Clinical pathways and diagnostic reasoning: A qualitative study of pediatric residents' and hospitalists' perceptions

BACKGROUND

Clinical pathways are evidence-based guidelines adapted to local settings. They have been shown to improve patient outcomes and reduce resource utilization. However, it is unknown how physicians integrate clinical pathways into their clinical reasoning.

METHODS

We conducted a single-center qualitative study involving one-on-one semi-structured interviews of pediatric residents and pediatric hospitalist attendings between August 2021 and March 2022. Interviews were audio-recorded and professionally transcribed. We utilized a qualitative descriptive framework to code data and identify themes.

RESULTS

We interviewed 15 pediatric residents and 12 pediatric hospitalists. Thematic analysis of interview transcripts revealed four themes related to physician utilization of and experience with clinical pathways: (1) utility as a tool, (2) means of standardizing care, (3) reflection of institutional culture, and (4) element of the dynamic relationship with the clinician diagnostic process. These themes were generally common to both residents and attending physicians; however, some differences existed and are noted when they occurred.

CONCLUSIONS

Clinical pathways are part of many clinicians' diagnostic processes. Pathways can standardize care, influence the diagnostic process, and express local institutional culture. Further research is required to ascertain the optimal clinical pathway design to augment and not inhibit the clinician's diagnostic process.

Severity of illness and mortality among children admitted to a tertiary referral hospital in Botswana: A secondary data analysis of a prospective cohort study

Objectives

Data on triage practices of children admitted to Princess Marina Hospital in Gaborone, Botswana is limited. The inpatient triage, assessment, and treatment score was developed for low resource settings to predict mortality in children. We assess its performance among children admitted to Princess Marina Hospital and their demographic, clinical, and risk factors for death.

Methods

This was a secondary data analysis of a prospective cohort study comprising 299 children ages 1 month to 13 years admitted June to September 2018. Descriptive statistics, bivariate analysis, and multivariate logistic regression were used. Sensitivity and specificity data were generated for the inpatient triage, assessment, and treatment score.

Results

Thirteen children died (13/284, 4.6%). Comorbidity (adjusted odds ratio 4.0, p = 0.020) and high inpatient triage, assessment, and treatment score (adjusted odds ratio 5.0, p = 0.017) increased odds of death. The area under the receiver operating characteristic curve was 0.81. Using inpatient triage, assessment, and treatment cutoff of 4, the sensitivity, specificity, and likelihood ratio were 31%, 94%, and 5.0, respectively.

Conclusion

Implementing the inpatient triage, assessment, and treatment score in low resource settings may improve identification, treatment, and evaluation of the sickest children.

2365. Fostering the Future: Improving Infection Prevention and Control Education in Pediatric Infectious Diseases Fellowship

Background

Infection prevention and control (IPC) is a potential area of career specialization for infectious diseases (ID) fellows. However, ID fellows are not consistently involved in IPC operations or content expertise.

IPC education for ID fellows at Children’s Hospital of Philadelphia relied upon lectures, self-study, and some in-person shadowing. ID fellows had few experiences engaging in surveillance, working with data, or discussing approaches to common clinical IPC scenarios.

We aimed to develop an IPC curriculum for pediatric ID fellows focusing on experiential learning relevant to clinical and operational practice as an ID physician.

Methods

We used the Kern model to systematically design a curriculum addressing identified gaps in IPC education. Areas of need included: aligning IPC curriculum content with the physician role, improving tracking of core IPC experiences (e.g. surveillance, bedside reviews), incorporating education on IPC operations, and enhancing connection between ID fellows and IPC non-physician team members.

We partnered an ID fellow and an IPC program manager to lead development of the new IPC curriculum. The designed curriculum consists of 3 weeks separated throughout fellowship focusing on: 1) IPC core concepts, and 2) IPC operational skills. Weeks 1 and 2 are a primer on IPC as a field including emphasis on the multidisciplinary roles involved. Week 3 focuses on the role of IPC within overall hospital operations. An optional 4^th week is available for those pursuing a career in IPC.

Results

We have implemented 2 weeks of the new curriculum. The post-implementation feedback is still in progress as only 2 of the 3 weeks has been implemented. Initial feedback highlighted the interactive nature of the curriculum and organized delivery. Additionally, feedback from IPC team members highlighted the improved communication with fellows and better understanding of a fellow’s role.

