180
Participants
Start Date
September 1, 2025
Primary Completion Date
June 30, 2027
Study Completion Date
December 31, 2027
low-titer O-group whole blood
Arm Description: During the emergency phase, administer 4 units of low-titer group O whole blood (anti-A/B IgM antibody titer \< 1:64); once the patient's blood type is determined, switch to type-specific whole blood.
1:1:1 component transfusion
"Following the Chinese Expert Consensus on Emergency Blood Support Models and Transfusion Strategies for Severely Injured Patients (2024 Edition), implement the massive transfusion protocol (MTP) by transfusing type-specific blood components in a 1:1:1 ratio (red blood cells : plasma : platelets)."
ABO- and Rh-compatible whole blood
"Administer type-specific whole-blood transfusion in accordance with the Chinese Expert Consensus on Emergency Blood Support Models and Transfusion Strategies for Severely Injured Patients (2024 Edition)."
Xijing Hospital, Xi'an
Xijing Hospital
OTHER