Radiofrequency Ablation (RFA) is a minimally invasive treatment offered by USA Vein Clinics in Queens to address varicose veins and venous insufficiency. During the procedure, a thin catheter is guided via ultrasound into the damaged vein. Radiofrequency energy heats the vein walls, causing them to collapse and seal shut. Blood flow is then naturally rerouted through healthier veins. RFA varicose veins results often include reduced pain, swelling, and visible veins.