scholarly journals 128. Development of an Analytics Dashboard to Monitor Antimicrobial Selection and Duration for Pneumonia

2021 ◽  
Vol 8 (Supplement_1) ◽  
pp. S177-S177
Author(s):  
Ashley Marx ◽  
Sydney E Browder ◽  
Jason C Liu ◽  
Michael J Swartwood ◽  
Nikolaos Mavrogiorgos

Abstract Background Analytical and visual tools can be used to monitor progress for a variety of ASP key performance indicators, but few data describe the process of building disease-state specific tools to retrospectively monitor antimicrobial choice and duration. We describe process and methods for development of a pneumonia dashboard. Methods In late 2019, the Carolina ASP began construction of a dashboard to monitor antimicrobial selection and duration in patients admitted with a diagnosis code (ICD-10) consistent with pneumonia. Data extracted from the medical record after discharge included: admission date and time, admission and discharge ICD-10s, inpatient orders and administrations for agents included in the NHSN Antimicrobial Use (AU) option, and antimicrobials ordered at discharge with associated ICD-10. Extracted data fields were validated using a one-month sample. Displays were constructed to trend selection during the first 48 hours of admission, inpatient days of therapy, and total length of therapy (sum of inpatient + outpatient days) for patients who received a discharge prescription for an antimicrobial included in the AU option that was associated with an ICD-10 consistent with pneumonia. Trends observed between Jan 2020 and Mar 2021 are reported. Results 341 admissions were trended. Within the first two days of admission, monthly proportions of patients receiving an antimicrobial by category were: anti-MRSA therapies (vancomycin, linezolid), 0.20 to 0.75; broad spectrum beta-lactams (e.g., cefepime, pip/tazo), 0.40 to 0.81; CAP therapies (e.g., ceftriaxone, levofloxacin), 0.48 to 1.00 (Figure). Median inpatient duration of therapy was 5 days (IQR 3-8; range 1 to 68). Total length of therapy was median 6 days (IQR 4-10; range 1 to 68). Figure. Proportions of Patients Prescribed Antimicrobial Categories of Interest During the First 48 Hours of Admissions for Pneumonia. Legend: Anti-MRSA = vancomycin or linezolid; HAP abx = cefepime, piperacillin/tazobactam, ceftazidime, meropenem; CAP = ceftriaxone, azithromycin, ampicillin/sulbactam, amoxicillin/clavulanate, cefdinir, levofloxacin. Conclusion Automated reports and visual tools can provide actionable insights for ASP practice. From this dashboard, we identified variable but high rates of anti-MRSA and broad-spectrum beta-lactam use within the first 48 hours of admission. The median inpatient and total length of therapy of 5 and 6 days, respectively, were similar to guideline-recommended durations. The up-front cost for building analytical tools can be substantial, but can be viewed as an investment if the metrics and methods are carefully selected. Disclosures All Authors: No reported disclosures

Antibiotics ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 5
Author(s):  
Sílvia Simó ◽  
Eneritz Velasco-Arnaiz ◽  
María Ríos-Barnés ◽  
María Goretti López-Ramos ◽  
Manuel Monsonís ◽  
...  

The effectiveness of antimicrobial stewardship programs (ASP) in reducing antimicrobial use (AU) in children has been proved. Many interventions have been described suitable for different institution sizes, priorities, and patients, with surgical wards being one of the areas that may benefit the most. We aimed to describe the results on AU and length of stay (LOS) in a pre-post study during the three years before (2014–2016) and the three years after (2017–2019) implementation of an ASP based on postprescription review with feedback in children and adolescents admitted for appendix-related intraabdominal infections (AR-IAI) in a European Referral Paediatric University Hospital. In the postintervention period, the quality of prescriptions (QP) was also evaluated. Overall, 2021 AR-IAIs admissions were included. Global AU, measured both as days of therapy/100 patient days (DOT/100PD) and length of therapy (LOT), and global LOS remained unchanged in the postintervention period. Phlegmonous appendicitis LOS (p = 0.003) and LOT (p < 0.001) significantly decreased, but not those of other AR-IAI diagnoses. The use of piperacillin–tazobactam decreased by 96% (p = 0.044), with no rebound in the use of other Gram-negative broad-spectrum antimicrobials. A quasisignificant (p = 0.052) increase in QP was observed upon ASP implementation. Readmission and case fatality rates remained stable. ASP interventions were safe, and they reduced LOS and LOT of phlegmonous appendicitis and the use of selected broad-spectrum antimicrobials, while increasing QP in children with AR-IAI.


