Antibiotic Orders Research Articles

Implementation of Global Strategies to Prevent Hospital-Onset Clostridium difficile Infection: Targeting Proton Pump Inhibitors and Probiotics.

Proton pump inhibitors (PPIs) have been identified as a significant risk factor for the development of Clostridium difficile infection (CDI). Probiotics given concurrently with antibiotics have been shown to have a moderate impact on preventing CDI. To evaluate the effectiveness of hospital-wide interventions designed to reduce PPI use and increase probiotics and whether these interventions were associated with a change in the incidence of hospital onset (HO)-CDI. This retrospective cohort study compared 2 fiscal years: July 2013 to June 2014 (FY14) and July 2014 to June 2015 (FY15). In July of FY15, global educational initiatives were launched targeting PPIs. Additionally, a HO-CDI prevention bundle was added to antibiotic-containing order sets targeting probiotics. Overall PPI use, probiotic use, and incidence of HO-CDI were recorded and compared for each cohort. Charts were also reviewed for patients who developed HO-CDI for the presence and appropriateness of a PPI and presence of probiotics. The interventions resulted in a decrease in PPI use by 14% or 96 doses/1000 patient days (TPD; P = 0.0002) and a reduction in IV PPI use by 31% or 71 doses/TPD ( P = 0.0008). Probiotic use increased by 130% or 126 doses/TPD ( P = 0.0006). The incidence of HO-CDI decreased by 20% or 0.1 cases/TPD ( P = 0.04). A collaborative, multifaceted educational initiative directed at highlighting the risks associated with PPI use was effective in reducing PPI prescribing. The implementation of a probiotic bundle added to antibiotic order sets was effective in increasing probiotic use. These interventions were associated with a decrease in incidence of HO-CDI.

Enhanced antimicrobial de-escalation for pneumonia in mechanically ventilated patients: a cross-over study

BackgroundAntibiotics are commonly administered to hospitalized patients with infiltrates for possible bacterial pneumonia, often leading to unnecessary treatment and increasing the risk for resistance emergence. Therefore, we performed a study to determine if an enhanced antibiotic de-escalation practice could improve antibiotic utilization in mechanically ventilated patients with suspected pneumonia cared for in an academic closed intensive care unit (ICU).MethodsThis was a prospective cross-over trial comparing routine antibiotic management (RAM) and enhanced antimicrobial de-escalation (EAD) performed within two medical ICUs (total 34 beds) at Barnes-Jewish Hospital, an academic referral center. Patients in the EAD group had their antibiotic orders and microbiology results reviewed daily by a dedicated team comprised of a second-year critical care fellow, an ICU attending physician and an ICU pharmacist. Antibiotic de-escalation recommendations were made when appropriate based on microbiologic test results and clinical response to therapy.ResultsThere were 283 patients evaluable, with suspected pneumonia requiring mechanical ventilation: 139 (49.1%) patients in the RAM group and 144 (50.9%) in the EAD group. Early treatment failure based on clinical deterioration occurred in 33 (23.7%) and 40 (27.8%) patients, respectively (P = 0.438). In the remaining patients, antimicrobial de-escalation occurred in 70 (66.0%) and 70 (67.3%), respectively (P = 0.845). There was no difference between groups in total antibiotic days ((median (interquartile range)) 7.0 days (4.0, 9.0) versus 7.0 days (4.0, 8.8) (P = 0.616)); hospital mortality (25.2% versus 35.4% (P = 0.061)); or hospital duration (12.0 days (6.0, 20.0) versus 11.0 days (6.0, 22.0) (P = 0.918).ConclusionsThe addition of an EAD program to a high-intensity daytime staffing model already practicing a high-level of antibiotic stewardship in an academic ICU was not associated with greater antibiotic de-escalation or a reduction in the overall duration of antibiotic therapy.Trial registrationClinicalTrials.gov, NCT02685930. Registered on 26 January 2016.

Optimizing preoperative prophylaxis in patients with reported β-lactam allergy: a novel extension of antimicrobial stewardship.

