Effect of Oral Antiplatelet or Anticoagulant Drugs on Postoperative Bleeding Risk and Venous Closure Rate in Patients With Lower Extremity Varicose Veins After Radiofrequency Ablation

This observational study aims to assess the effect of oral antiplatelet or anticoagulant drugs on key postoperative outcomes in patients with lower extremity varicose veins who have undergone radiofrequency ablation. Its main objectives are to determine the impact of these medications on postoperative 30-day bleeding risk and postoperative 3-month venous closure rate in this patient population. Researchers will compare three groups-patients receiving oral antiplatelet drugs, those receiving oral anticoagulant drugs, and those not receiving either type of drug-to identify differences in the two key outcomes. Participants will complete baseline data collection (including medical history, medication use, and lower extremity venous assessment) before or shortly after radiofrequency ablation, undergo 30-day postoperative follow-up to evaluate bleeding events (such as minor bleeding or major bleeding requiring medical intervention), receive venous ultrasound at 3 months postoperatively to measure venous closure rate, and report any medication changes or adverse events during the follow-up period.