2018 ◽  
Author(s):  
María Pilar Arenaz Callao ◽  
Rubén González del Río ◽  
Ainhoa Lucía Quintana ◽  
Charles J. Thompson ◽  
Alfonso Mendoza-Losana ◽  
...  

ABSTRACTThe potential use of clinically approved beta-lactams for Buruli ulcer (BU) treatment was investigated with representative classes analyzed in vitro for activity against Mycobacterium ulcerans. Beta-lactams tested were effective alone and displayed a strong synergistic profile in combination with antibiotics currently used to treat BU, i.e. rifampicin and clarithromycin; this activity was further potentiated in the presence of the beta-lactamase inhibitor clavulanate. In addition, quadruple combinations of rifampicin, clarithromycin, clavulanate and beta-lactams resulted in multiplicative reductions in their minimal inhibitory concentration (MIC) values. The MIC of amoxicillin against a panel of clinical isolates decreased more than 200-fold within this quadruple combination. Amoxicillin/clavulanate formulations are readily available with clinical pedigree, low toxicity, and orally and pediatric available; thus, supporting its potential inclusion as a new anti-BU drug in current combination therapies.


1997 ◽  
Vol 41 (1) ◽  
pp. 148-155 ◽  
Author(s):  
S K Spangler ◽  
M R Jacobs ◽  
P C Appelbaum

Agar dilution MIC methodology was used to test the activities of GV 118819X (sanfetrinem), ampicillin, amoxicillin, amoxicillin-clavulanate, cefpodoxime, loracarbef, levofloxacin, clarithromycin, ceftriaxone, imipenem, and vancomycin against 53 penicillin-susceptible, 84 penicillin-intermediate and 74 penicillin-resistant pneumococci isolated in the United States. GV 118819X was the most active oral beta-lactam, with MIC at which 50% of the isolates were inhibited (MIC50)/MIC90 values of 0.008/0.03, 0.06/0.5, and 0.5/1.0 micrograms/ml against penicillin-susceptible, -intermediate, and -resistant stains, respectively. Amoxicillin and amoxicillin in the presence of clavulanate (2:1) were the second most-active oral beta-lactams, followed by ampicillin and cefpodoxime; loracarbef was not active against penicillin-intermediate and -resistant strains. Clarithromycin was most active against penicillin-susceptible strains but was less active against intermediate and resistant stains. All pneumococcal stains were inhibited by ceftriaxone and imipenem at MICs of < or = 4.0 and < or = 1.0 micrograms/ml, respectively. The activities of levofloxacin and vancomycin were unaffected by penicillin susceptibility. Time-kill studies of three penicillin-susceptible, three penicillin-intermediate, and three penicillin-resistant pneumococci showed that all compounds, at the broth microdilution MIC, yielded 99.9% killing of all strains after 24 h. Kinetic patterns of all oral beta-lactams, ceftriaxone, and vancomycin were similar relative to the MIC, with 90% killing of all strains first observed after 12 h. However, killing by amoxicillin-clavulanate, imipenem, and levofloxacin was slightly faster and that by clarithromycin was slower than that by the above-described drugs. At 2 x the MIC, more strains were killed earlier than was the case at the MIC, but the pattern seen at the MIC prevailed. When MICs and kill kinetics were combined, sanfetrinem was the most active oral antipneumococcal agent in this study.


Author(s):  
Lakshmi Narasimha G. ◽  
Kalpana P.

