scholarly journals Outcomes of Rapid Identification of Bacteremia in Combination with Antimicrobial Stewardship Intervention

2020 ◽  
Vol 41 (S1) ◽  
pp. s340-s341
Author(s):  
Marilia Bernardes ◽  
Julieth Formosa ◽  
Julia Bini Viotti ◽  
Anthony Febres-Aldana ◽  
Kenneth Ratzan
Keyword(s):  
Antibiotic Therapy ◽  
Antimicrobial Stewardship ◽  
Rapid Identification ◽  
Antibiotic Administration ◽  
Antibiotic Overuse ◽  
Patient Demographics ◽  
Gram Negative Bacteremia ◽  
Polymicrobial Bacteremia ◽  
N 93 ◽  
Organism Identification

Background: Rapid diagnostic tests designed to provide bacterial identification and detection of resistance genes directly from positive blood cultures can significantly reduce the time to definitive results, ensuring appropriate and timely antibiotic administration while simultaneously decreasing antibiotic overuse and development of antimicrobial resistance. However, their impact on in-hospital mortality and length of stay (LOS) is yet to be fully assessed. Methods: We retrospectively reviewed bacteremia cases in patients hospitalized over a 6-month period before (n = 78) and after (n = 93) the implementation of Verigene bacterial nanoparticle testing. Exclusion criteria included age >90 years, bacteremia thought to be a contaminant, polymicrobial bacteremia, or hospice admission. Verigene was performed at a central laboratory from 6 a.m. to 11 p.m. Pharmacists notified physicians of results and assisted with antibiotic modifications. Patient demographics, time to organism identification, time to effective antimicrobial therapy, and other key clinical parameters were compared. The primary outcomes were in-hospital LOS, 14-day mortality, and 30-day mortality. Secondary outcomes included time to effective antibiotic therapy and intensive care unit (ICU) LOS. Results: Organism identification was achieved more quickly (4.9 hours vs 44.5 hours; P < .001) and effective antibiotic therapy was started earlier after Verigene implementation. The mean in-hospital LOS decreased from 13.15 days to 10.02 days (P = .0071) after the Verigene intervention, despite a higher mean Charlson comorbidity index among the cases. Mortality was similar between groups. Conclusions: Rapid identification of gram-positive and gram-negative bacteremia with an antimicrobial stewardship intervention can decrease time to effective antibiotic therapy and total LOS.Funding: NoneDisclosures: None

scholarly journals 2006. Evaluation of Rapid Blood Culture Identification with Antimicrobial Stewardship Treatment Recommendations at a Community Health System in Patients with Gram-negative Bacteremia: Adequacy, Adherence, and Outcomes

2019 ◽  
Vol 6 (Supplement_2) ◽  
pp. S673-S674
Author(s):  
Erin Deja ◽  
Jeremy J Frens
Keyword(s):  
Blood Culture ◽  
Antimicrobial Stewardship ◽  
Treatment Algorithm ◽  
Resistance Mechanism ◽  
Treatment Recommendations ◽  
Gram Negative ◽  
Gram Negative Bacteremia ◽  
Adequate Coverage ◽  
Culture Identification ◽  
Organism Identification

Abstract Background Sepsis mortality is greatly affected by the timely receipt of appropriate antibiotics. FilmArray Blood Culture Identification (BCID) is used at Cone Health to identify organisms in blood cultures within one to 2 hours after growth detected. The Cone Health antimicrobial stewardship (AMS) team has created treatment recommendations for each organism and resistance mechanism identifiable by BCID. Results and antibiotic recommendations are communicated in real time to providers by clinical pharmacists. The purpose of this evaluation was to validate the adequacy of antibiotics recommended by the BCID treatment algorithm for Gram-negative rods (GNR); assess proper implementation of the BCID notification procedure; and evaluate its effect on AMS. Methods Patients with GNR BCID results in January and April 2018 were retrospectively identified. Information collected for each patient included: demographics, location, organism, admission antibiotics, pharmacist compliance with BCID procedure, recommendation acceptance rate, organism susceptibility, changes to antibiotics post-BCID and final cultures, extended-spectrum β-lactamase (ESBL) incidence, length of antibiotic therapy, and patient outcome. Results A total of 101 patients were evaluated. The BCID treatment algorithm recommendations covered 97% of identified organisms (Figures 1–4). Resistant isolates were ESBL producers. Pharmacist antibiotic recommendations matched the treatment algorithm 66% of the time. Providers accepted 90% of pharmacist recommendations. Twenty-two percent of antibiotics were not de-escalated after BCID results without identifiable reason. Conclusion The BCID treatment algorithm provided adequate coverage for nearly all identified organisms, except ESBLs. However, patients with ESBL organisms all survived to hospital discharge. Pharmacists are following the BCID protocol in a majority of cases. One-third of recommendations deviated from the algorithm but only 17% did not have documented reasoning. Providers are very receptive to pharmacist input, with only 8% of recommendations rejected without documented reasoning. Finally, nearly a quarter of empiric antibiotics were not de-escalated despite organism identification, which represents opportunity for improvement. Disclosures All authors: No reported disclosures.

