Cited by 1,779Antibiotic Use and ResistanceSepsis Diagnosis and TreatmentNosocomial Infections in ICU

The influence of inadequate antimicrobial treatment of bloodstream infections on patient outcomes in the ICU setting

Ibrahim, Emad H., Sherman, Glenda, Ward, Suzanne, Fraser, Victoria J., Kollef, Marin H.·2000·Chest

Abstract

Study objective To evaluate the relationship between the adequacy of antimicrobial treatment for bloodstream infections and clinical outcomes among patients requiring ICU admission.Design Prospective cohort study.Setting A medical ICU (19 beds) and a surgical ICU (18 beds) from a university-affiliated urban teaching hospital.Patients Between July 1997 and July 1999, 492 patients were prospectively evaluated.Intervention Prospective patient surveillance and data collection.Results One hundred forty-seven patients (29.9%) received inadequate antimicrobial treatment for their bloodstream infections. The hospital mortality rate of patients with a bloodstream infection receiving inadequate antimicrobial treatment (61.9%) was statistically greater than the hospital mortality rate of patients with a bloodstream infection who received adequate antimicrobial treatment (28.4%; relative risk, 2. 18; 95% confidence interval [CI], 1.77 to 2.69; p < 0.001). Multiple logistic regression analysis identified the administration of inadequate antimicrobial treatment as an independent determinant of hospital mortality (adjusted odds ratio [AOR], 6.86; 95% CI, 5.09 to 9.24; p < 0.001). The most commonly identified bloodstream pathogens and their associated rates of inadequate antimicrobial treatment included vancomycin-resistant enterococci (n = 17; 100%), Candida species (n = 41; 95.1%), oxacillin-resistant Staphylococcus aureus (n = 46; 32.6%), coagulase-negative staphylococci (n = 96; 21.9%), and Pseudomonas aeruginosa (n = 22; 10.0%). A statistically significant relationship was found between the rates of inadequate antimicrobial treatment for individual microorganisms and their associated rates of hospital mortality (Spearman correlation coefficient = 0.8287; p = 0.006). Multiple logistic regression analysis also demonstrated that a bloodstream infection attributed to Candida species (AOR, 51.86; 95% CI, 24.57 to 109.49; p < 0.001), prior administration of antibiotics during the same hospitalization (AOR, 2.08; 95% CI, 1.58 to 2.74; p = 0.008), decreasing serum albumin concentrations (1-g/dL decrements) (AOR, 1.37; 95% CI, 1.21 to 1.56; p = 0.014), and increasing central catheter duration (1-day increments) (AOR, 1.03; 95% CI, 1.02 to 1.04; p = 0.008) were independently associated with the administration of inadequate antimicrobial treatment.Conclusions The administration of inadequate antimicrobial treatment to critically ill patients with bloodstream infections is associated with a greater hospital mortality compared with adequate antimicrobial treatment of bloodstream infections. These data suggest that clinical efforts should be aimed at reducing the administration of inadequate antimicrobial treatment to hospitalized patients with bloodstream infections, especially individuals infected with antibiotic-resistant bacteria and Candida species.

Integrity signals

Registry

Crossref · 10.1378/chest.118.1.146

Cites

49 of 49 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Prompt identification of invasive candidiasis through risk factor analysis and diagnostic assays is a key factor affecting sepsis-related mortality.

    “The importance of prompt identification of IC through a combination of risk factor analysis and diagnostic assays has been demonstrated to be a key factor affecting sepsis-related mortality.[32][33][34][35][36][37][38][39][40][41]”
  • In an early intensive care unit study, adequate antimicrobial therapy defined by in vitro susceptibility testing was associated with 33% lower mortality.

    “One of the earliest studies to examine the effect of appropriate antimicrobial therapy in the ICU observed a 33% lower mortality in patients receiving adequate therapy defined by in vitro antimicrobial susceptibility testing.33”
  • Patients with invasive candidiasis have excessive rates of inappropriate initial therapy and higher mortality than intensive care unit patients with bacterial infections.

    “Studies on patients with IC have similarly shown excessive rates of inappropriate initial therapy and even higher mortality than infections caused by bacterial pathogens in the ICU setting.10,14,33,34,[42][43][44][45][46][47]”
  • Inappropriate treatment was most common for Enterococcus species, but inadequate coverage for invasive candidiasis was the second most common error and was associated with the highest mortality.

    “Inappropriate treatment was most common for Enterococcus spp; however, inadequate coverage for IC was the second most common error and was associated with the highest mortality.”
  • The highest rates of candidemia in infants less than 1 year of age and in adults over 65 years have been reported from two U.S. studies.

    “The highest rates of candidemia in infants less than 1 year of age and in adults over the age of 65 have been reported from the two U.S. studies (92, 113).”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Ibrahim, E. H., Sherman, G., Ward, S., Fraser, V. J., & Kollef, M. H.
Affiliations
Barnes-Jewish Hospital (US)
Corresponding author
Kollef, Marin H.
Venue
Chest
Publisher
Elsevier BV
Published
2000-07
Volume
118
Issue
1
Pages
146-155
ISSN
0012-3692 (ISSN-L)
OpenAlex
W2131443556
Cited by
1,779
References
49
Citations by year
2026: 9 · 2025: 12 · 2024: 37 · 2023: 28 · 2022: 43 · 2021: 55 · 2020: 68 · 2019: 46 · 2018: 45 · 2017: 50 · 2016: 63 · 2015: 62 · 2014: 84 · 2013: 79 · 2012: 113
FWCI
42.40
Type
journal article
Language
en
Open access
closed
Locations
  • CHEST Journal (publishedVersion)
  • PubMed (publishedVersion)
Funders
U.S. Public Health Service (UR8/CCU715087)
Topics
  • Life Sciences › Immunology and Microbiology › Applied Microbiology and Biotechnology › Antibiotic Use and Resistance
  • Health Sciences › Medicine › Epidemiology › Sepsis Diagnosis and Treatment
  • Health Sciences › Medicine › Critical Care and Intensive Care Medicine › Nosocomial Infections in ICU
Keywords
bloodstream infection, in-hospital mortality, intensive care unit patients, candidiasis, vancomycin-resistant enterococci, oxacillin-resistant Staphylococcus aureus, coagulase-negative staphylococci, Pseudomonas aeruginosa, prior antibiotic use, antimicrobial susceptibility, nosocomial infections, sepsis
MeSH terms
Aged, Anti-Bacterial Agents, Catheterization, Central Venous, Drug Resistance, Microbial, Female, Humans, Intensive Care Units, Male, Middle Aged, Prospective Studies, Respiration, Artificial, Urinary Catheterization, Logistic Models, Survival Analysis, Bacteremia, Critical Illness, Hospital Mortality

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review