Toxic epidermal necrolysis (TEN) is a rare life-threatening adverse drug reaction associated with mucocutaneous eruptions and peeling of skin (sloughing) mostly caused by drugs like sulphonamides, beta lactams, carbamazepine and non-steroidal anti-inflammatory drugs (NSAIDs). Amoxicillin is a broad spectrum, bactericidal, Beta-lactam antibiotic used in treatment of various infections. Here by we have reported the case of amoxicillin induced severe toxic epidermal necrolysis. A Patient admitted in the hospital with the symptoms of epidermal sloughing that resulted in bare dermis as he received Amoxicillin drug for his diagnosis of fever. After clear examination TEN was confirmed and suspected with the cause due to Amoxicillin. The drug was stopped and patient was treated with other drugs for symptomatic cure. The patient was recovered from his condition and improved significantly.


Author(s):  
Armine Sefton

Broad-spectrum antibacterial agents kill most bacteria including gram-positive rods and cocci, gram-negative rods and cocci, and often anaerobes too. Narrow-spectrum agents kill a narrow range of microbes, e.g. benzylpenicillin is mainly active against gram-positive cocci. By and large a narrow-spectrum antimicrobial is less likely to disrupt a patient’s normal flora than a broad-spectrum agent. Hence, if the likely organism is causing an infection it is best to give a narrow-spectrum antimicrobial to treat that specific organism. If a patient presents ‘septic’ and the source of infection is unknown, relevant cultures should be taken followed by broad-spectrum antimicrobial cover. This can later be modified either when the source of infection is found or as a result of microbiology culture results. ● Agents mostly active against gram-positive bacteria include: ■ Penicillin (Also active against Neisseria spp.). ■ Fusidic acid. ■ Macrolides (Also active against Legionella, Campylobacter, Bordetella spp.). ■ Clindamycin. ■ Glycopeptides. ■ Oxazolidinones. ■ Streptogramins. ● Agents mainly active against gram-negative bacteria include: ■ Polymyxin. ■ Trimethoprim. ■ Aminoglycosides (also active against staphylococci and show synergy when combined with beta-lactams against/glycopeptides against streptococci). ■ Monobactams. ■ Temocillin. ● Broad-spectrum antimicrobials include: ■ Beta-lactam plus beta-lactamase inhibitor combinations. ■ Cephalosporins. ■ Carbapenems. ■ Chloramphenicol, Tetracyclines/Glycyclines. A bactericidal agent is a compound that actively kills multiplying bacteria. A bacteriostatic compound inhibits the growth of bacteria. Whether or not an antimicrobial is bactericidal or bacteriostatic depends on a variety of things, including the type of agent, its concentration, and the organism it is being used to treat. It is especially important to try and use a bactericidal agent if the patient’s immune system is impaired or the infection is at a site where it is difficult for the immune system to access, e.g. the heart valves in bacterial endocarditis, the meninges in meningitis. Examples of each are given here: ● Bactericidal agents include beta-lactams, glycopeptides, fluoroquinolones, and aminoglycosides. ● Bacteriostatic agents include macrolides, clindamycin, tetracyclines, trimethoprim, and sulphonamides. The therapeutic index of a drug is the ration of the concentration of drug likely to be toxic to the patient divided by the concentration of drug likely to be clinically effective.


Author(s):  
Olga Lomovskaya ◽  
Debora Rubio-Aparicio ◽  
Ruslan Tsivkovski ◽  
Jeff Loutit ◽  
Michael Dudley

QPX7728 is a cyclic boronate ultra-broad-spectrum beta-lactamase inhibitor, with potent activity against both serine and metallo beta-lactamases. QPX7728 can be delivered systemically by the IV or oral route of administration. Oral β-lactam antibiotics alone or in combination with QPX7728 were evaluated for 1) sensitivity to hydrolysis by various common beta-lactamases and inhibition of hydrolysis by QPX7728; 2) the impact of non-beta-lactamase-mediated resistance mechanisms on potency of beta-lactams; and 3) in vitro activity against a panel of clinical strains producing diverse beta-lactamases. The carbapenem tebipenem had stability for many serine beta-lactamases from all molecular classes followed by cephalosporin ceftibuten. Addition of QPX7728 to tebipenem, ceftibuten and mecillinam completely reversed beta-lactamase-mediated resistance in cloned beta-lactamases from serine and metallo enzyme classes; the degree of potentiation of other beta-lactams varied according to the beta-lactamase produced. Tebipenem, ceftibuten and cefixime had the lowest MICs against laboratory strains with various combinations of beta-lactamases and the intrinsic drug-resistance mechanisms of porin and efflux mutations. There was a high degree of correlation between potency of various combinations against cloned beta-lactamases and efflux/porin mutants and the activity against clinical isolates, showing the importance of both inhibition of beta-lactamase along with minimal impact of general intrinsic resistance mechanisms affecting the beta-lactam. Tebipenem and ceftibuten appeared to be the best beta-lactam antibiotics when combined with QPX7728 for activity against Enterobacterales that produce serine or metallo beta-lactamases.


