Chronic venous insufficiency (CVI) in postthrombotic syndrome can be classified as follows.
According to Widmer et al, three stages are distinguished
Widmer stage | Description |
I | |
II | Persistent swelling of the legs (= lower leg edema) with changes in the skin such as:
|
III |
|
Villalta score for clinical classification of postthrombotic syndrome (PTS).
Subjective symptoms/morphological changes | None | Mild | Medium | Heavy |
Subjective symptoms | ||||
Pain | 0 points | 1 point | 2 points | 3 points |
Cramps | 0 points | 1 point | 2 points | 3 points |
Feeling of heaviness | 0 points | 1 point | 2 points | 3 points |
Paresthesias (paraesthesia) | 0 points | 1 point | 2 points | 3 points |
Morphological changes | ||||
Edema (swelling; water retention) | 0 points | 1 point | 2 points | 3 points |
Induration (hardening) | 0 points | 1 point | 2 points | 3 points |
Paresthesias (paraesthesia) | 0 points | 1 point | 2 points | 3 points |
Pigmentation | 0 points | 1 point | 2 points | 3 points |
Redness | 0 points | 1 point | 2 points | 3 points |
Pain during calf compression | 0 points | 1 point | 2 points | 3 points |
Venous ectasia (sac-like dilatation of veins). | 0 points | 1 point | 2 points | 3 points |
Presence of a leg ulcer (ulcer of the lower leg) | Yes/No |
Villalta score evaluation
Score | Score |
0-4 | No PTS |
5-9 | Mild PTS |
10-14 | Moderate PTS |
14 or leg ulcer | Severe PTS |