The Influence of Laser Crossectomy With Different Wavelengths on Varicose Vein Progression

Inclusion Criteria: * Age \>18 years * Primary VVs of Clinical Etiology Anatomy Pathophysiology (CEAP) clinical class of C2-C6 * Reflux along the GSV trunk lasting \>0.5 sec. * GSV trunk diameter ≤12 mm * Informed consent to participate in the study Exclusion Criteria: * Primary reflux outside the GSV trunk (including combined reflux) * History of deep or superficial vein thrombosis * Deep vein reflux * Non-thrombotic or post-thrombotic venous obstruction * Pelvic venous insufficiency * Use of oral anticoagulants * Indication for pharmacological prophylaxis after EVLT * Inability to use radial fiber of 1.4-1.57 mm at the surgeon's discretion * Refusal to participate in the study