The value of thromboelastography to neonatology.

Hemostatic derangements are common in critically ill and premature neonates. Nevertheless, hemostasis assessment in neonates is still challenging. The hemostatic system undergoes age-related physiological changes during its maturation and exhibits quantitative and qualitative differences between infants and adults. Conventional coagulation tests are mainly responsive to procoagulant factors, regardless of the contribution of cellular elements, anticoagulants and fibrinolytic contributors and, therefore, their role in predicting bleeding in neonatal acquired coagulopathy is somewhat limited. Viscoelastic coagulation tests offer a promising alternative, enabling a bedside and real-time assessment of the entire hemostatic process in short turn-around times with a limited amount of blood. These tests allow a targeted hemostatic monitoring and a tailored management of blood products and anticoagulation. The routine use of VCTs in the NICU remains limited, especially for premature infants, due to the lack of established normative ranges. In this review we will provide an overview of the main evidence related to the clinical application of viscoelastic monitoring in the neonatal setting.