IPC Curriculum Overview

An overview of the newly developed IPC curriculum for pediatric ID fellows. Week 1 and 2 are focused on IPC fundamentals, Week 3 is dedicated to operational knowledge and skill, and an optional week 4 exists for those particularly interested in IPC as a career.

IPC Foundations "Passport"

This is an example of the passport tool for tracking experiences during the IPC rotation weeks. This is used by both the fellow and the IPC division to help create shared awareness of a fellow's experiences and better identify any gaps.

Key Elements of Operations Week.

This schematic illustrates the key components of week 3 (Operations) of the IPC curriculum. The 3 main elements include collaborating on an IPC-related project, didactics of IPC emergencies (with opportunity to answer IPC calls with infection preventionists and IPC medical directors), and a focus operational skills essential to being a leader within IPC.

Conclusion

Through collaboration between the ID fellowship program and IPC, we redesigned the IPC curriculum for fellows. While implementation of the curriculum is still in progress with ongoing plans for evaluation, we have demonstrated success in engaging a multidisciplinary team to develop a curriculum for ID fellows focused on an operational (rather than strictly content) field.

Disclosures

All Authors: No reported disclosures.

Risk factors for mortality in a hospitalised neonatal cohort in Botswana

OBJECTIVES

A disproportionate number of neonatal deaths occur in low/middle-income countries, with sepsis a leading contributor of mortality. In this study, we investigate risk factors for mortality in a cohort of high-risk hospitalised neonates in Botswana. Independent predictors for mortality for infants experiencing either a sepsis or a non-sepsis-related death are described.

METHODS

This is a prospective observational cohort study with infants enrolled from July to October 2018 at the neonatal unit (NNU) of Princess Marina Hospital (PMH) in Gaborone, Botswana. Data on demographic, clinical and unit-specific variables were obtained. Neonates were followed to death or discharge, including transfer to another hospital. Death was determined to be infectious versus non-infectious based on primary diagnosis listed on day of death by lead clinician on duty.

RESULTS

Our full cohort consisted of 229 patients. The overall death rate was 227 per 1000 live births, with cumulative proportion of deaths of 22.7% (n=47). Univariate analysis revealed that sepsis, extremely low birth weight (ELBW) status, hypoxic ischaemic encephalopathy, critical illness and infants born at home were associated with an increased risk of all-cause mortality. Our multivariate model revealed that critical illness (HR 3.07, 95% CI 1.56 to 6.03) and being born at home (HR 4.82, 95% CI 1.76 to 13.19) were independently associated with all-cause mortality. Low birth weight status was independently associated with a decreased risk of mortality (HR 0.24, 95% CI 0.11 to 0.53). There was a high burden of infection in the cohort with more than half of infants (140, 61.14%) diagnosed with sepsis at least once during their NNU admission. Approximately 20% (n=25) of infants with sepsis died before discharge. Our univariate subanalysis of the sepsis cohort revealed that ELBW and critical illness were associated with an increased risk of death. These findings persisted in the multivariate model with HR 3.60 (95% CI 1.11 to 11.71) and HR 2.39 (95% CI 1 to 5.77), respectively.

CONCLUSIONS

High rates of neonatal mortality were noted. Urgent interventions are needed to improve survival rates at PMH NNU and to prioritise care for critically ill infants at time of NNU admission, particularly those born at home and/or of ELBW.

A national study of antibiotic use in Greek pediatric hematology oncology and bone marrow transplant units

OBJECTIVE

We surveyed antimicrobials used in Greek pediatric hematology-oncology (PHO) and bone marrow transplant (BMT) units before and after an intervention involving education regarding the 2017 clinical practice guidelines (CPG) for the management of febrile neutropenia in children with cancer and hematopoietic stem-cell transplant recipients.

DESIGN

Antibiotic prescribing practices were prospectively recorded between June 2016 and November 2017.

INTERVENTION

In December 2017, baseline data feedback was provided, and CPG education was provided. Prescribing practices were followed for one more year. For antibiotic stewardship, days of therapy, and length of therapy were calculated.

SETTING

Five of the 6 PHO units in Greece and the single pediatric BMT unit participated.

PARTICIPANTS

Admitted children in each unit who received the first 15 new antibiotic courses each month.

