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Find relief from vein disease with the ClosureFast™ Procedure.

ClosureFast™ Procedure

Legs before and 6 weeks after  ClosureFast™ procedure

Individual results may vary.

Images courtesy of Dr. Jonathan Calure.

Thermal vein closure

The ClosureFast™ procedure uses radiofrequency energy or heat to close the diseased vein, which redirects blood flow to healthy veins, relieving symptoms.

The traditional treatment

  • Minimally invasive outpatient procedure
  • Local anesthesia along various points of the leg
  • Less pain and bruising than laser treatment1
  • Faster recovery time than laser treatment1
  • Compression stockings needed for at least one week after procedure2

Over 2 million patients have been treated with the ClosureFast™ procedure in over 100 countries around the world.


The ClosureFastTM procedure is performed on an outpatient basis.

  • Using ultrasound, your physician will position the catheter into the diseased vein through a small opening in the skin.
  • The small catheter delivers heat to the vein wall, causing it to shrink and the vein to seal closed.
  • Once the diseased vein is closed, blood will reroute itself to other healthy veins.
Closurefast Procedure

Following the procedure, a simple bandage is placed over the insertion site, and additional compression may be provided to aid healing. Your doctor may encourage you to walk, and to refrain from extended standing and strenuous activities for a period of time. The average patient typically resumes normal activities within a few days.1

Venous reflux: how it's treated - (02:31)

Learn more about our treatments for varicose veins.
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Information on this site should not be used as a substitute for talking with your doctor. Always talk with your doctor about diagnosis and treatment information.


Almeida JI, et al. Radiofrequency endovenous ClosureFAST versus laser ablation for the treatment of great saphenous reflux: A multicenter, single-blinded, randomized study (RECOVERY Study). J Vasc Interv Radiol. 2009 Jun;20(6):752-9.


Proebstle TM, Alm BJ, Göckeritz O, et al. Five-year results from the prospective European multicentre cohort study on radiofrequency segmental thermal ablation for incompetent great saphenous veins. Br J Surg. February 2015;102(3):212-218.