Use of alternative second-line antibiotics is associated with adverse events in patients reporting β-lactam allergy. In the perioperative setting, we hypothesized that structured allergy histories, without the use of skin testing, can reduce alternative prophylactic antibiotic use. Assess the impact of structured allergy histories on patients with self-reported β-lactam allergy (SRBA) undergoing elective surgical procedures. Structured allergy histories were performed by a pharmacist and reviewed with an infectious diseases physician. Patients were deemed safe to proceed with cefazolin prophylaxis if they did not describe a history of type I-mediated or severe reaction. Antibiotic prophylaxis orders (with approval by the surgical team) were scheduled into the computerized order entry system to be given prior to first incision of the operation. Of the 485 patients with SRBA that underwent structured allergy histories, 117 (24.1%) reported a type I-mediated allergy history; 267 (55.1%) patients received cefazolin prophylaxis and none subsequently experienced an adverse reaction. After intervention implementation, the overall use of alternative antibiotic prophylaxis at Michael Garron Hospital (Toronto, Canada) among those with SRBA decreased from 81.9% to 55.9%. This drop was associated with the number of monthly assessments (P < 0.001) in a regression analysis. Using a simple structured history and the principles of prospective audit and feedback, we were able to increase the use of cefazolin perioperative prophylaxis without any serious adverse events and in the absence of skin testing or diagnostic challenges.

Implementing a Pilot Trial of an Infection Control Program in Nursing Homes: Results of a Matched Cluster Randomized Trial

BackgroundHand hygiene is the single-most important nursing home (NH) infection control measure. We piloted a multifaceted hand-washing/surface cleaning intervention in 5 NHs. Our aims were to assess the feasibility of implementing this intervention by assessing staff participation, satisfaction, hand-washing compliance, and whether the intervention was associated with reductions in infection rates, new antimicrobial orders, or overall hospitalization rates. MethodsWe conducted a randomized, pair-matched pilot intervention in 10 Colorado NHs to reduce infections for all NH residents from October 1, 2015 through May 31, 2016. To evaluate process, we determined online education participation rates, recorded intervention fidelity through weekly reporting measures on microbial surface counts, hand-washing, and infection reporting, and conducted a survey of participating employees. To evaluate potential impacts on clinical outcomes, we collected information on monthly infection log data, new antibiotic orders, and hospitalizations. ResultsThree of 5 sites had education participation rates >90%, the other 2 were poor (13% and 23%). The majority of participation survey respondents (58%) were promoters of the intervention. Directors of nursing reported hygiene hand-washing data for 19.6/24 (81.8%) weeks and microbial surface count data for 20.4/24 (85.1%) weeks. For the first 4 weeks of the study, the bacterial counts averaged 351.4 ± 497.5 relative light units, the mean value for the last 4 weeks was 127.7 ± 85.1 (P value = .12). The number of hand-washing occasions per NH resident was steady over time but differed by treatment facility (P = .03). We observed nonsignificant reductions for total infections (6.7%) and lower respiratory tract infections (19.9%) vs control NHs. There were no significant differences in antimicrobial orders or hospitalization rates pre-post intervention. ConclusionsThis multifaceted hand-washing and surface cleaning intervention was designed to reduce infection rates among NH residents. In our 10-facility randomized, matched pair pilot study, we observed program compliance and satisfaction along with reductions in surface bacterial counts, but did not observe a statistically significant reduction in infection rates, antimicrobial use, or hospitalizations.

Genesis of Antibiotic Resistance XXVIII: Mitigation of Antibiotic Resistance Pandemic (ARP) through obdurate implementation of Antibiotics Time Out (ATO)

