Is leg compression needed after heat treatment of varicose veins?

INTERVENTION: 1. Compression after radiofrequency ablation of lower limb varicose veins 2. No compression after radiofrequency ablation of lower limb varicose veins CONDITION: Varicose veins ; Circulatory System ; Varicose veins PRIMARY OUTCOME: Successful obliteration of target vein, assessed with duplex ultrasound scan at 12–14 weeks SECONDARY OUTCOME: 1. Quality of life, assessed with the Aberdeen Varicose Vein Severity Score and the Venous Clinical Severity Score at baseline (on the day of surgery) and at 12 weeks; 2. Complications: recorded during patients' follow‐up or emergency admissions, including any problems specifically related to stockings from the first post‐operative day to 12 weeks; 3. Patient's satisfaction, assessed with a patient satisfaction questionnaire; 4. Pain, measured with the Visual Analogue Scale questionnaire; completed by the patient during the first post‐operative week and collected at the 2 week review; 5. Return to normal activities: information obtained by direct questioning at the 2 week interview and reconfirmed at 12 weeks INCLUSION CRITERIA: 1. Age 18–90 years old 2. C2 to C6 disease and referred to clinics at Royal Bolton Hospital (UK) 3. Veins anatomically suitable for endothermal ablation