RESULTS

Administration of ≥4 antibiotics simultaneously and administration of antibiotics with overlapping activity for ≥2 days were significantly more common in PHO units in general hospitals compared to children's hospitals. Use of at least 1 antifungal was recorded in ∼47% of the patients before and after the intervention. De-escalation and/or discontinuation of antibiotics on day 6 of initial treatment increased significantly from 43% to 53.5% (P = .032). Although the number of patients requiring intensive care support for sepsis did not change, a significant drop was noted in all-cause mortality (P = .008).

CONCLUSIONS

We recorded the antibiotic prescribing practices in Greek PHO and BMT units, we achieved improved prescribing with a simple intervention, and we identified areas in need of improvement.

Potential benefit from the implementation of the Kaiser Permanente neonatal early-onset sepsis calculator on clinical management of neonates with presumed sepsis

To assess the potential benefit from the implementation of the Kaiser Permanente early-onset sepsis calculator (EOS-C), in terms of antibiotic use and requested laboratory tests, in a network of neonatal intensive care units (NICUs) in Greece, and to determine the incidence of early-onset sepsis (EOS) in Greek NICUs, a prospective surveillance study was conducted in 7 NICUs between April 2018 and June 2019. Data were collected for all newborns ≥ 34 weeks' gestation receiving empiric antibiotic therapy within the first 3 days of life. The number of live births and positive blood or cerebrospinal fluid cultures within the first 3 days of life were used for calculation of EOS incidence. Evaluation of possible impact of implementing the calculator was done by comparing the clinicians' recorded management to the calculator's suggested course of action. The unit-specific incidence of culture-proven EOS ranged between 0 and 2.99/1000 live births. The weighted incidence rate for all 7 units was 1.8/1000 live births. Management of EOS guided by the calculator could lead to a reduction of empiric antibiotic initiation up to 100% for the group of "well-appearing" neonates and 86% for "equivocal," lowering exposure to antibiotics by 4.2 and 3.8 days per neonate, respectively. Laboratory tests for blood cultures drawn could be reduced by up to 100% and 68%, respectively. Sensitivity of the EOS-C in identifying neonates with positive blood cultures was high.Conclusion: Management strategies based on the Kaiser Permanente neonatal sepsis calculator may significantly reduce antibiotic exposure, invasive diagnostic procedures, and hospitalizations in late preterm and term neonates. What is Known: • Neonates are frequently exposed to antibiotics for presumed EOS. • The Kaiser Permanente sepsis calculator can reduce antibiotic exposure in neonates.. What is New: • EOS calculator can be an effective antibiotic stewardship tool in a high prescribing country and can reduce invasive diagnostic procedures and mother-baby separation. • Incidence of EOS in Greece is higher compared to other European countries.

The Impact of Interventions to Prevent Neonatal Healthcare-associated Infections in Low- and Middle-income Countries: A Systematic Review

BACKGROUND

Clinically suspected and laboratory-confirmed bloodstream infections are frequent causes of morbidity and mortality during neonatal care. The most effective infection prevention and control interventions for neonates in low- and middle-income countries (LMIC) are unknown.

AIM

To identify effective interventions in the prevention of hospital-acquired bloodstream infections in LMIC neonatal units.

METHODS

Medline, PUBMED, the Cochrane Database of Systematic Reviews, EMBASE and PsychInfo (January 2003 to October 2020) were searched to identify studies reporting single or bundled interventions for prevention of bloodstream infections in LMIC neonatal units.

RESULTS

Our initial search identified 5206 articles; following application of filters, 27 publications met the inclusion and Integrated Quality Criteria for the Review of Multiple Study Designs assessment criteria and were summarized in the final analysis. No studies were carried out in low-income countries, only 1 in Sub-Saharan Africa and just 2 in multiple countries. Of the 18 single-intervention studies, most targeted skin (n = 4) and gastrointestinal mucosal integrity (n = 5). Whereas emollient therapy and lactoferrin achieved significant reductions in proven neonatal infection, glutamine and mixed probiotics showed no benefit. Chlorhexidine gluconate for cord care and kangaroo mother care reduced infection in individual single-center studies. Of the 9 studies evaluating bundles, most focused on prevention of device-associated infections and achieved significant reductions in catheter- and ventilator-associated infections.

