HAMILTON score calculator

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Sadaf Sharfaei M.D.[2]

HAMILTON Score Calculator

Calculation of the HAMILTON Score

Check all boxes that apply to your patient:

HAMILTON Score Calculator
Variable Score
Active malignancy in the previous 6 months 2
Lower limb plaster immobilization 2
The emergency department physician has an elevated clinical suspicion of DVT in the absence of other possible alternative diagnoses 2
Bed rest for more than 3 days
OR
Recent surgery in the previous 4 weeks
1
Discrepancy of ≥ 3 cm in calf circumference 1
Erythema 1
Male 1
HAMILTON Score:
Interpretation:

Interpretation of the HAMILTON Score

The interpretation of the score is as follows:

  • Score ≤2: Unlikely probability of DVT
  • Score ≥3: Likely probability of DVT
  • The combination of a HAMILTON score ≤2 and a negative D-dimer excludes DVT with a negative predictive value of 99%.

References