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Published in: BMC Health Services Research 1/2018

Open Access 01-12-2018 | Research article

Reducing time-to-unit among patients referred to an outpatient stroke assessment unit with a novel triage process: a prospective cohort study

Authors: Maximilian B. Bibok, Kristine Votova, Robert F. Balshaw, Mary L. Lesperance, Nicole S. Croteau, Anurag Trivedi, Jaclyn Morrison, Colin Sedgwick, Andrew M. Penn

Published in: BMC Health Services Research | Issue 1/2018

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Abstract

Background

To evaluate the performance of a novel triage system for Transient Ischemic Attack (TIA) units built upon an existent clinical prediction rule (CPR) to reduce time to unit arrival, relative to the time of symptom onset, for true TIA and minor stroke patients. Differentiating between true and false TIA/minor stroke cases (mimics) is necessary for effective triage as medical intervention for true TIA/minor stroke is time-sensitive and TIA unit spots are a finite resource.

Methods

Prospective cohort study design utilizing patient referral data and TIA unit arrival times from a regional fast-track TIA unit on Vancouver Island, Canada, accepting referrals from emergency departments (ED) and general practice (GP). Historical referral cohort (N = 2942) from May 2013–Oct 2014 was triaged using the ABCD2 score; prospective referral cohort (N = 2929) from Nov 2014–Apr 2016 was triaged using the novel system. A retrospective survival curve analysis, censored at 28 days to unit arrival, was used to compare days to unit arrival from event date between cohort patients matched by low (0–3), moderate (4–5) and high (6–7) ABCD2 scores.

Results

Survival curve analysis indicated that using the novel triage system, prospectively referred TIA/minor stroke patients with low and moderate ABCD2 scores arrived at the unit 2 and 1 day earlier than matched historical patients, respectively.

Conclusions

The novel triage process is associated with a reduction in time to unit arrival from symptom onset for referred true TIA/minor stroke patients with low and moderate ABCD2 scores.
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Literature
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go back to reference National Institute for Health and Care Excellence (NICE). Stroke and transient ischaemic attack in over 16s: diagnosis and initial management. NICE guidelines [CG68]. London: National Institute for Health and Care Excellence; 2008. Available from: https://www.nice.org.uk/guidance/cg68 National Institute for Health and Care Excellence (NICE). Stroke and transient ischaemic attack in over 16s: diagnosis and initial management. NICE guidelines [CG68]. London: National Institute for Health and Care Excellence; 2008. Available from: https://​www.​nice.​org.​uk/​guidance/​cg68
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go back to reference Bibok MB, Penn AM, Lesperance ML, Votova K, Balshaw R. Development of a multivariate clinical prediction model for the diagnosis of mild stroke/TIA in physician first-contact patient settings. bioRxiv. 2016; https://doi.org/10.1101/089227. Bibok MB, Penn AM, Lesperance ML, Votova K, Balshaw R. Development of a multivariate clinical prediction model for the diagnosis of mild stroke/TIA in physician first-contact patient settings. bioRxiv. 2016; https://​doi.​org/​10.​1101/​089227.
Metadata
Title
Reducing time-to-unit among patients referred to an outpatient stroke assessment unit with a novel triage process: a prospective cohort study
Authors
Maximilian B. Bibok
Kristine Votova
Robert F. Balshaw
Mary L. Lesperance
Nicole S. Croteau
Anurag Trivedi
Jaclyn Morrison
Colin Sedgwick
Andrew M. Penn
Publication date
01-12-2018
Publisher
BioMed Central
Published in
BMC Health Services Research / Issue 1/2018
Electronic ISSN: 1472-6963
DOI
https://doi.org/10.1186/s12913-018-2952-x

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