Dutch trauma system performance: Are injured patients treated at the right place?

• Published in: Injury 2021-07, Vol.52 (7), p.1688-1696
• Main Authors: Sturms, Leontien M., Driessen, Mitchell L.S., van Klaveren, David, ten Duis, Henk-Jan, Kommer, Geert Jan, Bloemers, Frank W., den Hartog, Dennis, Edwards, Michael J., Leenhouts, Peter A., van Zutphen, S., Schipper, Inger B., Spanjersberg, Richard, Wendt, Klaus W., de Wit, Ralph J., Poeze, Martijn, Leenen, Luke P., de Jongh, Mariska
• Format: Article
• Language: English
• Subjects: emergency medical services; severe trauma; Trauma centres; undertriage
• ISSN: 0020-1383; 1879-0267
• DOI: 10.1016/j.injury.2021.05.015

•The Dutch major trauma centres are underutilized as one third of all Dutch severely injured patients did not receive primary MTC care.•With increasing injury severity scores, larger number of patients received direct MTC care.•Patient characteristics associated with prehospital undertriage were: female gender, older age, ground level falls, severe thoracic or abdominal trauma and lower injury severity scores. The goal of trauma systems is to match patient care needs to the capabilities of the receiving centre. Severely injured patients have shown better outcomes if treated in a major trauma centre (MTC). We aimed to evaluate patient distribution in the Dutch trauma system. Furthermore, we sought to identify factors associated with the undertriage and transport of severely injured patients (Injury Severity Score (ISS) >15) to the MTC by emergency medical services (EMS). Data on all acute trauma admissions in the Netherlands (2015-2016) were extracted from the Dutch national trauma registry. An ambulance driving time model was applied to calculate MTC transport times and transport times of ISS >15 patients to the closest MTC and non-MTC. A multivariable logistic regression analysis was performed to identify factors associated with ISS >15 patients’ EMS undertriage to an MTC. Of the annual average of 78,123 acute trauma admissions, 4.9% had an ISS >15. The nonseverely injured patients were predominantly treated at non-MTCs (79.2%), and 65.4% of patients with an ISS >15 received primary MTC care. This rate varied across the eleven Dutch trauma networks (36.8%-88.4%) and was correlated with the transport times to an MTC (Pearson correlation -0.753, p=0.007). The trauma networks also differed in the rates of secondary transfers of ISS >15 patients to MTC hospitals (7.8% - 59.3%) and definitive MTC care (43.6% - 93.2%). Factors associated with EMS undertriage of ISS >15 patients to the MTC were female sex, older age, severe thoracic and abdominal injury, and longer additional EMS transport times. Approximately one-third of all severely injured patients in the Netherlands are not initially treated at an MTC. Special attention needs to be directed to identifying patient groups with a high risk of undertriage. Furthermore, resources to overcome longer transport times to an MTC, including the availability of ambulance and helicopter services, may improve direct MTC care and result in a decrease in the variation of the undertriage of severely injured patients to MTCs