A comprehensive review of the cause and effect relationship for ATO and its role in ARP has been completed by clinical and microbiology staff at Fort Duncan Regional Medical Center and Southwest Texas Junior College and the outcomes of the colloquium and its implementation strategies are presented in this work. Subsequently, strategic measures are paramount to ATO. Healthcare providers should have a dosage and duration identifiers in all orders and antibiotic orders should include microbiology cultures to check, verify and substantiate resistance to the antibiotic, thus having the propensity to elicit therapeutic change by narrowing the broad spectrum resulting in improved treatment of pathogens. Although a patient appears well, it remains important to check microbiology cultures if it is at all possible for them to be grown and culture results should return within 24 to 48 hours for an antibiotic time out. ATO gives the physician an opportunity to observe and determine the efficacy of the prescribed antibiotic with reevaluation to be conducted after 24 hours. The goal is to get the patient out quickly due to subsequent infection and economic constraints. In addition to reducing antibiotics overuse, implementation of effective infection prevention measures is necessary. The following are obligatory appraisals during ATO: a. Collection of cultures of antibiotics before starting antibiotics, antibiotics require renal dosing, b. ID approval is required for many antibiotics, c. Use the Sanford Guide to Antimicrobial Therapy and hospital literature, d. Medical history of the patient when choosing anti‐biotics (maximum available retrospective data). e. Has patient received recent antibiotic therapy and the details? f. data on hospital flora (day to day basis), g. The presence of underlying disease, h. Antibiogram – complete antibiotic sensitivity profile ‐ culture data of the patient, i. The number of days the patient has been treated with broad spectrum antibiotics (detailed descriptive summary), j. The patterns of resistance in the community, city, state, country, &amp; global (weekly basis) k. Is the patient being treated with immunosuppressive drugs or with disease such as an autoimmune disorder?, l. Joint efforts of the patient advocate and community organizations in monitoring the patient in completion of the entire treatment program such as taking full dosage within the stipulated time periods, m. Major episodes of resistance problems such as hospital infections in that healthcare facility (chances of cross contamination profile), n. Reevaluation of patient antibiotic sensitivity before and after completing treatment. Data analysis and adequate literature sources will be presented at EB 2017.Support or Funding InformationProfessional development funds to Subburaj Kannan

Impact of an antimicrobial stewardship initiative on time to administration of empirical antibiotic therapy in hospitalized patients with bacteremia.

The impact of an antimicrobial stewardship initiative on time to first antibiotic dose and clinical outcomes in bacteremic patients was evaluated. A single-center, retrospective study was conducted for adult inpatients who received antibiotics before and after implementation of a rapid administration of antimicrobials by an infectious diseases specialist (RAIDS) protocol. Patients admitted to an inpatient service from June to October 2011 (pre-RAIDS protocol) and from December 2011 to February 2012 (post-RAIDS protocol) were eligible for inclusion if (1) they were age 18 years or older, (2) their infection occurred two or more days after hospital admission, and (3) they had a blood culture growing an organism other than common skin contaminants (i.e., coagulase-negative staphylococci, Bacillus species). The primary outcome was the time to the first antibiotic dose (TFAD), defined as the time that elapsed from a positive blood culture result to administration of the first empirical antimicrobial dose. A total of 111 bacteremic patients were included in the analysis. Implementation of the RAIDS protocol led to significantly faster antibiotic order entry, verification, and administration of empirical antibiotics in patients with bacteremia. The median TFAD was approximately 8 hours faster in the post-RAIDS group than in the pre-RAIDS group (9:09 hr:min versus 1:23 hr:min, p < 0.001). Patients in the post-RAIDS group had a significant reduction in infection-related mortality (p = 0.047), though all-cause 30-day mortality was similar. Early notification of an infectious diseases pharmacist about positive blood cultures using the RAIDS protocol led to increased appropriateness of empirical drug selection and a dramatic reduction in the administration of antibiotics and was associated with decreased infection-related mortality.

Timely antibiotic administration in febrile neutropenia.

204 Background: The University of Illinois currently lacks a standard process to ensure timely antibiotic administration for patients with febrile neutropenia. The Infectious disease society of America (IDSA) guidelines recommend administration of antibiotics within two hours. Given the variability in patient encounters, we sought to implement an early identification and interventional strategy in the ambulatory setting for febrile neutropenic patients. A retrospective chart review over 10 weeks demonstrated that of 40 patients diagnosed with neutropenia 15 % (N = 6) had febrile neutropenia. Of these 6 patients, 50% (N = 3) received antibiotics within the IDSA time frame. We aimed to increase the percentage of febrile neutropenic patients receiving antibiotics within 2 hours from 50% to 100% in 8 weeks. Methods: A focus group at our quarterly morbidity mortality and improvement conference brainstormed a list of causes of delay in antibiotic initiation based on an index case discussion. A task force generated a pareto chart after affinity sorting the prior list, and created actual and ideal process maps, from identification of neutropenic patients to patient disposition. A standard operative protocol (SOP) was developed involving the creation and implementation of an electronic provider generated neutropenia check list triggering specific actions per IDSA recommendations, and a standardized order set including STAT cultures, and STAT antibiotics. Results: The febrile neutropenia SOP will be piloted over an 8 week period starting in early November in four ambulatory settings. The primary outcome data is the time from event to antibiotic administration. Process data will include time from event to antibiotic order, time from antibiotic order to administration and compliance with high risk neutropenic check list. We plan to assess our interventions every 3-4 weeks, and pilot at least 2 PDSA cycles within the next 8 weeks. Conclusions: Although febrile neutropenia is a recognized medical emergency with clear guidelines on treatment, not all patients may receive antibiotics within the appropriate time frame. It is therefore imperative for institutions to be aware of their level of IDSA compliance and implement appropriate quality improvements as required.

