Abstract
Introduction: Patients presenting to emergency departments (ED) with TIA and minor strokes (TIAMS) are often admitted for expedited evaluation, though outpatient care models have been proposed. We piloted a rapid outpatient evaluation protocol for patients presenting with TIAMS within 24 hours of ED discharge. We hypothesized that this approach would reduce hospital costs and length of stay (LOS). Methods: This analysis looked at patients presenting to our institution’s ED with TIAMS (NIHSS < 5) in calendar year 2017. We compared hospitalization LOS, costs and expected revenues between admitted patients and those referred for rapid outpatient evaluation. Patients eligible for outpatient evaluation were without disabling deficits, recurrent symptoms, new-onset atrial fibrillation, prior carotid imaging with >50% stenosis, and not receiving thrombolysis. Disabling deficits were defined as new gait impairments, significant motor weakness, hemianopia, dysphagia or severe aphasia. Cost data was obtained from our finance department and expected revenue was estimated using Medicare reimbursement data, assuming Medicare-Fee for Service as the primary payer for all patients. Results: We identified 92 patients referred to our rapid outpatient clinic and 90 admitted patients (mean NIHSS 0.8 vs 1.8 respectively). In comparison to patients who were admitted, patients referred to outpatient evaluation had shorter hospital stays, lower total hospitalization costs, and decreased net-losses after accounting for expected revenue (Table). Only one patient in the outpatient cohort was readmitted for further management. Overall, the one-year pilot cohort averted approximately 138 bed-days and $950,000 in hospitalization costs. Conclusions: For patients who presented to our ED with TIAMS without disabling deficits, rapid outpatient evaluation reduced hospital LOS and total costs. Further research is needed to incorporate costs to payers and patients.
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