1. Outcome of patients with carbapenem-resistant Acinetobacter baumannii infections treated with cefiderocol: A multicenter observational study
- Author
-
Federica Calò, Lorenzo Onorato, Ilaria De Luca, Margherita Macera, Caterina Monari, Emanuele Durante-Mangoni, Alessia Massa, Ivan Gentile, Giovanni Di Caprio, Pasquale Pagliano, Fabio Giuliano Numis, Pasquale Iuliano, Antonio Riccardo Buonomo, Sebastiano Leone, Paolo Maggi, and Nicola Coppola
- Subjects
Cefiderocol ,A. baumannii ,Carbapenem-resistant ,Mortality ,Clinical failure ,Microbiological failure ,Infectious and parasitic diseases ,RC109-216 ,Public aspects of medicine ,RA1-1270 - Abstract
Background: No clear evidence supports the use of cefiderocol as first line treatment in A. baumannii infections. Methods: We conducted an observational retrospective/prospective multicenter study including all patients> 18 years with carbapenem-resistant A. baumannii (CRAB) infections treated with cefiderocol, from June 12021 to October 30 2022. Primary endpoint was 30-day mortality, secondary end-points the clinical and microbiological response at 7 days and at the end of treatment. Furthermore, we compared the clinical and microbiological outcomes among patients who received cefiderocol in monotherapy or in combination. Results: Thirty-eight patients with forty episodes of infection were included [mean age 65 years (SD+16.3), 75% males, 90% with hospital-acquired infections and 70% showing sepsis or septic shock]. The most common infections included unknown source or catheter-related bacteremia (45%) and pneumonia (40%). We observed at 7 days and at the end of therapy a rate of microbiological failure of 20% and 10%, respectively, and of clinical failure of 47.5% and 32.5%, respectively; the 30-day mortality rate was 47.5%. At multivariate analysis clinical failure at 7 days of treatment was the only independent predictor of 30-day mortality. Comparing monotherapy (used in 72.5%) vs. combination therapy (used in 27.5%), no differences were observed in mortality (51.7 vs 45.5%) and clinical (41.4 vs 63.7%) or microbiological failure (24.1 vs 9.1%). Conclusions: The findings of this study reinforce the effectiveness of cefiderocol in CRAB infections, also as monotherapy. However, prospective multicenter studies with larger sample sizes and a control group treated with standard of care are needed to identify the best treatment for CRAB infections.
- Published
- 2023
- Full Text
- View/download PDF