Associations of prenatal and childhood antibiotic use with child body mass index at age 3 years.

Early-life antibiotic exposure, whether through prenatal or childhood antibiotic use, may contribute to increased child body mass. Associations of prenatal and childhood antibiotic use with body mass index z-score (BMIz) were evaluated at age 3 years. Electronic health records were utilized from 8,793 mothers and singleton children delivered at Geisinger Clinic in Pennsylvania between 2006 and 2012. Antibiotic orders were ascertained for mothers during pregnancy and for children through their age-3 BMI measurement. Linear mixed-effects regression models evaluated associations of prenatal and childhood antibiotic use with child BMIz. Prenatal antibiotic orders were not associated with child BMIz. Children in the three largest categories of lifetime antibiotic orders had higher BMIz compared with children with no orders; associations persisted when controlling for prenatal antibiotics (β [95% confidence interval]) (4-5 child orders: 0.090 [0.011 to 0.170]; 6 to 8: 0.113 [0.029 to 0.197]; ≥9: 0.175 [0.088 to 0.263]; trend P value <0.001). Two or more first-year orders were also associated with BMIz (1: 0.021 [-0.038 to 0.081]; 2: 0.088 [0.017 to 0.160]; ≥3: 0.104 [0.038 to 0.170]; trend P value < 0.001). Associations of early-life and lifetime childhood antibiotic use with increased child BMI highlight antibiotic exposure as a modifiable factor for reducing population-level excess weight.

End-of-Life Conversations and Hospice Placement: Association with Less Aggressive Care Desired in the Nursing Home

ABSTRACTEducation about end-of-life care and treatment options, communication between family and health care providers, and having advance directives and medical orders in place are important for older adults with chronic, progressive decline and end-stage disease who spend their last days in the nursing home. This study used retrospective data (6 months before death) of long-stay nursing home decedents (N = 300) taken from electronic health records to capture the end-of-life experience. Findings showed for almost all decedents, Do Not Resuscitate and Do Not Intubate orders were in place, and just over one-half had Do Not Hospitalize and No Artificial Feeding orders in place. A small proportion had No Artificial Hydration or No Antibiotic orders in place. Overall, there was congruence between documented medical orders and treatment received. Findings showed that use of hospice and discussions about particular life-sustaining treatments each had significant associations with having less aggressive medical orders in place. These results can inform best practice development to promote high quality, person-directed, end-of-life care for nursing home residents.

YouTube Video Educational Package Increased Acceptance of Antibiotic Clinical Decision Support System Recommendations

