ClosureFast radiofrequency ablation.
The gold-standard minimally invasive treatment for varicose veins and venous reflux — performed through a single puncture under local anesthesia, with the only RFA system that has published long-term clinical data.
- OUTPATIENT
- 45–60 MIN
- TUMESCENT ANESTHESIA
- NO INCISIONS
- NO OVERNIGHT STAY
- INSURANCE COVERED
Closing failed veins with controlled heat
ClosureFast™ is a radiofrequency ablation (RFA) procedure that uses a thin, disposable catheter to deliver precisely-controlled heat to the inside of a diseased vein. The vein wall responds by contracting and sealing closed — and your body reroutes blood through healthy veins nearby.
It's the most extensively studied endovenous closure procedure available, with published five-year clinical data backing its durability. Most patients walk in, have the procedure under local anesthesia in under an hour, and walk back out the same day.
The only radiofrequency ablation system with published long-term clinical data on its outcomes.
See the procedure
A short medical animation showing how the ClosureFast catheter delivers radiofrequency energy to close the failed vein from the inside.
The procedure, step by step
Comfort + safety
Before the radiofrequency catheter is activated, a dilute local anesthetic is injected around the vein. This serves three purposes: it numbs the area completely, it physically compresses the vein to maximize contact with the catheter, and it absorbs heat away from surrounding tissue.
You stay awake and comfortable throughout. No general anesthesia, no breathing tube, no overnight stay.
A purpose-built RFA system
The ClosureFast catheter and RFG3 generator are engineered specifically for venous closure. The system delivers radiofrequency energy in precisely-controlled 7-second cycles, maintaining the vein wall at the optimal closure temperature without overshooting.
Real-time temperature feedback ensures consistent, reliable closure along the entire treated segment — which is a major reason for the procedure's long-term durability.
From walk-in to walk-out
Plan on about an hour in the office. The procedure itself usually takes 30 to 45 minutes once you're prepped. We ask that someone drive you home, though most patients feel ready to drive themselves the next day.
Compression stockings are worn for about a week afterward to support healing. Mild soreness or bruising along the treated vein is normal and fades over 1–2 weeks. Symptoms — heaviness, aching, restless legs — typically begin improving within days.
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