placed in all wards and clinics, time was dedicated for HH promotion, and a May 5th plan was implemented. HH leaders, role models, and champions were identified from each discipline. Patients were involved in HH promotion; HH leaflets were given to patients, HH e-learning tools were implemented, and a system for personal accountability was initiated, as well as a buddy system for new employees. Results: After implementation of multiple strategies in each section of the WHO self-assessment framework, we our overall score increased from basic (ie, 195) to advanced (ie, 395). In addition, category score increased in system change from 60 to 85, in training and education from 35 to 100, in evaluation and feedback from 52.5 to 100, in reminders in workplace from 17.5 to 45, and in institutional safety climate from 30 to 65. Conclusions: The WHO hand hygiene self-assessment framework should be utilized by all the hospitals in LMICs as a guide to improve hand hygiene levels.

Funding: None

Disclosures: None
Acquisition Rate of Scabies in Employees After Care of an Undiagnosed Crusted Scabies Patient
Authors: Crowley Patrick , Ramirez Hector , Ochoa Brennan , Brust Karen
Published: November 2020

Background: Scabies is a contagious dermatosis caused by human mites, (Sarcoptes scabei, variant hominis). In crusted (Norwegian) scabies, the burden of mite infestation is higher and up to 2 million per person, facilitating easy skin-to-skin transmission and nosocomial transmission. We describe a case of undiagnosed crusted scabies and subsequent transmission to employees in our hospital. Methods: A 90-year-old female was admitted to our 636-bed, nonprofit, academic hospital for 22 days prior to diagnosis of crusted scabies by skin scraping. The patient was admitted to 2 different medical-surgical wards and the medical intensive care unit. We collected healthcare worker (HCW) demographics, including department of service, age, sex, pregnancy, and breastfeeding status in those who were at risk of exposure. We interviewed HCWs at 2 time points and collected information related to infestation, allergies to treatment, acceptance of empiric treatment, and whether employee was furloughed. Results: On initial screening, 20 of 124 at-risk HCWs had symptoms (Fig.). Most had a “new onset raised red rash or new pimple like rash (not on face), or linear rash” and 4 had “new onset uncontrollable itching.” All 124 HCWs were contacted 28 days later. One HCW that had not been compliant with prophylaxis became symptomatic and was diagnosed with scabies by dermatology. Of the remaining 20 HCWs, 3 were still having symptoms (2 had itching and 1 had a rash and a scrape performed by dermatology with confirmation of mites). All 3 were retreated with ivermectin. Overall, 21 of 124 exposed HCWs were ultimately symptomatic. Conclusions: During a 22-day admission of an undiagnosed and unisolated elderly patient with crusted scabies, the scabies mite was transmitted to 21 HCWs for an acquisition rate of 17%. Persistence of symptoms after treatment with permethrin occurred in 14%. The infectivity of this disease necessitates early recognition and infection control measures.

Funding: None

Disclosures: None
Adjustments to an Existing Colorectal Surgical Site Infection Prevention Bundle Lead to Fewer Infections
Authors: McMullen Kathleen , Dunn Gaylene , McDuffie Sheri , Freeman Bradley
Published: November 2020

Background: Surgical site infections (SSI) related to colorectal procedures are detrimental to patients and publicly reportable events. Our institution implemented a successful bundle of interventions to decrease SSI rates in 2014. In 2018, compliance started to wane, with a concurrent increase in infections. In an effort to enhance compliance and incorporate up-to-date information, we convened a multidisciplinary team to streamline this process. Methods: Our team evaluated published studies on successful bundle components and updates to professional guidelines for SSI prevention to determine adjustments. Modifications included allowing surgeon preference for (rather than mandating) wound protector use and simplification of clean closure protocol (determined by intraoperative contamination, leading to more efficient closure time). In addition, measures were added to achieve perioperative patient optimization (maintenance of normothermia, prevention of intraoperative hypoxia, tighter glucose control and postoperative bathing). The bundle was implemented in stages starting January 2019. SSI rates were monitored throughout the process using NHSN definitions, and rates were compared using χ2 analysis (Epi Info, CDC). Results: From 2015 to 2017, bundle compliance was 90%, and 8 SSIs (rate, 3.8 per 100 procedures) were detected (Table 1). In 2018, compliance was 82%, with 4 SSIs (rate, 6.6 per 100 procedures). From January through September 2019, SSI rates decreased to a rate of 4.8 per 100 procedures, with notable increase in superficial SSI, with zero cases of deep or organ-space infections. Feedback from operating-room personnel indicated their commitment to bundle compliance and perceived intraoperative time savings. Conclusions: Revamping an existing colorectal SSI bundle, including relaxation of time-intensive and expensive intraoperative measures and increased focus on evidence-based guidelines, resulted in decreased deep-organ space SSI rates, as well as increased satisfaction from procedural team members. Successful implementation of care pathways to prevent infections is an iterative process and requires the engagement of practitioners.

