Defining a Health Information Exchange
The United States is facing the largest shortage of healthcare practitioners in our country’s history which is compounded by an ever increasing geriatric population. In 2005 there existed one geriatrician for every 5,000 US residents over 65 and only nine of the 145 medical schools trained geriatricians. By 2020 the industry is estimated to be short 200,000 physicians and over a million nurses. Never, in the history of US healthcare, has so much been demanded with so few personnel. Because of this shortage combined with the geriatric population increase, the medical community has to find a way to provide timely, accurate information to those who need it in a uniform fashion. Imagine if flight controllers spoke the native language of their country instead of the current international flight language, English. This example captures the urgency and critical nature of our need for standardized communication in healthcare. A healthy information exchange can help improve safety, reduce length of hospital stays, cut down on medication errors, reduce redundancies in lab testing or procedures and make the health system faster, leaner and more productive. The aging US population along with those impacted by chronic disease like diabetes, cardiovascular disease and asthma will need to see more specialists who will have to find a way to communicate with primary care providers effectively and efficiently.
This efficiency can only be attained by standardizing the manner in which the communication takes place. Healthbridge, a Cincinnati based HIE and one of the largest community based networks, was able to reduce their potential disease outbreaks from 5 to 8 days down to 48 hours with a regional health information exchange. Regarding standardization, one author noted, “Interoperability without standards is like language without grammar. In both cases communication can be achieved but the process is cumbersome and often ineffective.”
United States retailers transitioned over twenty years ago in order to automate inventory, sales, accounting controls which all improve efficiency and effectiveness. While uncomfortable to think of patients as inventory, perhaps this has been part of the reason for the lack of transition in the primary care setting to automation of patient records and data. Imagine a Mom & Pop hardware store on any square in mid America packed with inventory on shelves, ordering duplicate widgets based on lack of information regarding current inventory. Visualize any Home Depot or Lowes and you get a glimpse of how automation has changed the retail sector in terms of scalability and efficiency. Perhaps the “art of medicine” is a barrier to more productive, efficient and smarter medicine. Standards in information exchange have existed since 1989, but recent interfaces have evolved more rapidly thanks to increases in standardization of regional and state health information exchanges.
History of Health Information Exchanges
Major urban centers in Canada and Australia were the first to successfully implement HIE’s. The success of these early networks was linked to an integration with primary care EHR systems already in place. Health Level 7 (HL7) represents the first health language standardization system in the United States, beginning with a meeting at the University of Pennsylvania in 1987. HL7 has been successful in replacing antiquated interactions like faxing, mail and direct provider communication, which often represent duplication and inefficiency. Process interoperability increases human understanding across networks health systems to integrate and communicate. Standardization will ultimately impact how effective that communication functions in the same way that grammar standards foster better communication. The United States National Health Information Network (NHIN) sets the standards that foster this delivery of communication between health networks. HL7 is now on it’s third version which was published in 2004. The goals of HL7 are to increase interoperability, develop coherent standards, educate the industry on standardization and collaborate with other sanctioning bodies like ANSI and ISO who are also concerned with process improvement.