BackgroundAntibiotic clinical decision support systems (CDSS) were implemented to provide stewardship at the point of ordering of broad-spectrum antibiotics (piperacillin-tazobactam and carbapenems). We postulated that a YouTube based educational video package (EP) with quizzes can help to improve CDSS acceptance.MethodsA before-after study was conducted in general wards at Tan Tock Seng Hospital from April 2016 to March 2017. Baseline data were collected for 6 months before EP was implemented and during the next 6 months with EP dissemination to all doctors. Acceptance of CDSS recommendations between both phases were compared. Independent factors associated with acceptance of specific CDSS recommendations were identified by logistic regression.ResultsPatients recruited before and after EP was 1642 and 1313 respectively. Overall CDSS acceptance rate was similar before and after EP. There was improved acceptance for recommendations for dose optimizaton, antibiotic optimization and set duration (Figures 1 and 2). Independent factors of CDSS acceptance for dose optimizaton, antibiotic optimization and set duration are shown in Table 1. EP implementation was independently associated with acceptance of recommendations to set duration and optimize antibiotics.ConclusionEP was independently associated with increased CDSS acceptance on antibiotic duration and antibiotic optimization. Although acceptance of dose optimization was improved, EP was not associated independently with acceptance of the recommendations.Figure 2Acceptance of CDSS recommendations by classifications of recommendationsTable 13 multivariate models of acceptance of CDSS recommendations on antibiotic optimization, dose optimization and duration settingSet durationAntibiotic optimizationDose optimizationFactorOdds ratio [95% CI]Lung infection2.71[2.13–3.45]2.08[1.71–2.52]2.79[2.19-3.55]Unknown sepsis source1.73[1.27–2.35] –1.44[1.05-1.96]Piperacillin-tazobactam use3.02[2.17–4.19] – –Temperature during initiation of antibiotics0.86[0.79–0.94] – –The presence of oxygen supplementation during initiation of antibiotics –0.76[0.64–0.91]0.76[0.64–0.91]EP implementation1.38[1.18–1.62]1.21[1.02–1.43] -Disclosures All authors: No reported disclosures.

Assessment of antibiotic resistance in Klebsiella pneumoniae exposed to sequential in vitro antibiotic treatments.

BackgroundBacteria treated with different classes of antibiotics exhibit changes in susceptibility to successive antibiotic treatments. This study was designed to evaluate the influence of sequential antibiotic treatments on the development of antibiotic resistance in Klebsiella pneumoniae associated with β-lactamase and efflux pump activities.MethodsThe antibiotic susceptibility, β-lactamase activity, and efflux activity were determined in K. pneumoniae grown at 37 °C by adding initial (0 h) and second antibiotics (8 or 12 h). Treatments include control (CON; no first and second antibiotic addition), no initial antibiotic addition followed by 1 MIC ciprofloxacin addition (CON-CIP), no initial antibiotic addition followed by 1 MIC meropenem addition (CON-MER), initial 1/4 MIC ciprofloxacin addition followed by no antibiotic addition (1/4CIP-CON), initial 1/4 MIC ciprofloxacin addition followed by 1 MIC ciprofloxacin addition (1/4CIP-CIP), and initial 1/4 MIC ciprofloxacin addition followed by 1 MIC meropenem addition (1/4CIP-MER).ResultsCompared to the CON, the initial addition of 1/4 MIC ciprofloxacin inhibited the growth of K. pneumoniae throughout the incubation period. The ciprofloxacin treatments (CON-CIP and 1/4CIP-CIP) showed significant reduction in the number of K. pneumoniae cells compared to meropenem (CON-MER and 1/4CIP-MER). The 1/4CIP-CIP achieved a further 1 log reduction of K. pneumoniae, when compared to the 1/4CIP-CON and 1/CIP-MER. The increase in sensitivity of K. pneumoniae to cefotaxime, kanamycin, levofloxacin, nalidixic acid was observed for CON-CIP. Noticeable cross-resistance pattern was observed at the 1/4CIP-CIP, showing the increased resistance of K. pneumoniae to chloramphenicol, ciprofloxacin, kanamycin, levofloxacin, nalidixic acid norfloxacin, sulphamethoxazole/trimethoprim, and tetracycline. The levels of β-lactamase activities were estimated to be 8.4 μmol/min/ml for CON, 7.7 μmol/min/ml for 1/4CIP-CON and as low as 2.9 μmol/min/ml for CON-CIP. Compared to the absence of phenylalanine-arginine-β-naphthylamide (PAβN), the fluorescence intensity of EtBr was increased in K. pneumoniae cells treated at the CON, CON-CIP, and CON-MER in the presence of PAβN. However, the efflux pump activity remained in K. pneumoniae cells treated at the 1/CIP, 1/CIP–CIP, and 1/CIP-MER in the presence of PAβN.ConclusionThe results suggest that the pre-exposed antibiotic history, treatment order, and concentrations influenced the development of multiple antibiotic resistant associated with β-lactamase and efflux pump activities. This study highlights the importance of antibiotic treatment conditions, which would be taken into consideration when new antibiotic strategy is designed to prevent antibiotic resistance.