2016 ◽  
Vol 37 (8) ◽  
pp. 909-915 ◽  
Author(s):  
Julie A. Patterson ◽  
Michael B. Edmond ◽  
Samuel F. Hohmann ◽  
Amy L. Pakyz

OBJECTIVENational hospital performance measures for C. difficile infection (CD) are available; comparing antibacterial use among performance levels can aid in identifying effective antimicrobial stewardship strategies to reduce CDI rates.DESIGNHospital-level, cross-sectional analysis.METHODSHospital characteristics (ie, demographics, medications, patient mix) were obtained for 77 hospitals for 2013. Hospitals were assigned 1 of 3 levels of a CDI standardized infection ratio (SIR): ‘Worse than,’ ‘Better than,’ or ‘No different than’ a national benchmark. Analyses compared medication use (total and broad-spectrum antibacterials) for 3 metrics: days of therapy per 1,000 patient days; length of therapy; and proportion of patients receiving a medication across SIR levels. A multivariate, ordered-probit regression identified characteristics associated with SIR categories.RESULTSRegarding total average antimicrobial use per patient, there was a significant difference detected in mean length of therapy: ‘No different’ hospitals having the longest (4.93 days) versus ‘Worse’ (4.78 days) and ‘Better’ (4.43 days) (P<.01). ‘Better’ hospitals used fewer total antibacterials (693 days of therapy per 1,000 patient days) versus ‘No different’ (776 days) versus ‘Worse’ (777 days) (P<.05). The ‘Better’ hospitals used broad-spectrum antibacterials for a shorter average length of therapy (4.03 days) versus ‘No different’ (4.51 days) versus ‘Worse’ (4.38 days) (P<.05). ‘Better’ hospitals used fewer broad-spectrum antibacterials (310 days of therapy per 1,000 patient days) versus ‘No different’ (364 days) versus ‘Worse’ (349 days) (P<.05). Multivariate analysis revealed that the proportion of elderly patients and chemotherapy days of therapy per 1,000 patient days was significantly negatively associated with the SIR.CONCLUSIONSThese findings have potential implications regarding the need to fully account for hospital patient mix when carrying out inter-hospital comparisons of CDI rates.Infect Control Hosp Epidemiol 2016;37:909–915


Antibiotics ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 637
Author(s):  
Vladimir Gostev ◽  
Olga Kalinogorskaya ◽  
Ksenia Ivanova ◽  
Ekaterina Kalisnikova ◽  
Irina Lazareva ◽  
...  

Selective pressure of beta-lactams is thought to be responsible for mutation selection in methicillin-susceptible Staphylococcus aureus (MSSA). We used next-generation sequencing to compare the genomes of beta-lactamase-positive (SA0707) and -negative (SA0937) MSSA isolates with their derivatives obtained after selection with oxacillin, ceftaroline, or meropenem. Selection with oxacillin and ceftaroline caused a rapid and significant (6–8 times) increase in the minimum inhibitory concentration (MICs) of oxacillin, penicillin, amoxicillin/clavulanate, and ceftaroline against the derivatives of both isolates, associated with growth impairment. Selection with meropenem caused a limited increase in the MICs of all beta-lactams against both isolates. During the initial stages of selection (after 5–15 passages), mutations were detected only in some reads, which indicated the heterogeneity of the population; however, during the later stages, either the population reversed to the wild type or fixation of the mutation was observed in the entire population. Selection with different beta-lactams caused diverse mutational events, but common mutations were detected in gdpP, all penicillin-binding proteins, cell wall regulators (vraST, graR), and deletions in the promoter region of pbp4. Therefore, the disk diffusion test with cefoxitin does not reveal resistance associated with these mechanisms in some cases, which can lead to the failure of beta-lactam therapy.


