Tranexamic Acid in Pediatric Severe Head Trauma with Cerebellar Bleeding

Introduction to Tranexamic Acid Use

• The American College of Surgeons recommends tranexamic acid for children with severe head trauma and intracranial bleeding in the cerebellum, but only if the child has mild-to-moderate injury severity and can be treated within 3 hours of injury, using a loading dose of 15 mg/kg IV over 10 minutes followed by 2 mg/kg/hour infusion for 8 hours 1

Critical Patient Selection Criteria

• Mild-to-moderate TBI patients benefit from TXA with a 22% reduction in head injury-related death when treated within 3 hours 2
• Patients with both pupils reactive at baseline demonstrate the most cost-effective mortality reduction 2

Pediatric-Specific Dosing Protocol

• The recommended loading dose for children with traumatic brain injury is 15 mg/kg IV over 10 minutes 1
• The recommended maintenance infusion is 2 mg/kg/hour for 8 hours 1
• The maximum total dose should not exceed 100 mg/kg to reduce seizure risk 3

Critical Timing Considerations

• Treatment within 1 hour of injury results in the greatest benefit with 65% lower 30-day mortality 2
• Every 15-minute delay in treatment reduces effectiveness by approximately 10% 2, 4

Implementation Algorithm

• If the patient has a GCS >3 or pupils reactive, and it has been less than 3 hours from injury, give TXA immediately 1, 2
• If the patient has a GCS 3 with bilateral unreactive pupils, or it has been more than 3 hours from injury, do not give TXA 2, 4

Critical Pitfalls to Avoid

• Do not delay treatment for diagnostic workup, as delays significantly reduce effectiveness 2
• Do not use TXA in severe TBI, as children with GCS 3 and bilateral unreactive pupils do not benefit 2
• Monitor for seizures, as higher doses are associated with increased seizure risk, particularly above 100 mg/kg total dose 3