Researchers from the University of California at Davis have shown that electronic health records can be used effectively to predict the onset of sepsis, a leading cause of death and hospitalization in the United States.
In a study using routine information of hospitalized patients--such as blood pressure, respiratory rate, temperature and white blood cell count--researchers analyzed data from the EHRs of 741 patients with sepsis and found that vital signs combined with serum white blood cell count can accurately predict sepsis, which is associated with increased blood levels of lactate. In addition, they found that lactate level, blood pressure and respiratory rate could determine a patients risk of death from sepsis.
Sepsis occurs in more than 750,000 U.S. patients annually, killing nearly a third of all people who develop the immune system response to infection that can damage organs and cause permanent physical and mental disabilities. However, sepsis-related deaths and serious consequences are preventable for as many as 30 percent of patients.
Rather than using a gut-level approach in an uncertain situation, physicians can instead use a decision-making tool that 'learns' from patient histories to identify health status and probable outcomes," said Ilias Tagkopoulos, assistant professor of computer science at UC Davis and senior author of the study, in a written statement. "Another benefit of the sepsis predictor is that it is based on routine measures, so it can be used anywhere--on the battlefield or in a rural hospital in a third-world country.
Currently, UC-Davis researchers are working on a specific sepsis-risk algorithm that can be automatically calculated in the EHR. Their study, funded by the Center for Information Technology Research in the Interest of Society and the National Center for Advancing Translational Sciences of the National Institutes of Health, appears in the current issue of the Journal of the American Medical Informatics Association.
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