The goal of this clinical trial is to compare two surgical approaches for treating varicose veins in the lower limbs in adults: performing varicose vein removal at the same time as great saphenous vein stripping (concomitant) versus performing great saphenous vein treatment alone.

The main questions it aims to answer are:

• Do clinical outcomes differ between these approaches?
• Does quality of life improve differently depending on which surgical approach is used?

Participants will:

• Undergo great saphenous vein stripping for lower limb varicose veins with or without simultaneous varicose vein ressection
• Be assigned to have varicose vein resection either at the same time or in a subsequent procedure
• Complete quality of life assessments before and after surgery

Inclusion Criteria:

• Age between 18 and 70 years
• Varicose veins of the lower limbs with great saphenous vein insufficiency and surgical indication (CEAP C2-C6)
• Signed informed consent

Exclusion Criteria:

• Concomitant small saphenous vein insufficiency in the treated limb
• Previous deep vein thrombosis in the treated limb
• Previous deep venous insufficiency in the treated limb
• Previous varicose vein surgery
• Previous venous interventions (e.g. foam sclerotherapy)
• Comorbidity or condition that impairs postoperative assessment (e.g. orthopedic diseases of the lower limbs)

De-identified individual participant data collected during the study may be available to other researchers upon reasonable request. Researchers may request access to de-identified IPD by contacting the corresponding author. Requests will be evaluated by the principal investigator.

Available upon manuscript publication and for 3 years thereafter.

De-identified individual participant data and supporting information will be available to researchers upon reasonable request. Requests should be directed to the corresponding author (fsoaresportela@gmail.com) and will be reviewed by the principal investigator.