Transfusion Ratios and Deficits in Injured Children With Life-Threatening Bleeding

Area of Science:

• Pediatric critical care medicine
• Trauma resuscitation
• Hemorrhagic shock management

Background:

• Life-threatening bleeding in children requires timely and effective resuscitation.
• The optimal balance of blood products, specifically plasma and platelets relative to red blood cells, is not well-defined in pediatric trauma.
• Understanding the impact of product deficits is crucial for improving outcomes.

Purpose of the Study:

• To evaluate the association between plasma and platelet ratios and deficits with survival in injured children experiencing life-threatening bleeding.
• To determine if specific resuscitation ratios or product deficits correlate with mortality in this vulnerable population.

Main Methods:

• Secondary analysis of a prospective observational study (MAST) involving 191 children with severe bleeding.
• Weight-adjusted blood product volumes (plasma:RBC and platelet:RBC ratios) and calculated deficits were analyzed.
• Statistical adjustments were made for factors including age, injury severity, and medical interventions.

Main Results:

• A high plasma to red blood cell ratio (> 1:2) was associated with improved 6-hour survival (OR = 0.12 [0.03-0.52], p = 0.004).
• Increased plasma deficits correlated with higher 6-hour and 24-hour mortality (p=0.04 and p=0.01, respectively).
• Greater platelet deficits were linked to increased 24-hour mortality (p=0.02).

Conclusions:

• Balanced resuscitation with adequate plasma and platelet administration may enhance early survival in pediatric trauma patients.
• This hypothesis-generating study suggests targeting specific ratios and minimizing deficits could be key to optimal hemostatic resuscitation.
• Further multicenter clinical trials are warranted to confirm these findings and establish best practices.