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BACKGROUND: Electronic information systems have been proposed as one means to reduce medical errors of commission (doing the wrong thing) and omission (not providing indicated care).

OBJECTIVE: To assess the effects of computer-based cardiac care suggestions.

DESIGN: A randomized, controlled trial targeting primary care physicians and pharmacists.

SUBJECTS: A total of 706 outpatients with heart failure and/or ischemic heart disease.

INTERVENTIONS: Evidence-based cardiac care suggestions, approved by a panel of local cardiologists and general internists, were displayed to physicians and pharmacists as they cared for enrolled patients.

MEASUREMENTS: Adherence with the care suggestions, generic and condition-specific quality of life, acute exacerbations of their cardiac disease, medication compliance, health care costs, satisfaction with care …