Early-life antibiotic use and subsequent diagnosis of food allergy and allergic diseases.

Antibiotic use in early life has been linked to disruptions in the microbiome. Such changes can disturb immune system development. Differences have been observed in the microbiota of children with and without allergies, but there have been few studies on antibiotic use and allergic disease. We evaluated associations of early-life antibiotic use with subsequent occurrence of food allergy and other allergies in childhood using electronic health record data. We used longitudinal data on 30 060 children up to age 7 years from Geisinger Clinic's electronic health record to conduct a sex- and age-matched case-control study to evaluate the association between antibiotic use and milk allergy, non-milk food allergies, and other allergies. For each outcome, we estimated conditional logistic regression models adjusting for race/ethnicity, history of Medical Assistance, and mode of birth delivery. Models were repeated separately for penicillins, cephalosporins and macrolides. There were 484 milk allergy cases, 598 non-milk food allergy cases and 3652 other allergy cases. Children with three or more antibiotic orders had a greater odds of milk allergy (Odds Ratio; 95% Confidence interval) (1.78; 1.28-2.48), non-milk food allergy (1.65; 1.27-2.14), and other allergies (3.07; 2.72-3.46) compared with children with no antibiotic orders. Associations were strongest at younger ages and differed by antibiotic class. We observed associations between antibiotic orders and allergic diseases, providing evidence of a potentially modifiable clinical practice associated with paediatric allergic disease. Differences by antibiotic class should be further explored, as this knowledge could inform paediatric treatment decisions.

Preoperative Antibiotic Orders: Protocol-Initiated Pharmacist Order Entry.

OBJECTIVE: To evaluate the antibiotic selection of preoperative orders before and after a pharmacist order entry protocol for patients with methicillin-resistant Staphylococcus aureus (MRSA) colonization. METHODS: A retrospective chart review of orthopedic surgery procedures on patients with MRSA colonization at a free-standing, academic pediatric hospital, between February 2010 and February 2012. RESULTS: Procedures that were performed pre protocol (n = 27) implementation had a 63% rate of appropriate antibiotic selection compared to 81% in the postprotocol group (n = 32; p = 0.1155). The preprotocol group dose accuracy was 96% compared to 97% in the postprotocol group (p = 0.81). Two procedures, 1 in each group, were redosed appropriately for extended surgery duration. Correct timing of antibiotic administration occurred in 82% of cases pre protocol versus 68% post protocol (p = 0.42). CONCLUSIONS: Patients with MRSA colonization had a greater rate of appropriate drug selection after the implementation of a pharmacist-initiated preoperative protocol. Correct antibiotic dose and redose remained consistent between the study groups. Most of the orthopedic procedures performed included patients on antibiotic coverage at steady state for ongoing infections, which impacted the analysis of preoperative timing. Further studies should be conducted to assess whether the increase in the number of appropriate antibiotic selections decreases the rate of postoperative MRSA infections.

Automated identification of antibiotic overdoses and adverse drug events via analysis of prescribing alerts and medication administration records.

Electronic trigger detection tools hold promise to reduce Adverse drug event (ADEs) through efficiencies of scale and real-time reporting. We hypothesized that such a tool could automatically detect medication dosing errors as well as manage and evaluate dosing rule modifications. We created an order and alert analysis system that identified antibiotic medication orders and evaluated user response to dosing alerts. Orders associated with overridden alerts were examined for evidence of administration and the delivered dose was compared to pharmacy-derived dosing rules to confirm true overdoses. True overdose cases were reviewed for association with known ADEs. Of 55 546 orders reviewed, 539 were true overdose orders, which lead to 1965 known overdose administrations. Documentation of loose stools and diarrhea was significantly increased following drug administration in the overdose group. Dosing rule thresholds were altered to reflect clinically accurate dosing. These rule changes decreased overall alert burden and improved the salience of alerts. Electronic algorithm-based detection systems can identify antibiotic overdoses that are clinically relevant and are associated with known ADEs. The system also serves as a platform for evaluating the effects of modifying electronic dosing rules. These modifications lead to decreased alert burden and improvements in response to decision support alerts. The success of this test case suggests that gains are possible in reducing medication errors and improving patient safety with automated algorithm-based detection systems. Follow-up studies will determine if the positive effects of the system persist and if these changes lead to improved safety outcomes.