CONCLUSIONS

There is a limited evidence base for the effectiveness of infection prevention and control interventions in LMIC neonatal units; bundled interventions targeting device-associated infections were most effective. More multisite studies with robust study designs are needed to inform infection prevention and control intervention strategies in low-resource neonatal units.

Keeping It Real: Infection Prevention and Control Problems and Solutions in Low- and Middle-income Countries

Infection prevention challenges are ubiquitous in healthcare, but some are unique to or more prevalent in low-and middle-income country settings. Despite limited resources, innovative and committed paediatric healthcare providers and infection preventionists have found creative solutions to address the very real and pressing risks their patients face every day. We gathered examples of infection prevention and control challenges faced by clinicians in resource-limited healthcare facilities, and the real-world infection prevention and control solutions they implemented, with the goal of learning broader lessons applicable to low-and middle-income countrie.

Characterizing the bioburden of ESBL-producing organisms in a neonatal unit using chromogenic culture media: a feasible and efficient environmental sampling method

INTRODUCTION

Infections due to extended spectrum beta-lactamase producing organisms (ESBL) have emerged as the leading cause of sepsis among hospitalized neonates in Botswana and much of sub-Saharan Africa and south Asia. Yet, ESBL reservoirs and transmission dynamics within the neonatal intensive care unit (NICU) environment are not well-understood. This study aimed to assess the efficiency and feasibility of a chromogenic-culture-media-based environmental sampling approach to characterize the ESBL bioburden within a NICU.

METHODS

A series of four point-prevalence surveys were conducted at a 36-bed NICU at a public tertiary referral hospital in Botswana from January-June 2021. Samples were collected on 4 occasions under semi-sterile technique using 1) flocked swabs & templates (flat surfaces); 2) sterile syringe & tubing (water aspiration); and 3) structured swabbing techniques (hands & equipment). Swabs were transported in physiological saline-containing tubes, vortexed, and 10 µL was inoculated onto chromogenic-agar that was selective and differential for ESBL (CHROMagar™ ESBL, Paris, France), and streaking plates to isolate individual colonies. Bacterial colonies were quantified and phenotypically characterized using biochemical identification tests.

RESULTS

In total, 567 samples were collected, 248 (44%) of which grew ESBL. Dense and consistent ESBL contamination was detected in and around sinks and certain high-touch surfaces, while transient contamination was demonstrated on medical equipment, caregivers/healthcare worker hands, insects, and feeding stations (including formula powder). Results were available within 24-72 h of collection. To collect, plate, and analyse 50 samples, we estimated a total expenditure of $269.40 USD for materials and 13.5 cumulative work hours among all personnel.

CONCLUSIONS

Using basic environmental sampling and laboratory techniques aided by chromogenic culture media, we identified ESBL reservoirs (sinks) and plausible transmission vehicles (medical equipment, infant formula, hands of caregivers/healthcare workers, & insects) in this NICU environment. This strategy was a simple and cost-efficient method to assess ESBL bioburden and may be feasible for use in other settings to support ongoing infection control assessments and outbreak investigations.

Healthcare-Associated Infection Prevention Interventions for Neonates in Resource-Limited Settings

Healthcare-associated infections (HAIs) and antimicrobial-resistant (AMR) infections are leading causes of neonatal morbidity and mortality, contributing to an extended hospital stay and increased healthcare costs. Although the burden and impact of HAI/AMR in resource-limited neonatal units are substantial, there are few HAI/AMR prevention studies in these settings. We reviewed the mechanism of action and evidence supporting HAI/AMR prevention interventions, including care bundles, for hospitalized neonates in low- and middle-income countries (LMIC).

90. Deimplementation: Use of Electronic Clinical Decision Support to Reduce Unnecessary Erythrocyte Sedimentation Rate (ESR) Ordering

Background

In recent years, several de-implementation initiatives have focused on diagnostic testing. One such initiative, the Choosing Wisely campaign, recommends against routine use of erythrocyte sedimentation rate (ESR) for assessment of acute undiagnosed inflammation or infection. With the development of newer biomarkers of inflammation, particularly C-reactive protein (CRP), there is a decreasing role for ESR in screening for acute-onset conditions; however, ESR continues to be commonly ordered.

