Cold-stored platelets: A product with function optimized for hemorrhage control.

Early administration of blood products following severe trauma is pivotal for establishing hemostasis and achieving successful outcomes. Platelet transfusions, in particular, provide rapid control of hemostasis and help to restore platelet dysfunction induced by trauma. In the U.S. platelets used for therapeutic purposes are stored at room temperature with a limited shelf life of 5-7 days. Issues with room temperature storage of platelets, including an increased risk of bacterial growth and a decline in platelet hemostatic function, have led to a resurgence in interest in cold-stored platelets for therapeutic transfusion. This review presents the current state of cold-stored platelets and cold-stored whole blood as treatment for actively bleeding patients. Usage of cold stored platelets in alternative areas, such as in the field of regenerative medicine, is also discussed.