• Katsuya Maeshima, Ryo Yamamoto, and Junichi Sasaki.
• Department of Emergency and Critical Care Medicine, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan. spa94x49@gmail.com.
• Eur J Trauma Emerg Surg. 2022 Dec 1; 48 (6): 483748454837-4845.

PurposeThis research aimed to establish a scoring system for selecting candidates for urgent angioembolization (AE).MethodsPatients with blunt trauma were retrospectively identified in a nationwide trauma registry. Patients aged ≥ 15 years with a systolic blood pressure of ≥90 mmHg were included. These individuals were then categorized into development and validation cohorts based on the date of admission. Next, an eight-point scaled system was developed using odds ratios obtained from the multivariate analysis of patients' clinical factors on their arrival at the hospital, with the implementation of urgent AE as a dependent variable.ResultsThe development cohort and validation cohort included 158,192 and 116,941 patients, respectively, and 3296 (2.1%) patients in the development cohort and 2,550 (2.2%) patients in the validation cohort underwent urgent AE. The frequency of transfusion within 24 h after arrival and the Injury Severity Score were similar between the two cohorts (16,867 [10.7%] vs. 11,222 [9.6%] and 10 [9-18] vs. 10 [9-17], respectively). The number of patients who were discharged and hospital-free days were comparable between the two cohorts (139,436 [94.4%] vs. 106,107 [95.6%] and 72 [53-84] vs. 73 [57-84] days, respectively). The probabilities and the observed rates of urgent AE increased proportionally from 2% at a score of ≤ 3 to almost 15% at a score of ≥ 7. In terms of predictive factors, no significant interaction was noted.ConclusionThe Trauma-Angio scoring system can be used as a trigger to suggest the possibility of urgent AE.Trial Registration20090087, 31st July 2009.© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany.

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