Study: Antimicrobial Stewardship, Mass Spec Lower Costs, Length of Stay

Mass spectrometry technology combined with antimicrobial stewardship reduced length of stay and hospital costs for patients with gram-negative bloodstream infections, according to a study in Archives of Pathology & Laboratory Medicine.

The study examined the effect of an antimicrobial stewardship and technology intervention on length of stay and hospital costs at The Methodist Hospital in Houston. The intervention included mass spectrometry, rapid antimicrobial susceptibility testing and near-real-time antimicrobial stewardship practices.


Patients with gram-negative bloodstream infections who did not receive the intervention had an average hospital length of stay of 11.9, while patients who did have the intervention stayed an average of 9.3 days. In addition, the average hospital costs per patient were $45,709 for patients who did not receive the intervention and $26,162 for patients who did.

More Articles on Antimicrobial Stewardship:

8 Recent Findings on Antimicrobial Stewardship
Study: Antibiotic Overuse Common in Long-Term Care Facilities

Report: Progress on Antibiotics for Drug-Resistant Bacteria "Alarmingly Slow"

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