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dc.contributor.authorMcneer, R
dc.contributor.authorBodzin Horn, D
dc.contributor.authorBennett, C
dc.contributor.authorEdworthy, Judy
dc.contributor.authorDudaryk, R
dc.date.accessioned2018-04-14T14:17:09Z
dc.date.issued2018-07
dc.identifier.issn0003-3022
dc.identifier.issn1528-1175
dc.identifier.urihttp://hdl.handle.net/10026.1/11275
dc.description.abstract

<jats:title>Abstract</jats:title><jats:sec><jats:title>Background</jats:title><jats:p>Current standard audible medical alarms are difficult to learn and distinguish from one another. Auditory icons represent a new type of alarm that has been shown to be easier to learn and identify in laboratory settings by lay subjects. In this study, we test the hypothesis that icon alarms are easier to learn and identify than standard alarms by anesthesia providers in a simulated clinical setting.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>Twenty anesthesia providers were assigned to standard or icon groups. Experiments were conducted in a simulated intensive care unit. After a brief group-specific alarm orientation, subjects identified patient-associated alarm sounds during the simulation and logged responses via a tablet computer. Each subject participated in the simulation twice and was exposed to 32 alarm annunciations. Primary outcome measures were response accuracy and response times. Secondary outcomes included assessments of perceived fatigue and task load.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>Overall accuracy rate in the standard alarm group was 43% (mean) and in the icon group was 88% (mean). Subjects in the icon group were 26.1 (odds ratio [98.75% CI, 8.4 to 81.5; P &amp;lt; 0.001]) times more likely to correctly identify an alarm. Response times in the icon group were shorter than in the standard alarm group (12 vs. 15 s, difference 3 s [98.75% CI ,1 to 5; P &amp;lt; 0.001]).</jats:p></jats:sec><jats:sec><jats:title>Conclusions</jats:title><jats:p>Under our simulated conditions, anesthesia providers more correctly and quickly identified icon alarms than standard alarms. Subjects were more likely to perceive higher fatigue and task load when using current standard alarms than icon alarms.</jats:p></jats:sec>

dc.format.extent58-66
dc.format.mediumPrint
dc.languageen
dc.language.isoen
dc.publisherLippincott, Williams & Wilkins
dc.subjectAcoustic Stimulation
dc.subjectClinical Alarms
dc.subjectEquipment Failure
dc.subjectHumans
dc.subjectIntensive Care Units
dc.subjectReaction Time
dc.subjectSurveys and Questionnaires
dc.titleAuditory icon alarms are more accurately and quickly identified than standard melodic alarms in a simulated clinical setting
dc.typejournal-article
dc.typeJournal Article
dc.typeResearch Support, Non-U.S. Gov't
plymouth.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/29698253
plymouth.issue1
plymouth.volume129
plymouth.publication-statusPublished
plymouth.journalAnesthesiology
dc.identifier.doi10.1097/aln.0000000000002234
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Health
plymouth.organisational-group/Plymouth/Research Groups
plymouth.organisational-group/Plymouth/Research Groups/Centre for Brain, Cognition and Behaviour (CBCB)
plymouth.organisational-group/Plymouth/Research Groups/Centre for Brain, Cognition and Behaviour (CBCB)/Behaviour
plymouth.organisational-group/Plymouth/Users by role
dc.publisher.placeUnited States
dcterms.dateAccepted2018-03-23
dc.rights.embargodate2019-7-1
dc.identifier.eissn1528-1175
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.1097/aln.0000000000002234
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2018-07
rioxxterms.typeJournal Article/Review


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