MRSA Research Today is a free monthly online journal that collates and summarizes the latest research about MRSA, including details on methicillin-resistant staphylococcus aureus, hospitals, infection, antibiotic resistance, superbugs.

Clinical and economic impact of methicillin resistance in patients with Staphylococcus aureus bacteremia.

Lodise TP, McKinnon PS

Department of Pharmacy Practice, Albany College of Pharmacy, Albany, NY 12208, USA. lodiset@acp.edu

We performed a retrospective cohort study to determine the morbidity, mortality, and hospital costs attributable to methicillin resistance in patients with S. aureus bacteremia (SAB). Episodes of SAB occurring at the Detroit Receiving Hospital in 1999-2001 were evaluated. Controlling for confounding variables, patients with methicillin-resistant Staphylococcus aureus (MRSA) had a 1.5-fold longer length of stay (19.1 versus 14.2 days, P = 0.005) and a 2-fold increased cost of hospitalization (dollar 21577 versus dollar 11668, P = 0.001) compared with methicillin-susceptible S. aureus (MSSA). MRSA patients were at increased risk for delayed treatment, and delayed therapy was an independent predictor of mortality. Efforts should be made to ensure that appropriate therapy is initiated promptly in patients at risk for MRSA. Infection control policies must be strictly enforced to limit the spread of MRSA and potentially minimize excess hospital expenditures incurred with MRSA. With the advent of new treatment options, the impact of MRSA will need to be revisited to determine if these therapies can remedy the increased morbidity associated with MRSA.

Published 20 June 2005 in Diagn Microbiol Infect Dis, 52(2): 113-22.
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