chronic venous insufficiency (CVI)
Conditions
Interventions
Case series:None
Sponsors
Beijing Hospital
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: Patients with chronic venous insufficiency of unilateral lower extremity clinically diagnosed and ready for surgery or treatment. Clinical diagnosis of unilateral lower limb chronic venous insufficiency: one side of the lower limb vein is normal (can be accompanied by subclinical reflux, reflux time 1s; 2. Great saphenous vein valve dysfunction, reflux time > 1s; 3. Varicose veins, swelling and pigmentation of lower extremities, with or without venous ulcers of lower extremities (C2-C6); 4. Thrombus in deep venous system of lower extremities (femoral and popliteal veins) (acute stage).
Exclusion criteria
Exclusion criteria: 1. Moderate to severe stenosis and occlusion of either lower limb artery on both sides; 2. Patients with arteriovenous fistula or venous malformation in either lower limb; 3. Patients who have had any previous lower limb artery surgery, such as arterial bypass surgery, arterial balloon dilatation surgery, stent implantation, etc. (including but not limited to the above); 4. Previous lower limb vein treatment or surgery, such as other parts of the bypass through lower limb vein sampling, lower limb venous thrombolysis/thrombolysis (including but not limited to the above); 5. History of lower limb arteriovenous trauma or surgical history involving arteriovenous injury; 6. Allergy to contrast media; 7. Do not agree to participate in the examination and do not sign informed consent.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| time intensity curve;elastic modulus;shear wave velocity; | — |
Secondary
| Measure | Time frame |
|---|---|
| reflux time; | — |
Countries
China
Contacts
Public ContactLiu Zhiwen
Beijing Hospital
Outcome results
None listed