• Benjamin C Sun, Heather McCreath, Li-Jung Liang, Stephen Bohan, Christopher Baugh, Luna Ragsdale, Sean O Henderson, Carol Clark, Aveh Bastani, Emmett Keeler, Ruopeng An, and Carol M Mangione.
• Department of Emergency Medicine, Oregon Health and Science University, Portland, OR. Electronic address: sunb@ohsu.edu.
• Ann Emerg Med. 2014 Aug 1; 64 (2): 167-75.

Study ObjectiveOlder adults are frequently hospitalized from the emergency department (ED) after an episode of unexplained syncope. Current admission patterns are costly, with little evidence of benefit. We hypothesize that an ED observation syncope protocol will reduce resource use without adversely affecting patient-oriented outcomes.MethodsThis randomized trial at 5 EDs compared an ED observation syncope protocol to inpatient admission for intermediate-risk adults (≥50 years) presenting with syncope or near syncope. Primary outcomes included inpatient admission rate and length of stay. Secondary outcomes included 30-day and 6-month serious outcomes after hospital discharge, index and 30-day hospital costs, 30-day quality-of-life scores, and 30-day patient satisfaction.ResultsStudy staff randomized 124 patients. Observation resulted in a lower inpatient admission rate (15% versus 92%; 95% confidence interval [CI] difference -88% to -66%) and shorter hospital length of stay (29 versus 47 hours; 95% CI difference -28 to -8). Serious outcome rates after hospital discharge were similar for observation versus admission at 30 days (3% versus 0%; 95% CI difference -1% to 8%) and 6 months (8% versus 10%; 95% CI difference -13% to 9%). Index hospital costs in the observation group were $629 (95% CI difference -$1,376 to -$56) lower than in the admission group. There were no differences in 30-day quality-of-life scores or in patient satisfaction.ConclusionAn ED observation syncope protocol reduced the primary outcomes of admission rate and hospital length of stay. Analyses of secondary outcomes suggest reduction in index hospital costs, with no difference in safety events, quality of life, or patient satisfaction. Our findings suggest that an ED observation syncope protocol can be replicated and safely reduce resource use.Copyright © 2013 American College of Emergency Physicians. Published by Mosby, Inc. All rights reserved.

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