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The preferred antibiotic salvage regimen for persistent methicillin-resistant Staphylococcus aureus bacteremia (MRSAB) is unclear. We sought to evaluate the effectiveness and safety of vancomycin plus ceftaroline for persistent MRSAB. The primary outcome was time to MRSAB clearance post-ceftaroline initiation. Secondary outcomes included microbiological cure, hospital length of stay, 90-day readmission for MRSAB, 90-day all-cause mortality, MRSAB-related mortality, and incidence of antibiotic-associated adverse effects. Single-center, retrospective cohort study between January 1, 2016, and December 31, 2021. State University of New York Upstate University Hospital, a 748-bed tertiary care, academic medical center in Syracuse, NY. Adult patients were included if they had blood cultures positive for MRSA ≥72 h, received vancomycin monotherapy initially, and received vancomycin plus ceftaroline for ≥24 h. Patients were excluded if they received other anti-MRSA antibiotics, were pregnant, or were incarcerated. Of the 178 patients identified, 30 unique patients were evaluated. Patients were medically complex with a median Pitt bacteremia score of 3, 63.3% (19/30) were admitted to the intensive care unit, and 66.7% (20/30) had infective endocarditis. Vancomycin-associated acute kidney injury was observed in 10% (3/30) of patients, which resulted in dose adjustments. No patients experienced ceftaroline-associated neutropenia or Clostridioides difficile infection, but 6.7% (2/30) developed a rash attributed to ceftaroline. Median time to MRSAB clearance post-ceftaroline initiation was 2.6 days. Microbiologic cure occurred in nearly all patients 96.7% (29/30). Median hospital length of stay was 19.5 days, and 6.7% (2/30) of patients had 90-day readmission for MRSAB. 90-day all-cause mortality and MRSAB-related mortality occurred in 26.7% (8/30) and 13.3% (4/30) of patients, respectively. Vancomycin plus ceftaroline may represent an effective and well-tolerated salvage regimen option for persistent MRSAB. © 2022 Pharmacotherapy Publications, Inc.


Wesley D Kufel, Katie A Parsels, Bruce E Blaine, Jeffrey M Steele, Rahul Mahapatra, Kristopher M Paolino, Stephen J Thomas. Vancomycin plus ceftaroline for persistent methicillin-resistant Staphylococcus aureus bacteremia. Pharmacotherapy. 2023 Jan;43(1):15-23

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PMID: 36371648

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