scholarly journals Can the Xpert MRSA/SA BC assay be used as an antimicrobial stewardship tool? A prospective assay validation and descriptive impact assessment study in a South African setting

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Kessendri Reddy ◽  
Andrew Whitelaw
Keyword(s):  
Bloodstream Infection ◽  
South African ◽  
Antimicrobial Stewardship ◽  
Antibiotic Use ◽  
Rapid Identification ◽  
Western Cape ◽  
Beta Lactams ◽  
Coagulase Negative Staphylococci ◽  
Methicillin Resistant ◽  
Potential Impact

Abstract Background Positive blood cultures showing Gram positive cocci in clusters signifies either Staphylococcus aureus or the less-virulent coagulase-negative staphylococci. Rapid identification and methicillin susceptibility determination with the Xpert MRSA/SA BC assay can improve management of S. aureus bloodstream infection and reduce inappropriate antibiotic use. Methods We prospectively evaluated the Xpert MRSA/SA BC assay in comparison with culture, on samples referred to our laboratory in the Western Cape, South Africa. We interviewed attending clinicians upon culture result availability, to assess antibiotic choices and estimate potential impact of the assay. Results Of the 231 samples included, there was 100% concordance between the Xpert MRSA/SA BC assay and culture (methicillin-resistant S. aureus 15/15, methicillin-susceptible S. aureus 42/42, coagulase-negative staphylococci 170/170). Time to final result could be reduced by approximately 30 h with the assay. Of the 178 patients with adequate antibiotic history, optimisation of antistaphylococcal therapy could have occurred more than 1 day sooner in 68.9% with S. aureus bloodstream infection (31/45, 95% CI 53.2–81.4%). Six of the 11 patients with methicillin-resistant S. aureus bloodstream infection (54.5%) could have received anti-MRSA cover sooner. Fifty-four days of antibiotic therapy could have been spared, equating to 0.3 days (95% CI, 0.2–0.4) saved per patient, driven by broad-spectrum beta-lactams (32 days, in 18.0% of the cohort). Conclusion This assay has potential as an antimicrobial stewardship tool; costing and impact on clinical outcome in patients with S. aureus bloodstream infection should be assessed.

scholarly journals Evaluation of the impact of the Accelerate Pheno™ system on time to result for differing antimicrobial stewardship intervention models in patients with gram-negative bloodstream infections

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Gerald Elliott ◽  
Michael Malczynski ◽  
Viktorjia O. Barr ◽  
Doaa Aljefri ◽  
David Martin ◽  
...  
Keyword(s):  
Antimicrobial Stewardship ◽  
Bloodstream Infections ◽  
Standard Of Care ◽  
Resistance Mechanisms ◽  
Gram Negative ◽  
Intervention Models ◽  
Gram Negative Bacteremia ◽  
Potential Impact ◽  
Potential Clinical Impact ◽  
The Impact

Abstract Background Initiating early effective antimicrobial therapy is the most important intervention demonstrated to decrease mortality in patients with gram-negative bacteremia with sepsis. Rapid MIC-based susceptibility results make it possible to optimize antimicrobial use through both escalation and de-escalation. Method We prospectively evaluated the performance of the Accelerate Pheno™ system (AXDX) for identification and susceptibility testing of gram-negative species and compared the time to result between AXDX and routine standard of care (SOC) using 82 patient samples and 18 challenge organisms with various confirmed resistance mechanisms. The potential impact of AXDX on time to antimicrobial optimization was investigated with various simulated antimicrobial stewardship (ASTEW) intervention models. Results The overall positive and negative percent agreement of AXDX for identification were 100 and 99.9%, respectively. Compared to VITEK® 2, the overall essential agreement was 96.1% and categorical agreement was 95.4%. No very major or major errors were detected. AXDX reduced the time to identification by an average of 11.8 h and time to susceptibility by an average of 36.7 h. In 27 patients evaluated for potential clinical impact of AXDX on antimicrobial optimization, 18 (67%) patients could potentially have had therapy optimized sooner with an average of 18.1 h reduction in time to optimal therapy. Conclusion Utilization of AXDX coupled with simulated ASTEW intervention notification substantially shortened the time to potential antimicrobial optimization in this cohort of patients with gram-negative bacteremia. This improvement in time occurred when ASTEW support was limited to an 8-h coverage model.

