Background: Although Clinical Decision Support System (CDSS) has a potential to improve quality of health care, reports about CDSS are rare from Japan.
Purpose: To report CDSS implementation in Electronic Medical Record System (EMRS) and its utilization and accuracy.
System Overview: Patient-specific notifications were generated automatically from clinical information stored in and out of EMRS. CDSS provided patient-specific recommended actions for clinicians at the time of decision-making, and supported to take recommended action or record reasons for not following the recommendation into EMRS.
Result: For 9 months from December 2011, 1710 notification were generated in 7 fields, and 1,628 of them were delivered. Its utilization rate is 89.2%, and 94.8% of them supported decision making correctly.
Conclusion: The CDSS with high execution rate was implemented in the existing EMRS. Further studies are needed in order to evaluate whether this CDSS is related to improve quality of health care and to change user's behavior.
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