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PEDIATRICS Vol. 111 No. 4 April 2003, pp. 722-729
Prioritizing Strategies for Preventing Medication Errors and Adverse Drug
Events in Pediatric Inpatients
Elizabeth B. Fortescue, MD*, Rainu
Kaushal, MD, MPH*,,
Christopher P. Landrigan, MD, MPH*, Kathryn J.
McKenna, MS, RN*, Margaret D. Clapp, RPh,
Frank Federico, RPh||, Donald A. Goldmann, MD*
and David W. Bates, MD, MSc
* Departments of Medicine, Quality Improvement, and Risk
Management, Childrens Hospital, Boston, Massachusetts Division of General
Internal Medicine, Brigham and Womens Hospital, Partners HealthCare Systems,
and Harvard Medical School, Boston, Massachusetts Department of Pharmacy,
Massachusetts General Hospital, Boston, Massachusetts || Risk Management Foundation, Cambridge, Massachusetts
Objectives. Medication errors in pediatric inpatients occurat similar rates as in adults but have 3 times the potentialto
cause harm. Error prevention strategies in this setting remain
largely untested. The objective of this study was to classifythe
major types of medication errors in pediatric inpatientsand to
determine which strategies might most effectively preventthem.
Methods. A prospective cohort study was conducted of 1020 patientswho were admitted to 2 academic medical centers during a 6-week
period in April and May 1999. Medication errors were characterizedby
subtype. Physician raters evaluated error prevention strategiesand
identified those that might be most effective in preventingerrors.
Results. Of 10 778 medication orders reviewed, 616 containederrors. Of these, 120 (19.5%) were classified as potentially
harmful, including 115 potential adverse drug events (18.7%)and 5
preventable adverse drug events (0.8%). Most errors occurredat the
ordering stage (74%) and involved errors in dosing (28%),route
(18%), or frequency (9%). Three interventions might haveprevented
most potentially harmful errors: 1) computerized physicianorder
entry with clinical decision support systems (76%); 2)ward-based
clinical pharmacists (81%); and 3) improved communicationamong
physicians, nurses, and pharmacists (86%). Interraterreliability of
error prevention strategy assignment was good(agreement: 0.92;
: 0.82).
Conclusions. Of the assessed interventions, computerized physicianorder entry with clinical decision support systems; ward-based
clinical pharmacists; and improved communication among physicians,
nurses, and pharmacists had the greatest potential to reduce
medication errors in pediatric inpatients. Development, implementation,and assessment of such interventions in the pediatric inpatient
setting are needed.
Abbreviations: ADE, adverse drug event ICU, intensive care
unit CPOE, computerized physician order entry MAR, medication administration
record CDSS, clinical decision support system
Received for publication Mar 21, 2002; accepted Sep 27, 2002.
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