Assessment of empirical antibiotic therapy optimisation in six hospitals: an observational cohort study
| Autor: | Theodoros Kelesidis, Heather Young, Edward Septimus, Marin L. Schweizer, Nikolay P. Braykov, Daniel Z. Uslan, Eli N. Perencevich, Ramanan Laxminarayan, Daniel J. Morgan, Birgir Johannsson, Arjun Srinivasan, Scott A. Weisenberg, Joseph B. Cantey |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Adult
Male medicine.medical_specialty Clinical Sciences MEDLINE Microbiology Article Cohort Studies Young Adult Clinical Research Internal medicine Health care 80 and over Humans Medicine Young adult Intensive care medicine Aged Multinomial logistic regression Aged 80 and over business.industry Prevention Bacterial Infections Middle Aged Hospitals United States Anti-Bacterial Agents Discontinuation Regimen Treatment Outcome Emerging Infectious Diseases Infectious Diseases Medical Microbiology Public Health and Health Services Female Observational study Infection business Cohort study |
| Zdroj: | The Lancet. Infectious diseases, vol 14, iss 12 |
| ISSN: | 1473-3099 |
| Popis: | Summary Background Modification of empirical antimicrobials when warranted by culture results or clinical signs is recommended to control antimicrobial overuse and resistance. We aimed to assess the frequency with which patients were started on empirical antimicrobials, characteristics of the empirical regimen and the clinical characteristics of patients at the time of starting antimicrobials, patterns of changes to empirical therapy at different timepoints, and modifiable factors associated with changes to the initial empirical regimen in the first 5 days of therapy. Methods We did a chart review of adult inpatients receiving one or more antimicrobials in six US hospitals on 4 days during 2009 and 2010. Our primary outcome was the modification of antimicrobial regimen on or before the 5th day of empirical therapy, analysed as a three-category variable. Bivariate analyses were used to establish demographic and clinical variables associated with the outcome. Variables with p values below 0·1 were included in a multivariable generalised linear latent and mixed model with multinomial logit link to adjust for clustering within hospitals and accommodate a non-binary outcome variable. Findings Across the six study sites, 4119 (60%) of 6812 inpatients received antimicrobials. Of 1200 randomly selected patients with active antimicrobials, 730 (61%) met inclusion criteria. At the start of therapy, 220 (30%) patients were afebrile and had normal white blood cell counts. Appropriate cultures were collected from 432 (59%) patients, and 250 (58%) were negative. By the 5th day of therapy, 12·5% of empirical antimicrobials were escalated, 21·5% were narrowed or discontinued, and 66·4% were unchanged. Narrowing or discontinuation was more likely when cultures were collected at the start of therapy (adjusted OR 1·68, 95% CI 1·05–2·70) and no infection was noted on an initial radiological study (1·76, 1·11–2·79). Escalation was associated with multiple infection sites (2·54, 1·34–4·83) and a positive culture (1·99, 1·20–3·29). Interpretation Broad-spectrum empirical therapy is common, even when clinical signs of infection are absent. Fewer than one in three inpatients have their regimens narrowed within 5 days of starting empirical antimicrobials. Improved diagnostic methods and continued education are needed to guide discontinuation of antimicrobials. Funding US Centers for Disease Control and Prevention, Division of Healthcare Quality Promotion; Robert Wood Johnson Foundation; US Department of Veterans Administration; US Department of Homeland Security. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|