| Literature DB >> 31740559 |
Pablo A Fraile-Ribot1, Laura Zamorano2, Rocío Orellana1, Ester Del Barrio-Tofiño1, Irina Sánchez-Diener1, Sara Cortes-Lara1, Carla López-Causapé1, Gabriel Cabot1, Germán Bou3, Luis Martínez-Martínez4, Antonio Oliver2.
Abstract
Imipenem and imipenem-relebactam MICs were determined for 1,445 Pseudomonas aeruginosa clinical isolates and a large panel of isogenic mutants showing the most relevant mutation-driven β-lactam resistance mechanisms. Imipenem-relebactam showed the highest susceptibility rate (97.3%), followed by colistin and ceftolozane-tazobactam (both 94.6%). Imipenem-relebactam MICs remained ≤2 μg/ml in all 16 isogenic PAO1 mutants and in 8 pairs of extensively drug-resistant clinical strains that had developed resistance to ceftolozane-tazobactam and ceftazidime-avibactam due to mutations in OXA-10 or AmpC.Entities:
Keywords: Pseudomonas aeruginosazzm321990; antibiotic resistance; extensively drug resistant; imipenem-relebactam; multidrug resistance; whole-genome sequencing; β-lactam resistance mechanisms
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Year: 2020 PMID: 31740559 PMCID: PMC6985745 DOI: 10.1128/AAC.02165-19
Source DB: PubMed Journal: Antimicrob Agents Chemother ISSN: 0066-4804 Impact factor: 5.191