Novelty Detection for Identifying Deterioration in Emergency Department Patients

This paper presents the preliminary results of an observational study into the use of novelty detection techniques for detecting physiological deterioration in vital-sign data acquired from Emergency Department (ED) patients. Such patients are typically in an acute condition with a significant chanc...

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Main Authors: Clifton, D, Wong, D, Fleming, S, Wilson, S, Way, R, Pullinger, R, Tarassenko, L
Format: Journal article
Language:English
Published: 2011
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author Clifton, D
Wong, D
Fleming, S
Wilson, S
Way, R
Pullinger, R
Tarassenko, L
author_facet Clifton, D
Wong, D
Fleming, S
Wilson, S
Way, R
Pullinger, R
Tarassenko, L
author_sort Clifton, D
collection OXFORD
description This paper presents the preliminary results of an observational study into the use of novelty detection techniques for detecting physiological deterioration in vital-sign data acquired from Emergency Department (ED) patients. Such patients are typically in an acute condition with a significant chance of deteriorating during their stay in hospital. Existing methods for monitoring ED patients involve manual "early warning score" (EWS) systems based on heuristics in which clinicians calculate a score based on the patient vital signs. We investigate automated novelty detection methods to perform "intelligent" monitoring of the patient between manual observations, to provide early warning of patient deterioration. Analysis of the performance of classification systems for on-line novelty detection is not straightforward. We discuss the obstacles that must be considered when determining the efficacy of on-line classification systems, and propose metrics for evaluating such systems. © 2011 Springer-Verlag.
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spelling oxford-uuid:2654e7d4-b834-492f-adcb-3ae6c04366942022-03-26T12:00:21ZNovelty Detection for Identifying Deterioration in Emergency Department PatientsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:2654e7d4-b834-492f-adcb-3ae6c0436694EnglishSymplectic Elements at Oxford2011Clifton, DWong, DFleming, SWilson, SWay, RPullinger, RTarassenko, LThis paper presents the preliminary results of an observational study into the use of novelty detection techniques for detecting physiological deterioration in vital-sign data acquired from Emergency Department (ED) patients. Such patients are typically in an acute condition with a significant chance of deteriorating during their stay in hospital. Existing methods for monitoring ED patients involve manual "early warning score" (EWS) systems based on heuristics in which clinicians calculate a score based on the patient vital signs. We investigate automated novelty detection methods to perform "intelligent" monitoring of the patient between manual observations, to provide early warning of patient deterioration. Analysis of the performance of classification systems for on-line novelty detection is not straightforward. We discuss the obstacles that must be considered when determining the efficacy of on-line classification systems, and propose metrics for evaluating such systems. © 2011 Springer-Verlag.
spellingShingle Clifton, D
Wong, D
Fleming, S
Wilson, S
Way, R
Pullinger, R
Tarassenko, L
Novelty Detection for Identifying Deterioration in Emergency Department Patients
title Novelty Detection for Identifying Deterioration in Emergency Department Patients
title_full Novelty Detection for Identifying Deterioration in Emergency Department Patients
title_fullStr Novelty Detection for Identifying Deterioration in Emergency Department Patients
title_full_unstemmed Novelty Detection for Identifying Deterioration in Emergency Department Patients
title_short Novelty Detection for Identifying Deterioration in Emergency Department Patients
title_sort novelty detection for identifying deterioration in emergency department patients
work_keys_str_mv AT cliftond noveltydetectionforidentifyingdeteriorationinemergencydepartmentpatients
AT wongd noveltydetectionforidentifyingdeteriorationinemergencydepartmentpatients
AT flemings noveltydetectionforidentifyingdeteriorationinemergencydepartmentpatients
AT wilsons noveltydetectionforidentifyingdeteriorationinemergencydepartmentpatients
AT wayr noveltydetectionforidentifyingdeteriorationinemergencydepartmentpatients
AT pullingerr noveltydetectionforidentifyingdeteriorationinemergencydepartmentpatients
AT tarassenkol noveltydetectionforidentifyingdeteriorationinemergencydepartmentpatients