Publications by authors named "Davide Ghibaudo"

Mycobacterium abscessus complex (MABSC) subspecies differentiation improves patients' therapy and outcome. Fourier-Transform-Infrared Spectroscopy (FT-IRS) was applied for subspecies discrimination of 15 strains on different media: Löwenstein-Jensen showed the best resolution power; Linear Discriminant Analysis model differentiated M. abscessus susbsp.

View Article and Find Full Text PDF

Rapid detection of extended-spectrum-β-lactamase (ESBL) is of paramount importance to accelerate clinical decision-making, optimize antibiotic treatment, and implement adequate infection control measures. This study was aimed at assessing the impact of direct detection of CTX-M ESBL-producers on antimicrobial management of bloodstream infections over a 2-year period. This study included all bloodstream infection (BSI) events that were serially processed through a rapid workflow with communication to the clinicians of direct detection of CTX-M ESBL-producers and conventional culture-based workflow.

View Article and Find Full Text PDF

. Rapid identification (ID) and antimicrobial susceptibility testing (AST) of bloodstream infections (BSI) pathogens are fundamental to switch from empirical to targeted antibiotic therapy improving patients outcome and reducing antimicrobial resistance spreading..

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to assess how common ceftazidime/avibactam (CZA) resistance is among specific bacteria (carbapenemase-producing Enterobacterales) found in blood cultures, while also evaluating methods for identifying KPC variants linked to this resistance.
  • Researchers tested non-duplicate CPE strains from blood cultures collected between 2018-2020 for their ability to withstand antibiotics and used molecular testing to classify the carbapenemase producers, specifically looking at those with high CZA MIC levels.
  • Results showed a notable CZA resistance rate of 13.7%, revealing challenges in detecting certain KPC variants using the evaluated phenotypic methods, suggesting that a combination of
View Article and Find Full Text PDF

This study aims at presenting a reliable fast-track diagnostics for the detection of CTX-M ESBL- (CTX-M-p) and carbapenemase-producers (CA-p) directly from blood cultures (BCs) of patients with Enterobacterales (EB) bloodstream infections (BSIs) admitted in emergency and internal medicine departments and its contribution in estimation of in vitro antibiotic susceptibility. A fast-track workflow including MALDI-TOF species identification and two lateral flow immunochromatographic assays for the detection of CTX-M-p and CA-p directly from BCs was performed in parallel with conventional routine, and results were compared. A total of 236 BCs of patients suffering from EB BSI were included.

View Article and Find Full Text PDF

We evaluate the performance of BD Phoenix (BD Diagnostic; Hunt Valley, MD) and MiscroScan WalkAway (Beckman Coulter Inc; Carlsbad, CA) systems versus reference agar dilution method for fosfomycin susceptibility determination in 200 Staphylococcus aureus clinical isolates. Both methods exhibit ≤89.0% of categorica agreement and ≥63.

View Article and Find Full Text PDF