Clinical Outcomes, Safety, and Cost-Effectiveness Analysis of Two Catheters (Xianrui Da and Medtronic) in Radiofrequency Ablation for Varicose Veins

"1. Surgical Procedures: Standardized radiofrequency ablation (GSV/SSV closure) was carried out in both groups by the same team. Catheter parameters were set as 120°C and 1 cm/min withdrawal speed. The treatment segment of the great saphenous vein was required to be \>1 cm from the skin before anesthesia. For calf varicose veins, treatment was done after great saphenous vein ablation.~ * Experimental Group: Utilized Xianruida's catheter with advanced features. Surgical and device - related information was recorded.~ * Control Group: Used Medtronic's catheter. Similar data were recorded as in the experimental group.~2. Postoperative Management: Consistent for both groups.~ * Compression: Applied elastic bandage + Class II compression stockings.~ * Medication: Patients took oral anticoagulants and painkillers as needed, with usage details recorded during follow - up."