Funding: None

Disclosures: None
Antibiotic Stewardship for Nursing: Can E-learning Be a First Step?
Authors: Catanzaro Mary T.
Published: November 2020

Background: The CDC and The Joint Commission have called for an interdisciplinary approach to antibiotic stewardship implementation. The healthcare team should consist of infectious disease physicians, pharmacists, infectious disease pharmacists, infection preventionists, microbiologists, and nurses. The scant literature to date has looked at nurses’ attitudes and beliefs toward participating in antibiotic stewardship and have identified several factors that contribute to the lack of uptake by nurses: lack of education around stewardship, poor communication among healthcare providers, and hospital or unit culture, among others. Additionally, nurses’ lack of interest in what would be more work or not within their scope of work was put forth as an additional factor by infection preventionists and pharmacists as a barrier to implementation. Method: An investigator-developed online survey was used to assess the usefulness of 3 investigator-developed educational e-learning modules that encompassed the role of nurses in antibiotic stewardship, pharmacy and laboratory topics related to antimicrobial stewardship, as well as the nurses’ attitudes toward their participation in such activities. Results: Participants took the survey after review of the 3 e-learning modules. The results indicate that, contrary to what pharmacists and infection preventionists thought, 82% of nurses felt they should contribute to and be part of the antimicrobial stewardship team. Additionally, after completing the modules, 73% felt more empowered to participate in stewardship discussions with an additional 23% wanting more education. 100% felt that they learned information that they could utilize in their everyday work. Barriers to implementation of stewardship activities on their unit included lack of education (41%), hospital or unit culture (27%), with only 4% citing they did not feel it was their job or that they had anything to contribute to a discussion. Also, 24% felt that there were no obstacles to participation. Conclusions: Surprisingly, most nurses who took this educational series and survey felt that they should be part of the antibiotic stewardship team. As cited previously from the literature, education and culture need to be addressed to overcome the nurses’ barriers to stewardship involvement. E-learning can provide an easy first step to educating nurses when time permits and can provide a good springboard for discussion on the units and with physicians and pharmacists. For a copy of the modules, please contact the author.

Funding: None

Disclosures: None
Assessing the Potential Impact of a Long-Acting Skin Disinfectant in the Prevention of MRSA
Authors: Lofgren Eric
Published: November 2020

Background: Healthcare-associated transmission of methicillin-resistant Staphylococcus aureus (MRSA) remains a persistent problem despite advances in prevention. The use of chlorhexidine gluconate (CHG) as a means of decolonizing patients, either through targeted decolonization or daily bathing, is a frequently used measure to supplement other MRSA reduction interventions. However, there is room for new and innovative decolonizing agents. We explored the potential utility of a long-acting CHG-like disinfectant with a persistent protective effect as well as an immediate decolonizing action in the prevention of MRSA acquisition as well as the subsequent development of clinical illness and MRSA-related mortality. Methods: We modeled MRSA transmission throughout an 18-bed intensive care unit, based on previously published models. A baseline model with no daily decolonizing protocol was used as a baseline and was compared to a scenario assuming that patients were bathed with CHG, which decolonizes them but provides no ongoing protection, as well as a scenario involving a hypothetical treatment that both decolonizes and provides ongoing protection from subsequent colonization. We varied the duration and efficacy of this protection to fully explore the potential utility of such a treatment. Results: The results of the simulations are shown in Fig. 1, where duration and efficacy of protection varied. The number of MRSA acquisitions from each combination is depicted as a single point, with blue points indicating correspondingly fewer MRSA acquisitions. Overall, improved efficacy of the hypothetical disinfectant resulted in immediate improvements in MRSA acquisition rates when compared to the baseline. To see major improvements in the MRSA acquisition rate due to the duration of infection, that duration must be well above 10 hours in many scenarios. There is also little evidence of synergy between the two. Conclusions: Based on recent results suggesting CHG has a relatively modest per-use efficacy (<.20), there is room for improvement in the formulation and administration of decolonizing agents. Although there has been considerable excitement about the possibility of long-acting agents that not only decolonize but provide long-acting protection against colonization, these results suggest that such protection would only result in markedly decreased acquisition rates only if that duration of protection was extremely long, or if the agent itself was also considerably more efficacious than CHG. These results may be used to help consider the necessary study size for clinical studies of these agents in the future, or to set research priorities and properly calibrate expectations.