2018 ◽  
Vol 32 (4) ◽  
pp. 399-403 ◽  
Author(s):  
Kacie E. Clark ◽  
Mary E. Briand ◽  
Om Kapoor ◽  
Ameen Pirasteh

Methods: This quasi-experimental study compared the aztreonam utilization in patients with self-reported beta-lactam allergies admitted to an inpatient service between two study periods (pre- and post-implementation). Post-implementation followed the initiation of a standardized beta-lactam allergy questionnaire, a student pharmacist–driven performance improvement project for beta-lactam allergy documentation. Interviews clarified the allergy, reaction history, and any previous tolerance of beta-lactams. If receiving aztreonam at the time of the questionnaire, recommendations were made for changes in therapy if deemed appropriate by the pharmacist. Results: A total of 95 patients were included in the pre-implementation group versus 65 patients in the post-implementation group. Baseline characteristics were similar. The average number of aztreonam doses per 1000 patient-days in the post-implementation group was decreased (21.23 vs 9.05, P = .003). The average number of days of therapy per 1000 patient-days in the post-implementation group was decreased (8.79-4.24, P = .016). An increase in the number of aztreonam de-escalations was observed post-implementation ( P = .003). A total of 122 questionnaires were completed with 114 allergy documentation updates. There were no reported instances of adverse events. Conclusion: Utilization of a standardized beta-lactam allergy questionnaire as a pharmacy education tool resulted in a statistically significant decrease in aztreonam utilization, based on doses, days of therapy, and de-escalations.


2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S137-S137
Author(s):  
Emily Sinclair ◽  
Jeremy J Frens ◽  
Dustin Zeigler ◽  
Megan Mccarthy ◽  
Roopali Sharma

Abstract Background Recently, studies about gram-negative bacteremia have shown that shorter courses and early step-down therapy with oral agents have equivalent outcomes compared to longer courses with intravenous therapy. The question remains, however, as to which oral agents may be most appropriate for oral conversion therapy. At Cone Health it has been common practice to de-escalate to oral beta-lactams due to local susceptibility patterns and safety concerns with fluoroquinolones. This study retrospectively evaluated the 30-day clinical outcomes of patients treated with oral beta-lactams as step-down therapy vs. fluoroquinolones and trimethoprim-sulfamethoxazole (TMP-SMX). Methods In this IRB approved, retrospective review, 200 patients with gram-negative rod bacteremia were screened. Sixty-seven patients were excluded due to inpatient mortality (17), transfer to another facility (7), hospice care (6), or receipt of intravenous antibiotics only (37). The most common organism isolated was E. coli at 57% (75/133) and a majority of cases had a genitourinary source, 79/133 (59%). The primary endpoints were 30-day readmission and mortality. Secondary endpoints included total length of antibiotic therapy and length of IV therapy. Results Of the 133 patients included, 101 (76%) received an oral beta-lactam and 32 (24%) received either a fluoroquinolone or TMP-SMX. In the beta-lactam group 22/101 (21.8%) were re-admitted within 30-days compared to 5/32 (15.6%) in the fluoroquinolone and TMP-SMX group (p=0.412). Each group had one patient re-admitted due to recurrence of bacteremia. The majority of patients in the beta-lactam group were re-admitted for a non-infectious reason (82%). Only 1 (1%) patient in the beta-lactam group died within 30 days of discharge compared to 2 (6%) in the fluoroquinolone group (p=0.165). Average total length of therapy in the beta-lactam group was 12.8 days compared to 14 days in the fluoroquinolone and TMP-SMX group (p=0.065). Average length of IV therapy was 3 days in the beta-lactam group and 4 days in the fluoroquinolone and TMP-SMX group (p=0.99). Conclusion At our institution, we have not noted any significant difference in 30-day bacteremia recurrence or mortality between those who receive oral beta-lactams or fluoroquinolones/TMP-SMX. Disclosures All Authors: No reported disclosures


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