Pharmacist impact on time to antibiotic administration in patients with sepsis in an ED

PurposeThe purpose was to determine if the physical presence of a clinical pharmacist in the emergency department (ED) would decrease antibiotic order to administration time in adult patients with sepsis, severe sepsis, or septic shock. MethodsWe conducted a retrospective review of adult patients presenting to the ED between January and December 2014 with a diagnosis of sepsis, severe sepsis, or septic shock who required intravenous antibiotics. ResultsA total of 186 patients (92 patients when an ED pharmacist was present and 94 when no ED pharmacist was present) were included in the analysis. Baseline characteristics were similar between groups. When a pharmacist was present, patients received antibiotics sooner (median 0.61 vs 0.88 hour, P=.001), Surviving Sepsis Campaign goals for antibiotic administration time were more likely to be met (88% vs 72%, P=.0097), and initial antibiotics were appropriate more often (97% vs 81%, P=.0008). No significant differences were noted in intensive care unit length of stay, hospital length of stay, ventilator days, or in-hospital mortality. ConclusionsPhysical presence of a clinical pharmacist in the ED decreased time to administration and increased appropriateness of intravenous antibiotics for adult patients with sepsis, severe sepsis, or septic shock.

Implementation of an Automatic Stop Order and Initial Antibiotic Exposure in Very Low Birth Weight Infants.

Objective To evaluate if an antibiotic automatic stop order (ASO) changed early antibiotic exposure (use in the first 7 days of life) or clinical outcomes in very low birth weight (VLBW) infants. Study Design We compared birth characteristics, early antibiotic exposure, morbidity, and mortality data in VLBW infants (with birth weight <= 1500 g) born 2 years before (pre-ASO group, n = 313) to infants born in the 2 years after (post-ASO, n = 361) implementation of an ASO guideline. Early antibiotic exposure was quantified by days of therapy (DOT) and antibiotic use > 48 hours. Secondary outcomes included mortality, early mortality, early onset sepsis (EOS), and necrotizing enterocolitis. Results Birth characteristics were similar between the two groups. We observed reduced median antibiotic exposure (pre-ASO: 6.5 DOT vs. Post-ASO: 4 DOT; p < 0.001), and a lower percentage of infants with antibiotic use > 48 hours (63.4 vs. 41.3%; p < 0.001). There were no differences in mortality (12.1 vs 10.2%; p = 0.44), early mortality, or other reported morbidities. EOS accounted for less than 10% of early antibiotic use. Conclusion Early antibiotic exposure was reduced after the implementation of an ASO without changes in observed outcomes.

A prospective study of an inpatient febrile neutropenia clinical practice guideline in oncology patients.

114 Background: Febrile neutropenia (FN) is a common complication in oncology patients and is associated with significant morbidity and mortality if untreated. Because of this, it is regarded as a medical emergency. FN treatment guidelines universally recommend the prompt initiation ( &lt; 60 minutes) of intravenous antibiotic therapy. We hypothesized that a quality initiative project creating a new FN clinical practice guideline (CPG) would reduce the time to antibiotic administration (TTA) for inpatient oncology patients with FN. Methods: This prospective study compared patients diagnosed with an initial episode of FN (4/2015-8/2015) with historical controls (4/2013-8/2013) on an inpatient oncology floor at a tertiary care academic hospital. Interventions included the development of an institutional CPG which standardized the definition of FN, implementation of a new clinical workflow, creation of education sessions for LIP’s and RN’s, and creation of an electronic FN order set. The primary outcome was TTA, with target goal being &lt; 60 minutes from the onset of fever. Secondary outcomes included time to antibiotic order, need for ICU care, and 30-day mortality. P-values were calculated using a chi-square test. Results: In total, 31 consecutive FN episodes were observed over the 5-month study period. The median TTA decreased from 112 minutes in 2013 to 37.5 minutes in 2015 (p &lt; 0.001). 30/31 (97%) patients in the 2015 group had their antibiotics ordered within 60 minutes vs 14/22 (64%) in 2013 (p = 0.002). 26/31 (84%) patients in the 2015 group had antibiotics administered within 60 minutes vs 4/22 (18%) in 2013 (p &lt; 0.001). There was no significant difference in need for ICU care (16% in 2015 vs 9% in 2013, p = NS) or 30-day mortality (6% in 2015 vs 5% in 2013, p = NS). Conclusions: The inpatient FN CPG is a significant quality improvement initiative that has shown significant improvements in TTA. We were able to demonstrate value by a significant decrease in median TTA compared to historical controls with a significantly increased percentage of patients having both antibiotics ordered and administered within 60 minutes. In our cohort of patients, no significant differences were noted in rates of ICU care or 30-day mortality.

