• Daniel Kolinsky, Samuel M Keim, Brian G Cohn, Evan S Schwarz, and Donald M Yealy.
• Division of Emergency Medicine, Washington University School of Medicine, St. Louis, Missouri.
• J Emerg Med. 2017 Jan 1; 52 (1): 52-58.

BackgroundThe current standards for domestic emergency medical services suggest that all patients suspected of opioid overdose be transported to the emergency department for evaluation and treatment. This includes patients who improve after naloxone administration in the field because of concerns for rebound toxicity. However, various emergency medical services systems release such patients at the scene after a 15- to 20-min observation period as long as they return to their baseline.ObjectivesWe sought to determine if a "treat and release" clinical pathway is safe in prehospital patients with suspected opioid overdose.ResultsFive studies were identified and critically appraised. From a pooled total of 3875 patients who refused transport to the emergency department after an opioid overdose, three patient deaths were attributed to rebound toxicity. These results imply that a "treat and release" policy might be safe with rare complications. A close review of these studies reveals several confounding factors that make extrapolation to our population limited.ConclusionThe existing literature suggests a "treat and release" policy for suspected prehospital opioid overdose might be safe, but additional research should be conducted in a prospective design.Copyright © 2016 Elsevier Inc. All rights reserved.

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