alexa Medical Emergency Triage and Treatment System (METTS): a new protocol in primary triage and secondary priority decision in emergency medicine.


Journal of Trauma & Treatment

Author(s): Widgren BR, Jourak M

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Abstract BACKGROUND: In many Emergency Department (ED) triage scoring systems, vital signs are not included as an assessment parameter. OBJECTIVES: To evaluate the validity of a new protocol for Emergency Medicine in a large cohort of patients referred to in-hospital care. METHODS: From January 1 to June 30, 2006, 22,934 patients were admitted to the ED at Sahlgrenska University Hospital. Of those, 8695 were referred to in-hospital care and included in the study. A new five-level triage tool, combining vital signs, symptoms, and signs in the triage decision, was used. A small control of the inter-rater disagreement was also performed in 132 parallel, single-blinded observations. RESULTS: Fifty percent of the patients were admitted by ambulance and the other 50\% by walk-in. Hospital stay was significantly (p < 0.001) longer in those admitted by ambulance (9.3 ± 14 days) as compared with walk-in patients (6.2 ± 10 days). In-hospital mortality incidence was higher (8.1\%) in patients admitted by ambulance, as compared with walk-in patients (2.4\%). Hospital stay and in-hospital mortality increased with higher level of priority. In the highest priority groups, 32-53\% of the patients were downgraded to a lower priority level after primary treatment. CONCLUSION: In the present study, the METTS protocol was shown to be a reliable triage method and a sensitive tool for secondary re-evaluation of the patient in the ED. Copyright © 2011 Elsevier Inc. All rights reserved. This article was published in J Emerg Med and referenced in Journal of Trauma & Treatment

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