Who Is the Ideal Candidate?
VenaBlock® is indicated for patients with symptomatic superficial venous insufficiency due to incompetence of the great saphenous vein (GSV), small saphenous vein (SSV), or anterior accessory saphenous vein (AASV). Ideal candidates include:
- Patients with CEAP C2–C6 disease with confirmed GSV or SSV reflux on duplex ultrasound
- Patients who have avoided treatment due to fear of multiple injections or general anesthesia
- Patients requiring bilateral treatment — VenaBlock®'s minimal anesthetic requirement makes same-session bilateral treatment comfortable
- Patients with occupations or lifestyles incompatible with 2-week compression stocking compliance
- Patients on anticoagulation therapy (with physician guidance)
Vein Diameter and Length Considerations
VenaBlock® is suitable for GSV diameters ranging from 4 mm to approximately 20 mm. For very large-diameter veins (>20 mm), the adhesive may not provide sufficient wall contact for reliable closure, and thermal techniques or surgical ligation may be preferred. Your physician will measure vein diameter at multiple points during the pre-procedure ultrasound assessment.
Contraindications
VenaBlock® is contraindicated in patients with:
- Known allergy or hypersensitivity to cyanoacrylate
- Acute superficial thrombophlebitis in the target vein
- Active deep vein thrombosis in the treated limb
- Severe peripheral arterial disease (ABI <0.5) as the primary pathology
What Your Consultation Will Include
Before recommending VenaBlock®, a vascular specialist will perform:
- Clinical examination: Assessment of varicosity distribution, skin changes, and edema
- Duplex ultrasound: Mapping of reflux sources, vein diameter measurement, and deep vein patency confirmation
- CEAP classification: Grading disease severity to guide treatment intensity
- Allergy screening: Cyanoacrylate sensitivity assessment
A Note on Recurrent Varicose Veins
VenaBlock® can be used in patients with recurrent varicose veins following previous treatment, including prior thermal ablation or surgery, provided anatomy permits safe catheter placement and there is no cyanoacrylate hypersensitivity. Ultrasound guidance is essential in these cases to navigate post-operative anatomical changes.