Antibiotics (Basel, Switzerland) · 2025
Optimizing Antibiotic Treatment Duration for ESBL-Producing Enterobacteriaceae Bacteremia in ICU: A Multicentric Retrospective Cohort Study.
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Le Berre Camille, Degrendel Maxime, Houard Marion, Benetazzo Lucie, Vachée Anne, Georges Hugues, Wallet Frederic, Patoz Pierre, Bortolotti Perrine, Nseir Saad, Delannoy Pierre-Yves, Meybeck Agnès
Аннотация
BACKGROUND: The optimal duration of antibiotic treatment for extended-spectrum β-lactamase-producing Enterobacteriaceae (ESBL-E) bloodstream infections (BSI) in intensive care unit (ICU) is not established. We aim to evaluate the frequency and clinical outcomesof a short appropriate antibiotic treatment (≤7 days) (SAT) for ESBL-E BSI acquired in the ICU. We specifically assessed the rate of ESBL-E BSI relapse, and in-ICU mortality.
METHOD: All patients who acquired ESBL-E BSI in three ICU in Northern France between January 2011 and June 2022 were included in a multicenter retrospective cohort study. The factors associated with prescribing short (SAT, ≤7 days) versus long (LAT, >7 days) antibiotic treatment were analyzed. To evaluate the impact of SAT on mortality in the ICU, an estimation was applied using a Cox model with a time-dependent co-variable adjusted by inverse weighting of the propensity score.
RESULTS: In total, 379 patients were included. The proportion of patients receiving a SAT was 40% in the entire cohort and 25% in survivors beyond 7 days. In bivariate analysis, the factors associated with prescribing a SAT in survivors were shorter pre-bacteremia ICU stay (p = 0.005), lower proportion of chronic renal failure history (p = 0.034), cancer (p = 0.042), or transplantation (p = 0.025), less frequent exposure to carbapenem within 3 months (p = 0.015). There was a higher proportion of septic shock (p = 0.017) or bacteremia secondary to pneumonia (p = 0.003) in the group of survivors receiving a LAT. After adjustment, no difference in survival was found between the two groups (HR: 1.65, 95%CI: 0.91-3.00, p = 0.10).
CONCLUSION: In our cohort, one quarter of patients with ESBL-E bacteremia acquired in the ICU surviving beyond 7 days were treated with a SAT. SAT did not appear to affect survival. Patients who could benefit from a SAT need to be better identified.
METHOD: All patients who acquired ESBL-E BSI in three ICU in Northern France between January 2011 and June 2022 were included in a multicenter retrospective cohort study. The factors associated with prescribing short (SAT, ≤7 days) versus long (LAT, >7 days) antibiotic treatment were analyzed. To evaluate the impact of SAT on mortality in the ICU, an estimation was applied using a Cox model with a time-dependent co-variable adjusted by inverse weighting of the propensity score.
RESULTS: In total, 379 patients were included. The proportion of patients receiving a SAT was 40% in the entire cohort and 25% in survivors beyond 7 days. In bivariate analysis, the factors associated with prescribing a SAT in survivors were shorter pre-bacteremia ICU stay (p = 0.005), lower proportion of chronic renal failure history (p = 0.034), cancer (p = 0.042), or transplantation (p = 0.025), less frequent exposure to carbapenem within 3 months (p = 0.015). There was a higher proportion of septic shock (p = 0.017) or bacteremia secondary to pneumonia (p = 0.003) in the group of survivors receiving a LAT. After adjustment, no difference in survival was found between the two groups (HR: 1.65, 95%CI: 0.91-3.00, p = 0.10).
CONCLUSION: In our cohort, one quarter of patients with ESBL-E bacteremia acquired in the ICU surviving beyond 7 days were treated with a SAT. SAT did not appear to affect survival. Patients who could benefit from a SAT need to be better identified.