AMIA ... Annual Symposium proceedings / AMIA Symposium. AMIA Symposium
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AMIA Annu Symp Proc · Jan 2012
The orderly and effective visit: impact of the electronic health record on modes of cognitive control.
The clinical Joint Cognitive System (JCS) includes the clinicians, electronic health record (EHR), and other infrastructure that maintain control in the system in the service of accomplishing clinical goals. The purpose of this study is to examine the relationship between levels of control using the COCOM model (scrambled, opportunistic, tactical, and strategic) and patterns of EHR use. Forty-five primary care visits were observed and audio-recorded. ⋯ Screen changes were recorded and time stamped (as either searching or entering). Levels of control were significantly related to preparation intensity (F (2,23) = 6.62; p=0.01), the number of screen changes involved in both searching (F (2,30) = 6.54; p=0.004), and entering information (F (2,22) = 9.26; p=0.001). Combined with the qualitative data, this pattern of EHR usage indicates that the system as designed may not provide effective cognitive support.
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AMIA Annu Symp Proc · Jan 2012
Harnessing a health information exchange to identify surgical device adverse events for urogynecologic mesh.
We sought to create an automated means to conduct surveillance of complications related to urogynecologic mesh because current postmarket surveillance fails to detect the true incidence of device-related adverse events. Using health information exchange data, we developed a search algorithm to identify urogynecologic surgeries with mesh implantation and associated inpatient adverse events. We validated the algorithm search results against those obtained from a manual case review of mesh surgical records. ⋯ Complications were identified in 380 of the 2874 mesh cases. This is the first known report of an automated process for identifying urogynecologic surgical mesh implantation cases from a health information exchange. Automated surveillance of health information exchange data may contribute to tracking of device-related adverse events.
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AMIA Annu Symp Proc · Jan 2012
Emergency department physician internet use during clinical encounters.
This study explored the Internet log files from emergency department workstations to determine search patterns, compared them to discharge diagnoses, and the emergency medicine curriculum as a way to quantify physician search behaviors. ⋯ We have shown a need for a readily accessible drug knowledge base within the EMR for decision support as well as easier access to first and second tier EBM evidence.
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AMIA Annu Symp Proc · Jan 2012
A usability problem: conveying health risks to consumers on the Internet.
Effectively designing risk information for the public is challenging and selecting the appropriate medium to deliver disease risk information is crucial. In a usability evaluation of a colon cancer risk website, we evaluated the public's understanding and interpretation of graphical displays of risk information (2 bar graphs). Results from this study suggest that many people do not understand risk and often misinterpret graphical displays of risk and associated terminology. This work shows the importance of not only including representational analysis within user-centered design of consumer health websites, but also evaluating the health and numerical literacy levels of these websites as an aspect of usability testing.
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We present and test the intuition that letters to the editor in journals carry early signals of adverse drug events (ADEs). Surprisingly these letters have not yet been exploited for automatic ADE detection unlike for example, clinical records and PubMed. Part of the challenge is that it is not easy to access the full-text of letters (for the most part these do not appear in PubMed). ⋯ We also involve natural language processing for feature definitions. Overall we achieve high accuracy in our experiments and our method also works well on a second new test set. Our results encourage us to further pursue this line of research.