• Dries Helsloot, Mark Fitzgerald, Rolf Lefering, Christopher Groombridge, Nathalie Becaus, Sandra Verelst, Carlo Missant, and TraumaRegister DGU.
• Department of Anesthesia and Emergency Medicine, AZ Groeninge Hospital, President Kennedylaan 4, 8500, Kortrijk, Belgium. dries.helsloot@kuleuven.be.
• Crit Care. 2024 Jul 5; 28 (1): 222222.

BackgroundIn major trauma patients, hypocalcemia is associated with increased mortality. Despite the absence of strong evidence on causality, early calcium supplementation has been recommended. This study investigates whether calcium supplementation during trauma resuscitation provides a survival benefit.MethodsWe conducted a retrospective analysis using data from the TraumaRegister DGU® (2015-2019), applying propensity score matching to balance demographics, injury severity, and management between major trauma patients with and without calcium supplementation. 6 h mortality, 24 h mortality, and in-hospital mortality were considered as primary outcome parameters.ResultsWithin a cohort of 28,323 directly admitted adult major trauma patients at a European trauma center, 1593 (5.6%) received calcium supplementation. Using multivariable logistic regression to generate propensity scores, two comparable groups of 1447 patients could be matched. No significant difference in early mortality (6 h and 24 h) was observed, while in-hospital mortality appeared higher in those with calcium supplementation (28.3% vs. 24.5%, P = 0.020), although this was not significant when adjusted for predicted mortality (P = 0.244).ConclusionIn this matched cohort, no evidence was found for or against a survival benefit from calcium supplementation during trauma resuscitation. Further research should focus on understanding the dynamics and kinetics of ionized calcium levels in major trauma patients and identify if specific conditions or subgroups could benefit from calcium supplementation.© 2024. The Author(s).

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