• J Schmitz, S Kerkhoff, D Sander, G Schulz, T Warnecke, and J Hinkelbein.
• Klinik für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Köln (AöR), Kerpener Str. 62, 50937, Köln, Deutschland. jan.schmitz_@uk-koeln.de.
• Anaesthesist. 2019 Jun 1; 68 (6): 361-367.

BackgroundRecent studies demonstrated that in-hospital emergencies are linked to a higher patient mortality. In approximately 10% of patients an unexpected incident occurs during the hospital stay. Therefore, the establishment of in-hospital medical emergency teams (MET) is becoming more important in the interdisciplinary emergency treatment. The aim of this study was an analysis of medical documentation, operational tactics and procedures taken by MET of the University Hospital of Cologne in a 4-year period ranging from 2013 to 2016.Material And MethodsA retrospective analysis of 1664 emergency forms from MET activities at the University Hospital of Cologne from 1 January 2013 to 31 December 2016 was carried out. Every MET activation call via the emergency telephone number (5555) and subsequent emergency treatment was recorded using a standardized documentation form. The registry number on ClinicalTrials.gov is NCT03786445.ResultsThere were 1664 emergency team calls in the whole study period. Between 2013 (404 calls) and 2016 (461 calls) the number of calls increased by 11.4%. The total mission time of the MET increased in the study period from 8342 min (2013) to 10,800 min (2016, +29.5%) and the average mission time increased from 2013 (35 min) to 2016 (40 min) by 14.3%. The primary reason for activation was collapse or syncope and was the underlying cause for 29% of calls. The number of deployments for emergencies at weekends was 50% of those during weekdays and 6.5% of the calls were for cardiopulmonary resuscitation (CPR).ConclusionAnalysis of data revealed that the number of MET calls, total operating time and average deployment time increased from 2013 to 2016. The primary reason for MET activations was collapse or syncope and every 17th deployment was for cardiopulmonary resuscitation. The incidence of in-hospital cardiac arrests decreased during the study period.

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