Methods

We examined ESR and CRP ordering practices at the Children’s Hospital of Philadelphia (CHOP) from July 2019 to July 2020 and found that 80% of ESR orders were placed concurrently with an order for CRP. We aimed to reduce ESR ordering by 20% at CHOP by using electronic clinical decision support in the form of embedded order guidance for ESR orders placed in the Emergency Department (ED) and inpatient setting. We examined the effect of the clinical decision support by assessing ESR ordering rate, defined by ESR orders per monthly patient days for the inpatient setting and ESR orders per monthly ED visits for the ED setting. We then examined differences in ordering rates using a quasi-experimental model with a concurrent control (basic metabolic panel).

ESR Electronic Clinical Decision Support Intervention

Results

Prior to implementation of the electronic decision support intervention, the median monthly rate of ESR orders was 13.6 per 1000 patient days and 70.3 per 1000 ED visits. During the initial month after implementation, we found that ESR ordering was 12.5 in inpatient and 46.4 in ED, reflecting decreased rates of ordering. The median monthly rate of basic metabolic panel orders (concurrent control) was 194.5 per 1000 patient days and 110.0 per 1000 ED visits. This was unchanged after intervention.

Conclusion

We conclude that electronic clinical decision support is a potentially effective deimplementation method for improving diagnostic test utilization, even with non-disease specific testing such as inflammatory markers. However, continued post-implementation data monitoring and analysis is needed to determine if this is a true difference and sustainable trend.

Disclosures

All Authors: No reported disclosures

The COVID trap: pediatric diagnostic errors in a pandemic world

OBJECTIVES

The COVID-19 pandemic has introduced strains in the diagnostic process through uncertainty in diagnosis, changes to usual clinical processes, and introduction of a unique social context of altered health care delivery and fear of the medical environment. These challenges created a context ripe for diagnostic error involving both systems and cognitive factors.

CASE PRESENTATION

We present a series of three pediatric cases presenting to care during the early phases of the COVID-19 pandemic that highlight the heightened potential for diagnostic errors in the pandemic context with particular focus on the interplay of systems and cognitive factors leading to delayed and missed diagnoses. These cases illustrate the particular power of availability bias, diagnostic momentum, and premature closure in the diagnostic process.

CONCLUSIONS

Through integrated commentary and a fishbone analysis of the cognitive and systems factors at play, these three cases emphasize the specific influence of the COVID-19 pandemic on pediatric patients.

Epidemiology of clinically suspected and laboratory-confirmed bloodstream infections at a South African neonatal unit

INTRODUCTION

Data from Africa reporting the epidemiology of infection in hospitalised neonates are limited.

METHODOLOGY

A prospective study with convenience sampling was conducted to characterise neonates investigated with blood culture/s for suspected infection at a 132-bed neonatal unit in Cape Town, South Africa (1 February-31 October 2018). Enrolled neonates were classified as having proven bloodstream infection (BSI) (blood culture-positive with a pathogen) or presumed infection (clinically suspected but blood culture-negative) or as potentially at risk of infection (maternal risk factors at birth).

RESULTS

Of 1299 hospitalised neonates with >1 blood culture sampling episode, 712 (55%) were enrolled: 126 (17.7%) had proven BSI; 299 (42%) had presumed infection and 287 (40.3%) were potentially at risk of infection. Neonates with proven BSI had lower birth weight and higher rates of co-existing surgical conditions versus the presumed/potential infection groups (p < 0.001). Median onset of proven BSI versus presumed infection was at 8 (IQR = 5-13) and 1 (IQR = 0-5) days respectively (p < 0.001). Most proven BSI were healthcare-associated (114/126; 90.5%), with Klebsiella pneumoniae (80.6% extended-spectrum β-lactamase producers) and Staphylococcus aureus (66.7% methicillin-resistant) predominating. Mortality from proven BSI (34/126; 27%) was substantially higher than that observed in presumed (8/299; 2.7%) and potential infections (3/287; 1.0%) (p < 0.001). The odds of death from proven BSI was 3-fold higher for Gram-negatives than for Gram-positive/fungal pathogens (OR = 3.23; 95% CI = 1.17-8.92).

CONCLUSIONS

Proven BSI episodes were predominantly healthcare-associated and associated with a high case fatality rate. Most neonates with presumed infection or at potential risk of infection had favourable 30-day outcomes.

