AMIA ... Annual Symposium proceedings / AMIA Symposium. AMIA Symposium
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AMIA Annu Symp Proc · Jan 2006
A novel method for the efficient retrieval of similar multiparameter physiologic time series using wavelet-based symbolic representations.
An important challenge in data mining is in identifying "similar" temporal patterns that may illuminate hidden information in a database of time series. We are actively engaged in the development of a temporal database of several thousand ICU patient records that contains time-varying physiologic measurements recorded over each patient's ICU stay. The discovery of multiparameter temporal patterns that are predictive of physiologic instability may aid clinicians in optimizing care for critically-ill patients. ⋯ The results of this study demonstrate that similarities between different patient time series may have meaningful physiologic interpretations in the detection of impending hemodynamic deterioration. Thus, our framework may be of potential use in clinical decision-support systems. As a generalized time series similarity metric, the algorithms that are described have applications in several other domains as well.
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AMIA Annu Symp Proc · Jan 2006
Comparative StudyThe effects of Computerized Provider Order Entry on medication turn-around time: a time-to-first dose study at the Providence Portland Medical Center.
As the Providence Health System is phasing in its Computerized Provider Order Entry (CPOE) system at the Providence Portland Medical Center, we conducted a study to demonstrate the effects of CPOE on medication turn-around time. Retrospectively, we tracked and compared medication orders that were placed via the existing paper-based system and the CPOE system. The results of this study coincide with, and confirm, previous research that has been performed at large academic medical centers.
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The complex work processes and communication patterns exhibited in Emergency Medicine may be effectively managed through the use of information technology. These tools must be evaluated within the work environment to understand their effects on work flow, information flow, and patient safety. In this study the efficiency of the Emergency Department triage process was evaluated pre- and post- implementation of a computerized triage system. Time-and-motion analyses revealed no changes in triage documentation time; however, the duration of interruptions and the number of tasks decreased significantly.
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AMIA Annu Symp Proc · Jan 2006
Clinicians recognize value of patient review of their electronic health record data.
Increasing patient demands for convenient access to their own health care information has led to the development of "patient portals" that allow limited patient access to ambulatory electronic health records (EHR). Little is known about clinicians attitudes towards this new model of health care. In our study, we collected baseline information about primary care providers (PCP) usage of a secure, web-based patient portal linked to the ambulatory EHR. We also assessed providers initial perceptions of these technologies as facilitators of patient-provider communications and the potential for these tools to improve quality of outpatient care.
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Transportation officers at mass casualty incidents are faced with the daunting task of tracking large amounts of patients as they leave the disaster scene. Patients often leave under their own power without notifying any authorities, presenting a problem for personnel attempting to account for every patient they have treated. This paper describes a system of tracking patients at a disaster scene or en route to hospitals using electronic triage tags registered with an external database.