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  • Title: Decrease in expenditures and selected nosocomial infections following implementation of an antimicrobial-prescribing improvement program.
    Author: Frank MO, Batteiger BE, Sorensen SJ, Hartstein AI, Carr JA, McComb JS, Clark CD, Abel SR, Mikuta JM, Jones RB.
    Journal: Clin Perform Qual Health Care; 1997; 5(4):180-8. PubMed ID: 10176026.
    Abstract:
    OBJECTIVE: To evaluate changes in antimicrobial use and expenditures and the rates of selected nosocomial infections due to resistant organisms associated with implementation of an antimicrobial-prescribing improvement program. DESIGN: Before-after trial comparing 1992 (pre-program), 1993 (a transition year), and 1994 (after full implementation of the program). SETTING AND PARTICIPANTS: Academic medical center, all patients and physicians. INTERVENTION: An antimicrobial-prescribing improvement program with prior approval requirement for use of restricted agents. MAIN OUTCOME MEASURES: Antimicrobial use and expenditures, rates of selected nosocomial infection marker events. RESULTS: Between 1992 and 1994, there were substantial decreases in antimicrobial use, from 158,107 to 137,364 defined daily doses, and in expenditures from $2,486,902 ($24.01 per patient day) to $1,701,522 ($18.49 per patient day). After adjusting for changes in purchase prices and census days, we estimated savings attributable to the program of $279,573 in 1993 and $389,814 in 1994. In addition, we found significant decreases between 1992 and 1994 in the rates of enterococcal bacteremia (.34 vs .16 events per 1,000 patient days; P = .016), selected gram-negative bacteremia (.26 vs .11; P = .015), methicillin-resistant Staphylococcus aureus colonization or infection (.66 vs .20; P < .0001), and Stenotrophomonas colonization or infection (.35 vs .17; P = .019). No significant change occurred in rates of nosocomial candidemia or Clostridium difficile toxin-positive diarrhea. Values for 1993 were intermediate between those of 1992 and 1994. CONCLUSION: Implementation of an antimicrobial-prescribing improvement program was associated with substantial savings in antimicrobial use and expenditures and significant decreases in rates of selected nosocomial infections due to resistant organisms.
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