why choose us

300×250 Ad Slot

Research Article: In vitro Synergistic Activity of Ceftazidime-Avibactam in Combination with Aztreonam or Meropenem Against Clinical Enterobacterales Producing blaKPC or blaNDM

Date Published: 2023-05-23

Abstract:
Carbapenem-resistant Enterobacterales (CRE), owing to its multi-drug resistance and worldwide dissemination characteristics associated with high morbidity and mortality, is an urgent public health concern., A longitudinal large-scale CRE network in China showed that meropenem minimal inhibitory concentration (MIC) for .% of KPC-producing CREs and .% NDM-producing CREs were ? mg/L. The antibiotics used for CRE treatment are limited, and only left salvage antibiotics such as tigecycline, polymyxin, and ceftazidime-avibactam (approved in China in ). Polymyxin shows nephrotoxicity and neurotoxicity, and tigecycline has low free serum concentrations. Ceftazidime-avibactam shows activity against ESBL-, AmpC-, and serine-carbapenemase-producing Enterobacterales strains, including KPC and OXA- carbapenemases but not metallo-?-lactamases (MBLs). Moreover, tigecycline-, polymyxin-, and ceftazidime-avibactam-resistant strains have been isolated during clinical treatment. Previously reported polymyxin or ceftazidime-avibactam heteroresistance might be an important reason for treatment failure and repeated infections.

Introduction:
Carbapenem-resistant Enterobacterales (CRE), owing to its multi-drug resistance and worldwide dissemination characteristics associated with high morbidity and mortality, is an urgent public health concern. , A longitudinal large-scale CRE network in China showed that meropenem minimal inhibitory concentration (MIC) for .% of KPC-producing CREs and .% NDM-producing CREs were ? mg/L. The antibiotics used for CRE treatment are limited, and only left salvage antibiotics such as tigecycline, polymyxin, and…

Read more

300×250 Ad Slot