• Fadi Nahab, George Leach, Carlene Kingston, Osman Mir, Jerome Abramson, Sarah Hilton, Matthew Keadey, Bryce Gartland, and Michael Ross.
• Department of Neurology, Emory University, Atlanta, Georgia 30322, USA. fnahab@emory.edu
• J Stroke Cerebrovasc Dis. 2012 Nov 1;21(8):673-8.

AbstractThis study examined the impact of an emergency department (ED) observation unit's accelerated diagnostic protocol (ADP) on hospital length of stay (LOS), cost of care, and clinical outcome of patients who had sustained a transient ischemic attack (TIA). All patients with TIA presenting to the ED over a 18-consecutive month period were eligible for the study. During the initial 11 months of the study (pre-ADP period), all patients were admitted to the neurology service. Over the subsequent 7 months (post-ADP period), patients were either managed using the ADP or were admitted based on ADP exclusion criteria or at a physician's discretion. All patients had orders for serial clinical examinations, neurologic evaluation, cardiac monitoring, vascular imaging of the brain and neck, and echocardiography. A total of 142 patients were included in the study (mean age, 67.9 ± 13.9 years; 61% female; mean ABCD(2) score, 4.3 ± 1.4). In the post-ADP period, 68% of the patients were managed using the ADP. Of these patients, 79% were discharged with a median LOS of 25.5 hours (ED + observation unit). Compared with the pre-ADP patients, the post-ADP patients (ADP and non-ADP) had a 20.8-hour shorter median LOS (95% confidence interval, 16.3-25.1 hours; P < .01) than pre-ADP patients and lower median associated costs (cost difference, $1643; 95% confidence interval, $1047-$2238). The stroke rate at 90 days was low in both groups (pre-ADP, 0%; post-ADP, 1.2%). Our findings indicate that introduction of an ED observation unit ADP for patients with TIA at a primary stroke center is associated with a significantly shorter LOS and lower costs compared with inpatient admission, with comparable clinical outcomes.Copyright © 2012 National Stroke Association. Published by Elsevier Inc. All rights reserved.

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