• Roland Biber, Carsten Kopschina, Maximilian Willauschus, Hermann Josef Bail, Rolf Lefering, and TraumaRegister DGU.
• Department of Traumatology, Kliniken Dr. Erler, Nuremberg, Germany. r.biber@erler-klinik.de.
• Eur J Trauma Emerg Surg. 2023 Aug 1; 49 (4): 192719321927-1932.

PurposeTo evaluate the current practice regarding the prevalence and sequence of x-ray and CT scan in diagnostic algorithms for multiple injured patients.MethodsAll primarily treated patients with ISS ≥ 9 were selected from the TraumaRegister DGU® (years 2008-2015; n = 109,257). Four subgroups of diagnostic algorithm were defined: CT only (group C; n = 63,763), CT before x-ray (group CX; n = 3711), x-ray followed by CT (group XC; n = 33,590), and x-ray only (group X, n = 8193). We analysed the type and sequence of diagnostic procedures and their association with hospital mortality and length-of-stay in the emergency room (ER-LOS).ResultsPredominant strategies were CT only (58.4%) and x-ray followed by CT (30.7%). Overall mortality was between 10 and 12% in all subgroups involving CT, and 6.6% in the x-ray only group. Expected mortality was within the 95% confidence of observed mortality except for the CX group (observed 10.0%; CI95 8.9-11.0; expected 11.1%). Mean / median length of stay in the emergency room was shortest in the CT only subgroup: (60 / 50 min). Prior x-ray diagnostic resulted in additional 3 min (group XC). The use of additional x-ray diagnostic decreased from 51.6% (in 2008) to 35.4% (in 2015).ConclusionsER-LOS is significantly affected by diagnostic pathway. CT scan alone accelerates ER-LOS, which however was not associated with lower mortality rates. Performing completive x-ray examinations after an initial CT scan seems not to deteriorate mortality rates.© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany.

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