Blood On Board Project: Experience From Pegaso 2 Base in Grosseto, 4.5 Years After Implementation.

This brief communication is intended to share with all colleagues working in helicopter emergency medical services and prehospital emergency care the methods for managing blood components and transfusions with O-negative packed red blood cells (PRBCs) in our operational setting. The "Blood on Board" project was initiated in our Unit 4 and a half years ago, and the number of patients transfused with O-negative PRBCs has progressively increased, demonstrating the efficacy and safety of the procedure.