SARS-CoV-2 Infection in Public School District Employees Following a District-Wide Vaccination Program - Philadelphia County, Pennsylvania, March 21-April 23, 2021

The School District of Philadelphia reopened for in-school instruction the week of March 21, 2021, and required weekly testing for SARS-CoV-2, the virus that causes COVID-19, for all employees returning to in-school responsibilities. The resumption of in-school instruction followed a mass vaccination program using the Pfizer-BioNTech 2-dose vaccine offered under a partnership between the Philadelphia Department of Public Health and Children's Hospital of Philadelphia to all 22,808 School District of Philadelphia employees during February 23-April 3, 2021.* The subsequent mandatory testing program provided an opportunity to assess the percentage of positive BinaxNow point-of-care antigen tests (Abbott Laboratories) identified among school staff members based on their self-reported vaccination status (i.e., received zero, 1, or 2 vaccine doses) at the time of testing. During the initial 5 weeks after schools reopened, 34,048 screening tests were performed. Overall, 0.70% of tests returned a positive result. The percentage of positive test results was lower among persons who reported receipt of 2 vaccine doses (0.09%) compared with those who reported receipt of 1 dose (1.21%) or zero doses (1.76%) (p<0.001) representing a 95% reduction in percentage of positive SARS-CoV-2 test results among persons reporting receipt of 2 compared with zero doses of Pfizer-BioNTech vaccine. Vaccination of school staff members has been highlighted as an important strategy to maximize the safety of in-person education of K-12 students this fall (1). These findings reinforce the importance of promoting COVID-19 vaccination among school staff members before commencement of the 2021-22 school year.

Identifying the priority infection prevention and control gaps contributing to neonatal healthcare-associated infections in low- and middle-income countries: results from a modified Delphi process

Background

In low- and middle-income countries (LMIC), neonatal healthcare-associated infections (HAI) are associated with increased morbidity, mortality, hospital stay, and costs. When resources are limited, addressing HAI through infection prevention and control (IPC) requires prioritizing interventions to maximize impact. However, little is known about the gaps in LMIC that contribute most to HAI.

Methods

A literature review was conducted to identify the leading IPC gaps contributing to neonatal HAIs in intensive care units and specialty care wards in LMIC. Additionally, a panel of 21 global experts in neonatology and IPC participated in an in-person modified Delphi process to achieve consensus on the relative importance of these gaps as contributors to HAI.

Results

Thirteen IPC gaps were identified and summarized into four main categories: facility policies such as prioritizing a patient safety culture and maintaining facility capacity, general healthcare worker behaviors such as hand hygiene and proper device insertion and maintenance, specialty healthcare worker behaviors such as cleaning and reprocessing of medical equipment, and infrastructural considerations such as adequate medical equipment and hand hygiene supplies.

Conclusions

Through a modified Delphi process, we identified the leading IPC gaps contributing to neonatal HAIs; this information can assist policymakers, public health officials, researchers, and clinicians to prioritize areas for further study or intervention.

Implementation of a Pragmatic Biomarker-Driven Algorithm to Guide Antibiotic Use in the Pediatric Intensive Care Unit: the Optimizing Antibiotic Strategies in Sepsis (OASIS) II Study

Background

Antibiotic overuse in the pediatric intensive care unit (PICU) is common and reliable approaches are needed to promote safe antibiotic discontinuation. In prior work we developed a biomarker-based algorithm that identified children with suspected sepsis at low risk of bacterial infection. We evaluated the effectiveness of this algorithm to reduce broad-spectrum antibiotic use in the PICU.

Methods

We conducted a quasi-experimental study focused on patients in whom antibiotics were initiated for presumed bacterial sepsis. Antibiotics were given per usual practice during the nonintervention period (T1: Aug 2012 – May 2015). From June 2015 – May 2016 (T2) PICU clinicians were encouraged but not required to stop antibiotics in “low-risk” patients: CRP <4 mg/dL and procalcitonin <1 ng/mL at SIRS onset (day 0) and no pathogen or signs of bacterial infection identified by day 2. The primary outcome was antibiotic length of therapy (LOT) from day 3 through 9, hospital discharge, or death. CDC NHSN definitions were used to define bacterial infections days 0–2. We reviewed all children ≤18 years with SIRS; those with immune compromise, DNR, or recent SIRS (within 30 days) were excluded. Time series analyses adjusting for significant covariates and confounders compared LOT from T1 to T2 in patients with no identified bacterial infection. We also calculated the incidence rate ratio (IRR) of LOT in the subset of patients who met our low-risk criteria.

