Features  |   February 2016
Data Warehouses: Managing and Accessing EHR Data
Author Affiliations
  • Huong T. Le, M.D.
    Committee on Electronic Media and Information Technology
  • Mark Banoub, M.D., CPE
    Committee on Electronic Media and Information Technology
Article Information
Technology / Equipment / Monitoring / Features
Features   |   February 2016
Data Warehouses: Managing and Accessing EHR Data
ASA Monitor 02 2016, Vol.80, 26-28.
ASA Monitor 02 2016, Vol.80, 26-28.
In the era of electronic health records and the transition toward pay for performance, health care organizations have begun leveraging analytics to identify opportunities to improve patient outcomes, reduce costs and increase efficiency. Vast amounts of hospital system data are available for pattern recognition and future trend prediction using complex analytics. Patient information once recorded and stored physically in paper charts is now stored in electronic databases. However, extracting and applying the data proved more difficult than we would have hoped. Comparable to the complexities of medicine, not all electronic databases are created equal. Most physicians are familiar with electronic health record (EHR) applications that use OLTP (online transaction processing) electronic databases. OLTPs organize data for storage and retrieval and offer users reading and writing privileges typically through a single software application. While this allows real-time data access for patient care, OLTPs are poorly suited for advanced health care quantitative and qualitative analytics because the data changes continuously, making it difficult to track trends over time.1,4 
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