VistA

VISTA's Architecture is an "Onion" with concentric layers of functions. At its core is a single shared database that all applications use.

The Veterans Health Information Systems and Technology Architecture (VISTA) is the system of record for the clinical, administrative and financial operations of the Veterans Health Administration [1] VISTA consists of over 180 clinical, financial, and administrative applications integrated within a single shared lifelong database (figure 1).

The Veterans Health Administration (VHA) is the largest integrated national healthcare delivery system in the United States,[2] providing care for nearly 9 million veterans by 180,000 medical professionals.[3]

VistA received the Computerworld Smithsonian Award for best use of Information Technology in Medicine, and more recently received the highest overall satisfaction rating by physician users of EHRs in the U.S.[4]

In May, 2018, the VA awarded a contract to modernize VistA by implementing a commercial EHR. The projected completion for implementing the commercial EHR was by 2028. By March 2023 - half way through the program - only 5 the total of 150 VA medical centers (3%) had piloted the new system. Numerous reports of safety and reliability had emerged at the commercial EHR sites, and four veterans had suffered premature death. As a result, in April 2023 the House Veterans Affairs Committee for Health IT issued a bill to terminate the commercial EHR contract [5] [6]

  1. ^ "VA Health Care".
  2. ^ "Nation's Largest Healthcare System Pledges Involvement in Healthy Hospital Initiative". US Environmental Protection Agency (Sep 2003).
  3. ^ "Veterans Health Administration – Locations". Archived from the original on December 6, 2011. Retrieved December 3, 2011.
  4. ^ Peckham C, Kane L, Rosensteel S (August 25, 2016). "Medscape EHR Report 2016: Physicians Rate Top EHRs". Medscape. Retrieved August 27, 2017.
  5. ^ "House Bill to Terminate the Cerner contract". April 26, 2023.
  6. ^ "Bipartisan Bill to Halt the Cerner Rollout". April 26, 2023.