The Villalta score calculator is used to assess the severity of post-thrombotic syndrome (PTS) by evaluating a series of clinical symptoms and signs. The calculator takes input for various symptoms such as pain, cramps, heaviness, paresthesia, and more, including venous ulcer presence. Each symptom is assigned a score based on the severity, ranging from "Absent" to "Severe," with "Absent" scoring the lowest and "Severe" scoring the highest.

The calculator uses the following scoring system: 

| Symptom/Sign              | Absent | Mild | Moderate | Severe | Present | 
|---------------------------|--------|------|----------|--------|---------| 
| Pain                      | 0      | 1    | 2        | 3      |         | 
| Cramps                    | 0      | 1    | 2        | 3      |         | 
| Heaviness                 | 0      | 1    | 2        | 3      |         | 
| Paresthesia               | 0      | 1    | 2        | 3      |         | 
| Pruritus                  | 0      | 1    | 2        | 3      |         | 
| Pretibial Edema           | 0      | 1    | 2        | 3      |         | 
| Skin Induration           | 0      | 1    | 2        | 3      |         | 
| Hyperpigmentation         | 0      | 1    | 2        | 3      |         | 
| Redness                   | 0      | 1    | 2        | 3      |         | 
| Venous Ectasia            | 0      | 1    | 2        | 3      |         | 
| Pain on Calf Compression  | 0      | 1    | 2        | 3      |         | 
| Venous Ulcer              | 0      |      |          |        | 15      | 

To compute the total Villalta score, the calculator sums up the scores for each symptom/sign based on the user's input. The presence of a venous ulcer adds a fixed score of 15.

The total score can then be interpreted as follows:

- A score of 0 to 4 indicates "Criteria not met," suggesting the absence or minimal impact of post-thrombotic syndrome.
- A score of 5 to 9 indicates "Meets criteria for mild PTS," suggesting mild post-thrombotic syndrome.
- A score of 10 to 14 indicates "Meets criteria for moderate PTS," suggesting moderate severity of the syndrome.
- A score of 15 or more indicates "Meets criteria for severe PTS," suggesting the most severe form of post-thrombotic syndrome.

After calculating the total score by summing the individual scores, the calculator provides both the numerical score and its interpretation based on the ranges outlined above.

The Villalta score is a clinical calculator used for the diagnosis and severity assessment of post-thrombotic syndrome (PTS), a long-term complication of deep vein thrombosis (DVT). This scoring system is applicable to patients who have had a DVT and are at risk of developing PTS. 

The Villalta score evaluates five patient-reported symptoms (pain, cramps, heaviness, paresthesia, and pruritus) and six clinician-observed signs (edema, skin induration, hyperpigmentation, venous ectasia, redness, and pain during calf compression). Each symptom and sign is scored from 0 (none) to 3 (severe), and the scores are summed to give a total score ranging from 0 to 33. A score of 5 or more confirms the diagnosis of PTS, and higher scores indicate more severe disease.

There are no specific exclusion criteria for the use of the Villalta score, but it may not be applicable or accurate in patients with other conditions that can cause similar symptoms, such as heart failure, lymphedema, or peripheral artery disease. It is also important to note that the Villalta score does not replace clinical judgment and should be used in conjunction with other diagnostic tools and

Villalta score for post-thrombotic syndrome