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haematology oncology

Khorana Risk Score for VTE in Cancer

Predicts risk of venous thromboembolism (VTE) in outpatients with cancer receiving chemotherapy. Guides thromboprophylaxis decisions.

Score interpretation

High Risk

→ Khorana score ≥3: High VTE risk (~7.1% at 2.5 months). Consider pharmacological thromboprophylaxis with LMWH or DOAC (rivaroxaban/apixaban) if bleeding risk acceptable.

Intermediate Risk

→ Khorana score 1–2: Intermediate VTE risk (~2%). Individualise thromboprophylaxis decision; discuss with patient.

Low Risk

→ Khorana score 0: Low VTE risk (~0.8%). Routine thromboprophylaxis not recommended in ambulatory setting.

Interpretation bands for the Khorana 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.