scholarly journals P64 Implementation of a paediatric outpatient parenteral antibiotic therapy (p-OPAT) service at a specialist children’s hospital

2020 ◽  
Vol 105 (9) ◽  
pp. e39.2-e40
Author(s):  
Hannah Porter ◽  
Kate Stock
Keyword(s):  
Data Collection ◽  
Antibiotic Therapy ◽  
Antimicrobial Stewardship ◽  
Antimicrobial Therapy ◽  
List Type ◽  
Parenteral Antibiotic ◽  
Outpatient Parenteral Antimicrobial Therapy ◽  
Paediatric Outpatient ◽  
Bed Days ◽  
One Year

AimThe aim of this project is to optimise patient care, enhance patient experience, improve antimicrobial stewardship and assist patient flow through the hospital.MethodData collection was conducted one day a week over five consecutive weeks. All eligible wards were visited. Patient medication charts were inspected to see if intravenous antimicrobials were prescribed and a patient - specific data collection form was then completed. All the patients that met the eligibility criteria to be put forward for OPAT referral were then considered from a clinical perspective by a paediatric consultant as to their suitability for OPAT or IVOST and discharge. If the patient was deemed suitable for an OPAT discharge or IVOST and discharge a decision was made as to what antimicrobials they would theoretically have been on when discharged home. The number of potential bed days saved was calculated as the number of days between the patients review by the consultant (ie the day of data collection) and the date of their discharge prescription from that episode of care.The following was examinedpercentage of patients with identified pathogenspercentage of patients that had received input from the ID teampercentage of patients that had received input from microbiologythe prevalence of antimicrobials prescribedthe location of the patient’s home residencepatient/parent willingness to go home on OPAT.The data for patient numbers and bed day savings was then extrapolated to 52 weeks in order to be indicative of one year.ResultsOver the five days, 66 patients were identified that met the exclusion criteria to be referred for OPAT or IVOST. After clinical consideration the consultant deemed 4 patients to be suitable for OPAT and 19 for IVOST and discharge which generated a potential bed day saving of 38 bed days. This was comprised of 17 days through providing IVAs via OPAT and 21 days from timelier IVOST and discharge of patients. Extrapolated to be representative of one year, this would be a bed saving to the Trust of 1, 976 bed days.ConclusionThe potential has been identified for the hospital to make considerable bed day savings through the investment in an extended antimicrobial stewardship programme and establishment of a paediatric OPAT service. A business case has been submitted to the hospital board for consideration, with the hope that the service will be funded for a six month probationary period in order to assess its impact over the winter months, when demand for beds and pressures on PICU and theatres are highest.ReferencesPatel S, et al. 2015. Good practice recommendations for paediatric outpatient parenteral antibiotic therapy (p-OPAT) in the UK: a consensus statement. Journal of Antimicrobial Chemotherapy2015;702:360–373.Carter B, et al. Delivery, setting and outcomes of paediatric outpatient parenteral antimicrobial therapy (OPAT): a scoping review. BMJ Open, 2018;8:e021603.Hodgson KA, et al. The use, appropriateness and outcomes of outpatient parenteral antimicrobial therapy. Archives of Disease in Childhood, 2016:10:886–893.Knackstedt ED, et al. Outpatient parenteral antimicrobial therapy in pediatrics: an opportunity to expand antimicrobial stewardship. Infection Control & Hospital „Epidemiology 2015:36:222–224.

scholarly journals Effect of Antibiotic Pretreatment on Cerebrospinal Fluid Profiles of Children with Acute Bacterial Meningitis

2013 ◽  
Vol 2 (2) ◽  
pp. 135-139 ◽  
Author(s):  
S Adhikari ◽  
E Gauchan ◽  
G BK ◽  
KS Rao
Keyword(s):  
Cerebrospinal Fluid ◽  
Bacterial Meningitis ◽  
Antibiotic Therapy ◽  
Lumbar Puncture ◽  
Laboratory Finding ◽  
Clinical Findings ◽  
Acute Bacterial Meningitis ◽  
Antibiotic Administration ◽  
Intravenous Antibiotic ◽  
Considerable Difficulty

