A Computer-Assisted Management Program for Antibiotics and Other Antiinfective Agents
R. Scott Evans, Ph.D., Stanley L. Pestotnik, M.S., R.Ph., David C. Classen, M.D., M.S., Terry P. Clemmer, M.D., Lindell K. Weaver, M.D., James F. Orme, M.D., James F. Lloyd, B.S., and John P. Burke, M.D.
Background and Methods Optimal decisions about the use of antibioticsand other antiinfective agents in critically ill patients requireaccess to a large amount of complex information. We have developeda computerized decision-support program linked to computer-basedpatient records that can assist physicians in the use of antiinfectiveagents and improve the quality of care. This program presentsepidemiologic information, along with detailed recommendationsand warnings. The program recommends antiinfective regimensand courses of therapy for particular patients and providesimmediate feedback. We prospectively studied the use of thecomputerized antiinfectives-management program for one yearin a 12-bed intensive care unit.
Results During the intervention period, all 545 patients admittedwere cared for with the aid of the antiinfectives-managementprogram. Measures of processes and outcomes were compared withthose for the 1136 patients admitted to the same unit duringthe two years before the intervention period. The use of theprogram led to significant reductions in orders for drugs towhich the patients had reported allergies (35, vs. 146 duringthe preintervention period; P<0.01), excess drug dosages(87 vs. 405, P<0.01), and antibiotic-susceptibility mismatches(12 vs. 206, P<0.01). There were also marked reductions inthe mean number of days of excessive drug dosage (2.7 vs. 5.9,P<0.002) and in adverse events caused by antiinfective agents(4 vs. 28, P<0.02). In analyses of patients who receivedantiinfective agents, those treated during the interventionperiod who always received the regimens recommended by the computerprogram (n = 203) had significant reductions, as compared withthose who did not always receive the recommended regimens (n= 195) and those in the preintervention cohort (n = 766), inthe cost of antiinfective agents (adjusted mean, $102 vs. $427and $340, respectively; P<0.001), in total hospital costs(adjusted mean, $26,315 vs. $44,865 and $35,283; P<0.001),and in the length of the hospital stay (adjusted mean, 10.0vs. 16.7 and 12.9 days; P<0.001).
Conclusions A computerized antiinfectives-management programcan improve the quality of patient care and reduce costs.
Source Information
From the Departments of Clinical Epidemiology (R.S.E., S.L.P., D.C.C., J.F.L., J.P.B.), Critical Care (T.P.C., L.K.W., J.F.O.), and Medical Informatics (R.S.E.), LDS Hospital, Salt Lake City.
Address reprint requests to Dr. Evans at the Department of Clinical Epidemiology, LDS Hospital, 8th Ave. and C St., Salt Lake City, UT 84143.
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