Testing new waters in management of Stenotrophomonas maltophilia blood stream infection in a post cardiac surgery patient

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Abstract

Hospital acquired infections are the most common non-cardiac complications after cardiac surgery. Organisms commonly found in this cohort of patients include Klebsiella spp, Escherichia coli, Pseudomonas spp, Staphylococcus aureus, Coagulase negative Staphylococcus and Enterococcus spp etc. We hereby present a case of post cardiac surgery patient presenting with Stenotrophomonas maltophilia bloodstream infection. Combination of ceftazidime-avibactam (CZA) and aztreonam(AT) was used as inactivity was exhibited to primary panel of drugs. Broth disc elution testing was done to exhibit synergy between CZA and AT. This case highlights the growing need for active interaction between the treating physician and the microbiologist.

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