The DASH score calculator for recurrent VTE is a tool designed to assess the risk of venous thromboembolism recurrence. It informs decisions regarding the continuation or discontinuation of anticoagulation therapy. The calculator evaluates four clinical factors, each contributing to the overall score:

- **Abnormal D-dimer at 1 month after stopping anticoagulation**: If present, it adds 2 points to the score.
- **Age ≤ 50 years**: Being 50 years or younger adds 1 point to the score.
- **Male patient**: Being male adds 1 point to the score.
- **Hormone use at VTE onset (if female)**: For females who used hormones at the onset of VTE, 2 points are added.

The total score ranges from 0 to 6, determining the annual risk of VTE recurrence. The results guide treatment recommendations:

- Score of 0: Represents a 2.4% annual risk of recurrence, suggesting that discontinuing anticoagulation may be considered.
- Score of 1: Indicates a 3.9% annual risk, again suggesting the possibility of stopping anticoagulation.
- Score of 2: Associated with a 6.3% annual risk, where continuation of anticoagulation should be considered.
- Score of 3: Corresponds to a 10.8% annual risk, recommending that anticoagulation likely continue.
- Score of 4: Reflects a 19.9% annual risk, strongly suggesting continuing anticoagulation therapy.

These interpretations aid clinicians in tailoring anticoagulation strategies based on individual risk profiles.

The DASH score, or the "D-dimer, Age, Sex, Hormonal therapy" score, is a clinical calculator used to predict the risk of recurrent Venous Thromboembolism (VTE) in patients who have had a first unprovoked VTE. This scoring system is particularly useful in guiding clinicians on whether to continue or discontinue anticoagulation therapy in these patients. 

The DASH score takes into account four factors: D-dimer levels two months after stopping anticoagulation (2 points if positive), patient's age (1 point if less than 50 years old), sex (1 point if female), and hormonal therapy use at the time of the event (1 point if yes). 

Patients with a DASH score of 0 or 1 have a low risk of VTE recurrence and may be considered for discontinuation of anticoagulation, while those with a score of 2 or more have a higher risk and may benefit from continued anticoagulation. 

The DASH score should not be used in patients with provoked VTE, as it was not designed or validated for this population. It also may not be applicable in patients with cancer-associated VTE.

DASH score for recurrent VTE