Funding: None

Disclosures: None
Automated Prediction of Surgical Site Infection Coronary Artery Bypass (CABG) Grafting Surgery
Authors: Souza Flávio , Couto Braulio , Conceição Felipe Leandro Andrade da , da Silva Gabriel Henrique Silvestre , Dias Igor Gonçalves , Rigueira Rafael Vieira Magno , Pimenta Gustavo Maciel , Martins Maurilio , Almeida Aline Castro de , Amaral Filipe Batista do , Januário Guilherme Brangioni , Caldeira Maria Luiza Neves , Guerra Miriam Alice , Moraes Rayane Thamires Oliveira
Published: November 2020

Background: In 5 hospitals located in Belo Horizonte city (>3,000,000 inhabitants) a focused survey on surgical site infection (SSI) was performed in patients undergoing CABG surgery. We statistically evaluated such incidences to enable study of the prediction power of SSI through pattern recognition algorithms, in this case the multilayer perceptron (MLP) artificial neural networks. Methods: Data were collected between July 2016 and June 2018 on SSI by the hospital infection control committees (CCIHs) of the hospitals involved in the research. We collected all data used in the analysis during their routine SSI surveillance procedures. The information was forwarded to the NOIS (Nosocomial Infection Study) Project, which uses the SACIH (Automated Hospital Infection Control System) software to collect data from a sample of hospitals participating voluntarily in the project. After data collection, 3 procedures were performed: (1) a treatment of the collected database for use of intact samples; (2) a statistical analysis on the profile of the hospitals collected; and (3) an assessment of the predictive power of 5 types of MLP (ie, backpropagation standard, momentum, resilient propagation, weight decay, and quick propagation) for SSI prediction. MLPs were tested with 3, 5, 7, and 10 hidden layer neurons and a database split for the resampling process (65% or 75% for testing and 35% or 25% for validation). They were compared by measuring the AUC (area under the curve; range, 0–1) presented for each of the configurations. Results: From 666 initial data, only 278 were able for analysis. We obtained the following statistics: 9.35% manifested SSIs; length of stay varied from 1 to 119 days, with ~40% staying between 10 and 19 days; 15.1% of the patients died. Regarding the prediction power of SSI, the experiments have a maximum value of 0.713. Conclusions: Despite the considerable loss rate of >50% of the database samples due to the presence of noise, it was possible to have a relevant sampling to evaluate the profile of hospitals in Belo Horizonte. In addition, for the predictive process, although some configurations had results equal to 0.5, others reached 0.713, which indicates that the automated SSI monitoring framework for patients undergoing coronary artery bypass grafting surgery is promising. To optimize data collection and to enable other hospitals to use the SSI prediction tool (available at www.sacihweb.com), a mobile application was developed.

