Electronic health records: international, structural and legal perspectives.

The EHR is a database record that incorporates a patient's health care details from conception to death and which can be distributed over a number of sites or aggregated at a particular source. This article describes the function and concept of the EHR by relating it to other medical information technologies, parallel changes in health care delivery, and a holistic health information model. The article compares the progress that Europe, Australia and the United States have made in the journey towards EHR implementation and concludes by highlighting some of the costs, barriers and consequences associated with the transition to a comprehensive EHR system.