First- or Second- Class Compression Hosiery After Endovenous Laser With Sclerotherapy and Ambulatory Phlebectomy

Inclusion Criteria: * Age ≥18 years * Varicose veins of the lower extremities (CEAP classification C2-C5) * Varicose disease in the great saphenous vein (GSV) and its tributaries * Planned endovenous laser ablation of the GSV trunk with concomitant combined sclerotherapy and phlebectomy of tributaries * Technical success of intervention (complete ablation of the GSV) * Signed informed consent for study participation Exclusion Criteria: * Primary reflux outside the GSV trunk * History of or acute deep vein thrombosis * Deep vein insufficiency * GSV recanalization post-intervention * Clinical class C6 of chronic venous disease (CVD) according to CEAP classification * Contraindications or limitations for prolonged compression therapy, including but not limited to chronic arterial diseases of the lower extremities (any severity), skin diseases * Pathological conditions of lower limbs causing non-venous pain * Use of vasoactive medications within 1 month before/after surgery * Refusal to participate in the study