Evidence map›Paper›PMID 40867991›Full record

ArticleAntibiotics (Basel, Switzerland)2025

Ceftazidime-Avibactam in Critically Ill Patients: A Multicenter Observational Study.

Olivieri Silvia, Sara Mazzanti, Gabriele Gelo Signorino, Francesco Pallotta, Andrea Ficola, Benedetta Canovari, Vanessa Di Muzio, Michele Di Prinzio, Elisabetta Cerutti, Abele Donati and 3 more

Abstract read
In one paragraph

Article in Antibiotics (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Challenges and opportunities in the management of severe pneumonia. Key concepts from the Seventh Annual Meeting of Spanish Experts 2025.Revista espanola de quimioterapia : publicacion oficial de la Sociedad Espanola de Quimioterapia · 2026
    Review
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors.

Olivieri SilviaInfectious Diseases, Via Murri, 15, 63023 Fermo, Italy.
Sara MazzantiInfectious Diseases Clinic, Via Conca 71, 60126 Torrette, Italy.
Gabriele Gelo SignorinoInfectious Diseases Clinic, Via Conca 71, 60126 Torrette, Italy.
Francesco PallottaDepartment of Biomedical Sciences and Public Health, Medical School, Polytechnic University of Marche, Via Tronto 10/A, 60020 Torrette, Italy.
Andrea FicolaInfectious Diseases Clinic, Via Conca 71, 60126 Torrette, Italy.
Benedetta CanovariInfectious Diseases Unit, Azienda Ospedaliera Ospedali Riuniti Marche Nord, 61121 Pesaro, Italy.
Vanessa Di MuzioHospital Pharmacy, AUO delle Marche, Via Conca 71, 60126 Torrette, Italy.
Michele Di PrinzioHospital Pharmacy, AUO delle Marche, Via Conca 71, 60126 Torrette, Italy.
Elisabetta CeruttiDepartment of Anesthesia, Transplant and Surgical Intensive Care, AUO delle Marche, Via Conca 71, 60126 Torrette, Italy.
Abele DonatiAnesthaesia and Intensive Care Clinic, AUO delle Marche, Via Conca 71, 60126 Torrette, Italy.
Andrea GiacomettiInfectious Diseases Clinic, Via Conca 71, 60126 Torrette, Italy.
Francesco BarchiesiDepartment of Biomedical Sciences and Public Health, Medical School, Polytechnic University of Marche, Via Tronto 10/A, 60020 Torrette, Italy.
Lucia BresciniInfectious Diseases Clinic, Via Conca 71, 60126 Torrette, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ceftazidime-avibactam (CAZ-AVI) is a second-generation intravenous β-lactam/β-lactamase inhibitor combination. In recent years, substantial evidence has emerged regarding the efficacy and safety of CAZ-AVI. However, data on its use in critically ill patients remain limited. BACKGROUND/

objectivesThis multicenter, retrospective, observational cohort study was conducted across four Intensive Care Units (ICUs) in three hospitals in the Marche region of Italy. The primary objective was to evaluate the 30-day clinical outcomes and identify risk factors associated with 30-day clinical failure-defined as death, microbiological recurrence, or persistence within 30 days after discontinuation of therapy-in critically ill patients treated with CAZ-AVI.

methodsThe study included all adult critically ill patients admitted to the participating ICUs between January 2020 and September 2023 who received CAZ-AVI for at least 72 h for the treatment of a confirmed or suspected Gram-negative bacterial (GNB) infection.

resultsAmong the 161 patients included in the study, CAZ-AVI treatment resulted in a positive clinical outcome (i.e., clinical improvement and 30-day survival) in 58% of cases (n = 93/161), while the overall mortality rate was 24% (n = 38/161). Relapse or persistent infection occurred in a substantial proportion of patients (25%, n = 41/161). Notably, acquired resistance to CAZ-AVI was observed in 26% of these cases, likely due to suboptimal use of the drug in relation to its pharmacokinetic/pharmacodynamic (PK/PD) properties in critically ill patients. Furthermore, treatment failure was more frequent among immunosuppressed individuals, particularly liver transplant recipients.

conclusionsThis study demonstrates that the mortality rate among ICU patients treated with this novel antimicrobial combination is consistent with findings from other studies involving heterogeneous populations. However, the rapid emergence of resistance underscores the need for vigilant surveillance and the implementation of robust antimicrobial stewardship strategies.

Indexed as

ceftazidime/avibactamcritically ill patientsliver transplantation

Identifiers

PMID40867991
PMCPMC12383002

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.