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Staphylococcus aureus bacteremia: the cost-effectiveness of long-term therapy associated with infectious diseases
J Lundberg1, M D Nettleman, M Costigan
1Virginia Commonwealth University, Medical College of Virginia, Richmond 23298, USA.
Objective:
To investigate the cost-effectiveness of long-term therapy for Staphylococcus aureus bacteremia and to determine if an infectious diseases consultation affected the duration of therapy.
Methods:
A decision analysis was performed based on data from the literature. To determine if consultation was related to therapy duration, a retrospective cohort study was performed using tightly matched pairs.
Results:
The excess cost per life saved by long-term antibiotics was $500,000. The excess cost per life-year saved was $18,000. Nine pairs were matched. Patients who received consultation were more likely to receive long-term therapy than controls (median 41 days vs 15 days for controls, P = .04).
Conclusions:
The estimated cost per life-year saved by long-term therapy was similar to other accepted medical interventions. Infectious diseases consultation can encourage prolonged duration of antibiotic therapy for S aureus bacteremia.