| | PTS Scale | Criteria used to diagnose PTS | Comments |
| | Ginsberg et al. [34] | Pain and swelling of limb > 1 month duration, typical character (worse at end of day or with prolonged sitting/standing, better after night’s rest and leg elevation) that occurs ≥ 6 months after acute DVT
AND
Objective evidence of valvular incompetence (diagnosed via plethysmography or venous Doppler):
(i) if both criteria are present, PTS is diagnosed,
(ii) Global Rating Questionnaire used to rate overall improvement or
worsening of PTS over time | Developed specifically for PTS; does not rate the severity of PTS |
| | Villalta et al. [35] | 5 Symptoms (pain, cramps, heaviness, pruritus, paresthesia)
6 signs (edema, skin induration, hyperpigmentation, ectasia, redness, pain during calf compression)
Each rated as 0 (absent), 1 (mild), 2 (moderate) or 3 (Severe)
Points are summed. A total score of
0–4: No PTS
5–14: Mild/Moderate PTS
≥15, or presence of ulcer: Severe PTS | Developed specifically for PTS; rates the severity of PTS |
| | CEAP Classification* [36, 37] | Patients with chronic venous disease classified into 1 of 7 clinical classes (Class 0–6) according to the presence of clinical signs. Each class may include signs present in lower-order class.
Class†:
(0) Symptoms only; no visible or palpable signs of venous disease
(1) Telangiectasias, reticular veins, malleolar flare
(2) Varicose veins
(3) Edema, no skin changes
(4) Skin changes (e.g., pigmentation, eczema, lipodermatosclerosis)
(5) Skin changes with healed ulcer
(6) Skin changes with active ulcer
Each clinical class is then subclassified as to:
Etiology (congenital, primary, secondary)
Anatomy (superficial, deep, perforator veins)
Pathophysiology (reflux, obstruction, both) | Was developed for chronic venous disease in general and not for PTS; does not rate the severity of PTS |
|
|
