Patient Summary and medicines reconciliation: application of the ISO/CEN EN 13606 standard in clinical practice.

The comparison of the patient's current medication list with the medication being ordered when admitted to Hospital, identifying omissions, duplications, dosing errors, and potential interactions, constitutes the core process of medicines reconciliation. Access to the medication the patient is taking at home could be unfeasible as this information is frequently stored in various locations and in diverse proprietary formats. The lack of interoperability between those information systems, namely the Primary Care and the Specialized Electronic Health Records (EHRs), facilitates medication errors and endangers patient safety. Thus, the development of a Patient Summary that includes clinical data from different electronic systems will allow doctors access to relevant information enabling a safer and more efficient assistance. Such a collection of data from heterogeneous and distributed systems has been achieved in this Project through the construction of a federated view based on the ISO/CEN EN13606 Standard for architecture and communication of EHRs.

Implementation of SNOMED CT to the medicines database of a general hospital.

A concept-based terminology that covers all features of healthcare is essential for the development of an Electronic Health Record (EHR). Since a significant percentage of the EHR can be drug related information, we decided to implement the controlled drug terminology provided by SNOMED CT to achieve the potential benefit to promote Patient Safety that a fully functional pharmacy system can offer. One of the expected advantages of our Project is to establish a bridge between reference terminology and the drug knowledge databases. There is also an economic advantage of implementing a "clinical drug product", the one defined by the drug name, its strength and dose form, instead of the manufactured drug product. The Pharmacy economic management of stocks and response to the offers from the pharmaceutical companies is another expected asset of the Project. This Project is intended as well to give support to a more widespread objective of interoperability with the Primary Care systems.