• A D Kvisselgaard, S A Wolthers, A Wikkelsø, L B Holst, B Drivenes, and A Afshari.
• Department of Anesthesia and Intensive Care, Copenhagen University Hospital-Herlev, Copenhagen, Denmark.
• Acta Anaesthesiol Scand. 2025 Jan 1; 69 (1): e14558e14558.

BackgroundBleeding patients face significant morbidity and mortality due to impaired haemostasis. Haemostatic resuscitation has evolved, yet the optimal approach remains unclear. The primary objective was to assess the benefits and risks of transfusion guided by TEG/ROTEM versus standard of care in bleeding patients in an updated review.MethodsThis systematic review of randomised controlled trials with meta-analyses and trial sequential analysis was conducted according to Cochrane Collaboration methodology, PRISMA and GRADE guidelines. A literature search was conducted in five major databases. Both paediatric and adult patients were included. The primary outcome was mortality, and secondary outcomes were the administration of blood products, blood loss, surgical reintervention, and dialysis-dependent renal injury.ResultsThis systematic review included 31 randomised trials (n = 2756), with most patients undergoing elective cardiac surgery. TEG-/ROTEM-guided algorithms reduced the amount of transfused fresh frozen plasma (RR 0.5, 95% CI 0.32-0.72, I2: 94%), platelets (RR 0.7, 95% CI 0.55-0.91, I2: 57%), the risk for surgical reintervention (RR 0.65, 95% CI 0.47-0.94, I2: 0%), and bleeding with a standard mean difference of -0.31 (95% CI -0.55 to -0.08, I2: 75%). No statistically significant difference was demonstrated for mortality (RR 0.76, 95% CI 0.57-1.00, I2: 5%). According to GRADE methodology, the certainty of the evidence was very low for all outcomes. Trial sequential analysis of mortality analysis indicated that 54% of the optimal information size was reached with an alpha-boundary RR of 0.81 (95% CI 0.63-1.03).ConclusionsTEG-/ROTEM-guided transfusion algorithms may reduce the risk of mortality, bleeding volume, and the need for fresh frozen plasma and platelets, but the evidence is very uncertain. Further, the results were primarily based on the adult population undergoing elective cardiac surgery.© 2024 Acta Anaesthesiologica Scandinavica Foundation.

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