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neurology emergency-medicine critical-care

IMPACT Score for Traumatic Brain Injury Outcome

International Mission for Prognosis and Clinical Trial design in TBI (IMPACT). Predicts 6-month outcome (death or vegetative state) in patients with moderate-severe TBI. Core, CT, and Lab models available.

Used in: Head Injury

Score interpretation

Predicted 6-Month Mortality < 20 % 0–19.99

IMPACT (core + CT + lab) predicted 6-month mortality below 20 %.

→ Use alongside clinical assessment; not for individual treatment limitation.

Predicted 6-Month Mortality 20–50 % 20–49.99

IMPACT predicted 6-month mortality 20–50 %.

→ Discuss prognosis with neurosurgery / neurocritical care.

Predicted 6-Month Mortality ≥ 50 % 50–100

IMPACT predicted 6-month mortality 50 % or more.

→ Senior multidisciplinary discussion; prognostic models inform, not decide, care.

Interpretation bands for the IMPACT Score. Apply clinical judgement and local guidance.

References

Related

Curated clinical cross-links plus same-class fallbacks.

Decision support only — verify against a current formulary, NICE, or your local guideline before clinical use.