Impact of an emergency medicine pharmacist on antibiotic dosing adjustment

ObjectiveOverall medication-related errors in the emergency department (ED) are 13.5 times more likely to occur in the absence of an emergency medicine pharmacist (EMP). Although the effectiveness of pharmacist-driven renal dosing adjustment has been studied in the intensive care unit, data are lacking in the ED setting. The aim of our study was to evaluate the appropriateness of antibiotic dosing when an EMP is physically present in the ED compared to when absent. MethodsThis was a retrospective cohort study of patients treated in a level I trauma center with 75 adult and 12 pediatric beds and an annual census of 90000 patients. The study period was from March 1 to September 30, 2014. An EMP was physically present in the ED from 11:00 to 01:30 and absent from 01:31 to 10:59. Male and female patients 18years and older were considered for inclusion if cefazolin, cefepime, ciprofloxacin, piperacillin-tazobactam, or vancomycin was ordered. The primary outcome was the composite rate of correct antibiotic dose and frequency. Statistics included a multivariable logistic regression using age, sex, presence of EMP, and creatinine clearance as independent predictors of correct antibiotic use. ResultsA total 210 cases were randomly chosen for evaluation, half during times when EMPs were present and half when they were absent. There were 130 males (62%) with an overall mean age of 54±18years. Overall, 178 (85%) of 210 of the antibiotic orders were appropriate, with 95% appropriate when an EMP was present compared to 74% when an EMP was absent (odds ratio, 6.9; 95% confidence interval, 2.5-18.8). In a logistic regression model, antibiotic appropriateness was independently associated with the presence of the EMP and creatinine clearance. ConclusionAntibiotics that require renal and/or weight dosing adjustment are 6.5 times more likely to be appropriate in the ED when an EMP is present. Prevalence of antibiotic dosing error is related to both the presence of EMPs and the degree of renal impairment.

Battle of the Bugs: Progress in the Fight Against Antibiotic Resistance

Battle of the Bugs: Progress in the Fight Against Antibiotic Resistance

Antibiotic use and childhood body mass index trajectory.

Background/ObjectivesAntibiotics are commonly prescribed for children. Use of antibiotics early in life has been linked to weight gain but there are no large-scale, population-based, longitudinal studies of the full age range among mainly healthy children.Subjects/MethodsWe used electronic health record data on 163,820 children aged 3-18 years and mixed effects linear regression to model associations of antibiotic orders with growth curve trajectories of annual body mass index (BMI) controlling for confounders. Models evaluated three kinds of antibiotic associations – reversible (time-varying indicator for an order in year before each BMI), persistent (time-varying cumulative orders up to BMIj), and progressive (cumulative orders up to prior BMI [BMIj-1]) – and whether these varied by age.ResultsAmong 142,824 children under care in the prior year, a reversible association was observed and this short-term BMI gain was modified by age (p < 0.001); effect size peaked in mid-teen years. A persistent association was observed and this association was stronger with increasing age (p < 0.001). The addition of the progressive association among children with at least three BMIs (n = 79,752) revealed that higher cumulative orders were associated with progressive weight gain; this did not vary by age. Among children with an antibiotic order in the prior year and at least seven lifetime orders, antibiotics (all classes combined) were associated with an average weight gain of approximately 1.4 kg at age 15 years. When antibiotic classes were evaluated separately, the largest weight gain at 15 years was associated with macrolide use.ConclusionsWe found evidence of reversible, persistent, and progressive effects of antibiotic use on BMI trajectories, with different effects by age, among mainly healthy children. The results suggest that antibiotic use may influence weight gain throughout childhood and not just during the earliest years as has been the primary focus of most prior studies.