Funding: None

Disclosures: None
Beyond Bundles in Prevention of CAUTI and UTI’s
Authors: Ford Delvina , Haupt Bonnie , Rochon Renada , Bartoshevich Debra , Rodriguez Monalisa , Zuluaga Jose Cadena
Published: November 2020

Background: Urinary tract infections (UTIs) are common healthcare-associated infections. Evidenced-based practice (EBP) successes of catheter associated urinary tract infection (CAUTI) bundles has resulted in rates decreasing >50% in community-based nursing homes. The South Texas Community Living Center (CLC SA), our 42-bed long-term care and rehabilitation center, conducts routine infection prevention surveillance. During routine surveillance, the infection prevention team noticed an increase in UTI percentages and CAUTI rates. Thus, we sought to increase compliance with standard CAUTI bundles, and we implemented an intervention called the “bladder bundle.” Methods: A multidisciplinary team (ie, infection preventionist, clinical nurse leader, simulation director, educator, leadership and frontline staff champions) identified and evaluated practices through documentation of audits and safety rounds during April and May of 2017 (FY19 QTR 3). The comprehensive bladder bundle was initiated in June 2017, based on EBP interventions and included education for staff with audit and feedback. The team reviewed the literature and expanded the bladder bundle to include a comprehensive urinary note and oral hydration program for the veterans in addition to the standard CAUTI bundles (ie, minimize catheter use, use with appropriate indications, consider alternatives to catheters, proper insertion and securement). In May 2018, a facility-wide, hospital-wide initiative focused on a new urinary catheter insertion kit, insertion competencies and perineal care to improve outcomes. This initiative was added to our bladder bundle for CLC SA. Results: Before the intervention (FY16 Q3 to FY17 Q2), percentages of veterans with a UTI had increased to 4.65%, in FY17 Q3, this rate had increased to 11.76%. After the intervention (FY17 Q4 to FY19 Q3) the percentage dropped significantly to 0%, and this rate has now been sustained for 8 quarters. Our CLC SA has remained at zero harm and has no NHSN CAUTI has occurred since October 2017 (FY18Q1). The catheterization in bladder days has decreased from 162 days in FY14 to 49 in FY18, and for the first 2 quarters of FY19, there were only 25 days. For the last 8 quarters, documentation compliance has increased, as has use of BB interventions. Conclusions: The continuous improvement project targeted within the CLC SA, with education to staff, audit and feedback tools, and a comprehensive urinary note with the oral hydration program in combination with the standard CAUTI bundles, have improved veteran health outcomes and have expanded provider and nursing practices. The interprofessional team approach enhanced the success of this project.

Funding: None

Disclosures: None
Blackwater Event: Water Management and Remediation at a Major Medical Center
Authors: Sampathkumar Priya , Apenhorst Debra , Kubly Al , Keller Mark , Wright Alan
Published: November 2020

Background: The CMS and the CDC recommend that all healthcare facilities have an effective water management program (WMP). Our WMP has been in place since 2010; it includes members from facilities operations, infection prevention and control, environmental services, and industrial hygiene. The team meets regularly to discuss current water issues, reviews validation data and water testing reports. Description of event: In April 2018, we suddenly experienced discolored water and sediment at multiple water fixtures throughout the 3.3 million square-foot hospital campus. The hospital incident command structure (HICS) was activated to assist in investigating and managing the situation. Immediate response: Water was deemed unsafe while the cause was being investigated. Bottled water was distributed to 950 hospital patients, and >8,000 staff and visitors. The impact included alternative methods for hand hygiene, the use of bottled water for food preparation and drinking, and the elimination of showers for patients and staff. The dialysis unit used an independent water supply that was not affected. Investigation and remediation: The hospital had 2 sources of domestic cold water: municipal water and a private well that had been in use since 1912. An investigation revealed that the well pump had malfunctioned, drawing gravel into the potable water supply. This overwhelmed the plumbing, blocked toilets and likely dislodged biofilm from the pipes. Early testing showed high levels of corrosion byproducts (ie, iron, copper, and lead) and bacterial contamination in the water, including presence of Legionella. Remediation involved isolating the well, switching to municipal water as the sole source of potable water, flushing the system, and retesting. Overall, 105 technicians flushed the water system including 6,000 water fixtures, 125 drinking fountains, and 95 emergency showers and eyewashes; they sanitized and cleaned 130 ice machines and tested 240 backflow preventers. We retested 437 water samples after remediation; all parameters had returned to the normal range. The existing water process flow diagrams were used to guide sampling for water testing. Conclusions: The hospital’s water system was brought back on line in 78 hours after the first report of “black water.” An active, mature WMP with multiple facilities technicians trained in water sampling enabled a quick response. Coordination through the HICS structure streamlined the response and enabled clear communication throughout the process.

Funding: None

Disclosures: None