Clinical Scorecard: Impact of Antiplatelet and Anticoagulant Therapy on Severity of Injury and Mortality Rates in Intensive Care Unit Patients with Traumatic Brain Injury

At a Glance

Key Highlights

• Age and preinjury anticoagulant medication independently predict increased post-TBI mortality.
• Warfarin use is associated with a sixfold increase in TBI mortality, whereas direct oral anticoagulants (DOACs) do not increase in-hospital mortality in mild TBI.
• Antiplatelet and anticoagulant medications do not increase mortality in trauma patients without TBI, highlighting a specific interaction with TBI.

Guideline-Based Recommendations

Diagnosis

• Use non-contrast head CT scans at hospital admission for TBI assessment.
• Apply validated CT scoring systems such as the Helsinki CT score to quantify intracranial injury burden and estimate prognosis.

Management

• Consider the impact of preinjury anticoagulant and antiplatelet therapy on TBI severity and mortality risk when planning treatment.
• Monitor and manage coagulopathy to potentially reduce hematoma progression.

Monitoring & Follow-up

• Use Glasgow Coma Scale (GCS) scores and clinical findings alongside CT imaging to assess TBI severity.
• Monitor intracranial pressure (ICP) as indicated, using standardized scoring systems and interventions such as external ventricular drains or decompressive craniectomy when necessary.

Risks

• Recognize that warfarin significantly increases mortality risk in TBI patients.
• Be aware that antiplatelet therapy has minimal to no increase in mortality risk.
• Understand that anticoagulant and antiplatelet therapy do not increase mortality in trauma patients without TBI.

Patient & Prescribing Data

Adult patients with TBI admitted to ICU, including those on preinjury antiplatelet or anticoagulant therapy

Preinjury use of warfarin markedly increases mortality risk; DOACs appear safer in mild TBI; antiplatelet therapy shows minimal impact on mortality.

Clinical Best Practices

• Incorporate CT scoring systems such as the Helsinki CT score for standardized assessment of intracranial injury burden.
• Evaluate preinjury medication history for anticoagulant and antiplatelet use to inform prognosis and management.
• Centralize specialized TBI intensive care in tertiary centers with multidisciplinary expertise.
• Use comprehensive clinical and radiological data to guide individualized patient care and anticipate complications.

References

• Marshall CT classification
• Helsinki CT score
• NeuroImaging Radiological Interpretation System (NIRIS)
• Stockholm CT score
• Finnish Intensive Care Consortium (FICC) database