Results

525 eligible episodes of suspected sepsis occurred during T1 and 212 during T2. Bacterial infections were detected in 34% of T1 episodes and 39% in T2 (P = 0.16). Patients in T2 had fewer cardiovascular conditions but were otherwise similar to T1 patients. Broad-spectrum LOT remained unchanged in all patients without bacterial infections following implementation of our algorithm (OR 0.72, 95% CI 0.46 – 1.13; Figure 1). Among the subset who met low-risk criteria, LOT decreased from T1 to T2 (197 v. 104 antibiotic days per 1000 patient-days, IRR 0.53, 95% CI 0.30–0.93).

Conclusion

Implementation of a biomarker-based algorithm did not affect broad-spectrum antibiotic prescribing overall in patients without bacterial infections in our PICU, although LOT declined in those defined by our algorithm to be low-risk.

Disclosures

K. Downes, Merck, Inc.: Grant Investigator, Research grant; Pfizer, Inc.: Grant Investigator, Research grant

Treatment-Related Complications in Children Hospitalized With Disseminated Lyme Disease

We describe here treatment approaches and treatment-related complications in 138 hospitalized children with disseminated Lyme disease. The patients who received parenteral antibiotics had a higher rate of complications than those who received oral therapy (15.4 vs 4.2 per 1000 days of therapy, respectively; P < .05). Oral therapy should be used preferentially if either route is supported by current guidelines.

Perioperative antimicrobial prophylaxis in pediatric patients in Greece: Compliance with guidelines and impact of an educational intervention

BACKGROUND/PURPOSE

Appropriate antimicrobial prophylaxis (PAP) prevents surgical site infections (SSI). The aim of this study was to evaluate the effectiveness of an educational intervention to improve adherence to PAP guidelines in pediatric patients.

METHODS

A three-phase prospective study with a pre-post design was conducted from April 2013 to December 2014. All patients who underwent one or more surgical procedures were enrolled. A modified Centers for Disease Control's (CDC) Denominator for Procedure form was used to collect clinical and PAP data. The educational intervention was targeted at all pediatric surgeons in the department. Outcomes assessed were the appropriateness of the agent selected for PAP (according to international guidelines) and appropriate termination of PAP within 24h of surgery completion. SSI rates were calculated before and after the intervention.

RESULTS

During the study period 889 children were enrolled (219 in the preintervention and 670 in the postintervention period). The percentage of patients receiving appropriate PAP improved from 6.2% to 77.1% after the educational intervention (p<0.001). The median duration of PAP was reduced from 5 to 1days in preintervention and postintervention period, respectively. There was no increase in the rate of SSIs (0.93% and 0.92%, p=0.992, in preinterventionand postintervention, respectively).

CONCLUSIONS

An educational intervention targeted at pediatric surgeons improved the selection of agent and timely discontinuation of PAP.

Ventilator-Associated Events in Neonates and Children--A New Paradigm

OBJECTIVES

To identify a pediatric ventilator-associated condition definition for use in neonates and children by exploring whether potential ventilator-associated condition definitions identify patients with worse outcomes.

DESIGN

Retrospective cohort study and a matched cohort analysis.

SETTING

Pediatric, cardiac, and neonatal ICUs in five U.S. hospitals.

PATIENTS

Children 18 years old or younger ventilated for at least 1 day.

INTERVENTIONS

None.

