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Assessing the Risk of Venous Thromboembolism [VTE] in Hospitalised Medical Patients:
The IMPROVE Predictive Score
The IMPROVE Associative Score
The IMPROVEDD Score

Introduction

The IMPROVE [International Medical Prevention Registry on Venous Thromboembolism] Predictive score was designed to assesses the risk of VTE in hospitalised medical patients.
The IMPROVE Predictive score for VTE includes 4 independent risk factors for VTE present at admission.
The IMPROVE Associative score includes 7 variables present either at admission or during hospitalization.
The IMPROVEDD score adds D-dimer as a recognized risk factor to the conventional IMPROVE associative score.

The IMPROVE Predictive Score:


This predicts the VTE risk in medical patients on admission:

Select Criteria:


Previous VTE
Yes
 3 Points
Malignancy
Treated or untreated within the previous 6 months
Yes
 1 Point
Thrombophilia
Yes
 3 Points
Age >60 yrs
Yes
 1 Point


Score
[Max score 8]

IMPROVE Predictive Score
VTE Risk on admission
0-1 Low: Observed VTE risk <1%
2-3 Moderate
≥4 High: Observed VTE risk 5.7%


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Comments

NOTE: Whilst we have done our utmost to ensure the accuracy of the data in this section, users should access the original publications.

All information contained in this section of Practical-Haemostasis.com is provided for educational purposes only. This information should not be used for the diagnosis or treatment of any health problem or disease.

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LINKS & References

1. Tapson VF, Decousus H, et al. Venous thromboembolism prophylaxis in acutely ill hospitalized medical patients: findings from the International Medical Prevention Registry on Venous Thromboembolism. Chest. 2007; 132: 936-45.

2. Spyropoulos AC, Anderson FA, Jr., et al. Predictive and associative models to identify hospitalized medical patients at risk for VTE. Chest. 2011; 140: 706-14.

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Updated:         27-Sep-2022