Monitoring Ceftazidime-Avibactam (CAZ-AVI) and Aztreonam (ATM) Concentrations in the Treatment of a Bloodstream Infection Caused by a Multidrug-Resistant Enterobacter sp. Carrying both KPC-4 and NDM-1 Carbapenemases.

Monitoring Ceftazidime-Avibactam (CAZ-AVI) and Aztreonam (ATM) Concentrations in the Treatment of a Bloodstream Infection Caused by a Multidrug-Resistant Enterobacter sp. Carrying both KPC-4 and NDM-1 Carbapenemases.

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Authors: Yasmin M, Fouts DE, Jacobs MR, Haydar H, Marshall SH, White R, D'Souza R, Lodise TP, Rhoads DD, Hujer AM, Rojas LJ, Hoyen C, Perez F, Edwards A, Bonomo RA
Title: Monitoring Ceftazidime-Avibactam (CAZ-AVI) and Aztreonam (ATM) Concentrations in the Treatment of a Bloodstream Infection Caused by a Multidrug-Resistant Enterobacter sp. Carrying both KPC-4 and NDM-1 Carbapenemases.
Citation: Clinical infectious diseases : an official publication of the Infectious Diseases Society of America. 2019-12-05; .: .
Abstract:
We report a sentinel occurrence of an infection with an Enterobacter sp. isolate producing KPC-4 and NDM-1 in the US. Recognition of the molecular basis of carbapenem resistance allowed for successful treatment by combining CAZ-AVI and ATM. Antimicrobial synergy testing and therapeutic drug monitoring allowed for assessment of treatment adequacy.
PMID: 31802119