MEASUREMENTS AND MAIN RESULTS

We evaluated the evidence of worsening oxygenation via a range of thresholds for increases in daily minimum fraction of inspired oxygen (by 0.20, 0.25, and 0.30) and daily minimum mean airway pressure (by 4, 5, 6, and 7 cm H2O). We required worsening oxygenation be sustained for at least 2 days after at least 2 days of stability. We matched patients with a ventilator-associated condition to those without and used Cox proportional hazard models with frailties to examine associations with hospital mortality, hospital and ICU length of stay, and duration of ventilation. The cohort included 8,862 children with 10,209 hospitalizations and 77,751 ventilator days. For the fraction of inspired oxygen 0.25/mean airway pressure 4 definition (i.e., increase in minimum daily fraction of inspired oxygen by 0.25 or mean airway pressure by 4), rates ranged from 2.9 to 3.2 per 1,000 ventilator days depending on ICU type; the fraction of inspired oxygen 0.30/mean airway pressure 7 definition yielded ventilator-associated condition rates of 1.1-1.3 per 1,000 ventilator days. All definitions were significantly associated with greater risk of hospital death, with hazard ratios ranging from 1.6 (95% CI, 0.7-3.4) to 6.8 (2.9-16.0), depending on thresholds and ICU type. Each definition was associated with prolonged hospitalization, time in ICU, and duration of ventilation, among survivors. The advisory board of the study proposed using the fraction of inspired oxygen 0.25/mean airway pressure 4 thresholds to identify pediatric ventilator-associated conditions in ICUs.

CONCLUSIONS

Pediatric patients with ventilator-associated conditions are at substantially higher risk for mortality and morbidity across ICUs, regardless of thresholds used. Next steps include identification of risk factors, etiologies, and preventative measures for pediatric ventilator-associated conditions.

Blood Culture Contamination Rates after Skin Antisepsis with Chlorhexidine Gluconate versus Povidone-Iodine in a Pediatric Emergency Department

Objective.

To determine blood culture contamination rates after skin antisepsis with Chlorhexidine, compared with povidone-iodine.

Design.

Retrospective, quasi-experimental study.

Setting.

Emergency department of a tertiary care children's hospital.

Patients.

Children aged 2-36 months with peripheral blood culture results from February 2004 to June 2008. Control patients were children younger than 2 months with peripheral blood culture results.

Methods.

Blood culture contamination rates were compared using segmented regression analysis of time-series data among 3 patient groups: (1) patients aged 2-36 months during the 26-month preintervention period, in which 10% povidone-iodine was used for skin antisepsis before blood culture; (2) patients aged 2-36 months during the 26-month postintervention period, in which 3% Chlorhexidine gluconate was used; and (3) patients younger than 2 months not exposed to the Chlorhexidine intervention (ie, the control group).

Results.

Results from 11,595 eligible blood cultures were reviewed (4,942 from the preintervention group, 4,274 from the postintervention group, and 2,379 from the control group). For children aged 2-36 months, the blood culture contamination rate decreased from 24.81 to 17.19 contaminated cultures per 1,000 cultures (P< .05) after implementation of Chlorhexidine. This decrease of 7.62 contaminated cultures per 1,000 cultures (95% confidence interval, —0.781 to —15.16) represented a 30% relative decrease from the preintervention period and was sustained over the entire postintervention period. No change in contamination rate was observed in the control group (P= .337).

Conclusion.

Skin antisepsis with Chlorhexidine significantly reduces the blood culture contamination rate among young children, as compared with povidone-iodine.

Antibiotic use in Vietnamese hospitals: a multicenter point-prevalence study

BACKGROUND

Inappropriate antibiotic prescribing appears to be common worldwide and is contributing to the selection of resistant organisms. This study examined the prevalence of antibiotic prescription and the appropriateness of indications for these prescriptions in 36 representative general hospitals across Vietnam.

METHODS

A point-prevalence study was performed between February and December 2008. All inpatients on the day of the survey were included in the analysis. Standard published guidelines were used to evaluate the appropriateness of indications for antibiotic prescription.

RESULTS

On the day of the study, 5,104 of 7,571 patients (67.4%) were receiving antibiotic therapy. The antibiotic prescription rate was highest in surgery wards (93.2%) and lowest in medical wards (48.2%). Of the 5,104 patients receiving antibiotics, the most commonly prescribed agents were cephalosporins (70.2%), penicillins (21.6%), and aminoglycosides (18.9%). Approximately one-third of the patients (1,573 of 5,104) had an inappropriate indication for prescription. Risk factors independently associated with inappropriate indication for antibiotic prescription were seen in hospitals at the national level, obstetrics and gynecology departments, and surgical wards.

CONCLUSIONS

Our data indicate a high rate of antibiotic use in Vietnamese hospitals, and also a high prevalence of inappropriate indications for antibiotic prescriptions. These findings suggest important areas for intervention and implementation of antibiotic stewardship policies in Vietnamese hospitals.