Background: Analysis of cerebrospinal fluid is gold standard for diagnosis of meningitis. There is considerable difficulty in interpreting laboratory finding after prior antibiotic therapy. This study was conducted to evaluate the effect of intravenous antibiotic administration before lumbar puncture on cerebrospinal fluid profiles in children with bacterial meningitis. Methods: A hospital based retrospective study carried out using the data retrieved from the medical record department of Manipal Teaching Hospital Pokhara, Nepal; from 1st July 2006 to 31st July 2011. Clinical findings and relevant investigations were entered in a predesigned proforma. Patients were divided in two different groups as bacterial meningitis with and without prior intravenous antibiotic therapy. Various laboratory parameters including CSF were compared between these two groups using the statistical software, SPSS version 18.0. Results: A total of 114 children were included in this study among which 49(43%) children had received intravenous antibiotics before lumbar puncture. Mean CSF WBC count was(267.6± 211 vs. 208.1±125.3.3) and protein level (114.1±65.9 vs. 98.3±37.7mg/dl) in untreated vs. pretreated groups respectively. Neutrophil percentage was decreased (57.1±28.1vs.72.9±18.9) with higher CSF sugar level (43.3±11.8 vs. 51.2±13.2) after prior antibiotics therapy (p<0.001). Conclusion: Antibiotic pretreatment was associated with higher cerebrospinal fluid glucose levels with decreased neutrophils and increased lymphocytes. Pretreatment did not modify total cerebrospinal fluid white blood cell count and cerebrospinal fluid protein levels. Nepal Journal of Medical Sciences | Volume 02 | Number 02 | July-December 2013 | Page 135-139 DOI: http://dx.doi.org/10.3126/njms.v2i2.8963

scholarly journals 2009. Evaluation of Time to Organism Identification and Pharmacist Impact on Antibiotic Prescribing through Utilization of MALDI-TOF at Two Community, Teaching Hospitals

2019 ◽  
Vol 6 (Supplement_2) ◽  
pp. S674-S674
Author(s):  
Samana Walji ◽  
Xia Thai ◽  
Lou Ann Bruno-Murtha ◽  
Rebecca Osgood ◽  
Kenneth Atwell ◽  
...  
Keyword(s):  
Blood Culture ◽  
Antibiotic Therapy ◽  
Antimicrobial Stewardship ◽  
Teaching Hospitals ◽  
Antibiotic Prescribing ◽  
Phase 3 ◽  
Duration Of Therapy ◽  
Maldi Tof ◽  
Mean Time ◽  
Community Teaching

Abstract Background In patients with bacteremia, delay in appropriate therapy is associated with higher morbidity and mortality. Matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) reduces the time to identification (ID) to approximately 30 minutes. Previously published studies show rapid diagnostics need to be coupled with antibiotic stewardship intervention for maximal benefit. Methods Retrospective, observational review at Cambridge and Everett Hospitals, two inpatient community, teaching hospitals that are part of Cambridge Health Alliance. The purpose is to evaluate the impact of MALDI-TOF by reviewing data in three phases: Microscan ID (January 1 to November 30, 2017), MALDI-TOF alone (December 1, 2017 to December 9, 2018), and MALDI-TOF coupled antimicrobial stewardship (December 10, 2018 to April 30, 2019). The laboratory batches all positive blood cultures to be run via MALDI-TOF mid-morning. In phase 3, a pharmacy resident is notified of the result via an automatic page. The resident determines appropriate empiric therapy using an algorithm developed by the Antimicrobial Stewardship Team and contacts the primary team. Data were collected via a laboratory report and chart review. The primary outcome is time to targeted antimicrobial therapy after ID. Secondary outcomes include time to ID, time to susceptibilities, duration of therapy for blood culture contaminants, and number of pharmacy interventions in phase 3. Results Preliminary data indicate mean time targeted antibiotic therapy was 41:45, 35:58, and 27:39 hours:minutes in phases 1, 2, and 3, respectively. Mean time to ID and final susceptibilities was also reduced in phases 2 and 3. The duration of therapy for blood culture contaminants decreased from 53:50 in phase 1 to 32:48 hours:minutes in phase 2. Pharmacy residents in phase 3 successfully implemented 47 total interventions, 24 (51%) after identification. Conclusion Implementation of MALDI-TOF with and without stewardship intervention successfully decreased time to targeted antibiotic therapy in two community hospitals. Future directions include adding an evening MALDI-TOF run and simplifying pharmacy resident standard operating procedure. Disclosures All authors: No reported disclosures.

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