This randomized, double-blind, parallel clinical trial will compare the clinical and aesthetic outcomes of polidocanol foam sclerotherapy alone versus polidocanol foam associated with long-pulse 1064 nm Nd:YAG transdermal laser in the treatment of lower limb tributary varicose veins. The primary endpoint is venous occlusion rate at 30 days assessed by Doppler ultrasound. Secondary outcomes include cutaneous hyperpigmentation, pain, patient satisfaction, and adverse events.
The study aims to evaluate whether the association of transdermal Nd:YAG 1064 nm laser with polidocanol foam improves venous occlusion and aesthetic outcomes compared to foam alone. Participants will be adult patients with lower limb varicose veins CEAP 1-3 confirmed by Doppler ultrasound. After randomization (1:1), the control group will receive 0.5% polidocanol foam, while the intervention group will receive 0.25% polidocanol foam followed by transdermal laser application. A second session will be performed only if partial occlusion persists at the 30-day follow-up. Assessments will include venous occlusion at 30, 90 and 180 days after the procedure, pigmentation, pain intensity, number of sessions required, patient satisfaction, and adverse events. Standardized photographs will be taken at baseline, 30, 90 and 180 days.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
102
Polidocanol foam prepared using the Tessari method. Concentration 0,5% (Foam Arm) or 0,25% (Foam + Laser Arm), injected under ultrasound guidance.
Long-pulse Nd:YAG 1064 nm transdermal laser applied along the treated vein path immediately after foam injection.
Hospital Universitário Pedro Ernesto - UERJ
Rio de Janeiro, Rio de Janeiro, Brazil
Venous occlusion rate at 30 days
Ultrasound assessment of the treated vein segment 30 days after the first session, defined as complete absence of detectable flow in the treated vein or partial occlusion with significant reduction in reflux and/or venous diameter, and performed by an independent physician who is blinded to group assignment and not involved in the treatment procedures.
Time frame: 30 days after the first session
Venous occlusion rate at 90 days
Ultrasound assessment of the treated vein segment 90 days after the first session, defined as complete occlusion or partial occlusion with improvement inreflux and/or reduction in venous diameter, and performed by an independent physician who is blinded to group assignment and not involved in the treatment procedures.
Time frame: 90 days after the first session
Final venous occlusion rate at 180 days
Ultrasound assessment of the treated vein segment 180 days after the first session, defined as complete absence of detectable flow in the treated vein or partial occlusion with significant reduction in reflux and/or venous diameter, and performed by an independent physician who is blinded to group assignment and not involved in the treatment procedures.
Time frame: 180 days after the first session
Pain intensity immediately after the procedura
Participant-reported pain intensity in the treated limb, measured immediately after the session, using a 10-cm Visual Analog Scale (VAS). Higher scores indicate greater pain.
Time frame: Immediately after the procedure (within 30 minutes)
Hyperpigmentation at the treated site
Skin hyperpigmentation will be assessed by an independent physician blinded to the treatment allocation, using standardizes comparative photographs obtained at baseline, 30 days, 90 days, and 180 days.
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
Time frame: 30, 90, and 180 days after the first session.
Number of treatment sessions required
Total number of sessions needed to achieve venous occlusion according to the study protocol (maximum of two sessions).
Time frame: Up to 90 days after the first session.
Patient-reported aesthetic satisfaction
Patient global assessment of cosmetic improvement using a 5-point Likert scale (from "no improvement" to "complete improvement").
Time frame: Assessed at 90 days after the first session.