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ClosureFast™ Procedure

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Experience the ClosureFast™ Procedure


The ClosureFast™ procedure uses radiofrequency energy to precisely and effectively treat patients suffering from Chronic Venous Insufficiency (CVI).

The ClosureFast™ catheter precisely heats a 7 cm vein segment (or 3 cm for shorter, refluxing vein lengths) in one 20-second interval.

  • The system’s controlled feedback mechanism monitors intravascular heat parameters in real time to automatically regulate therapeutic power.
  • The heat provided by the catheter shrinks and collapses the target vein, creating a fibrotic seal and occluding the vessel.


The ClosureFast™ procedure eliminates the need for groin surgery and general anesthesia, and is generally performed using local anesthesia in a vein specialist’s office or an outpatient surgical facility. The procedure takes approximately 45-60 minutes and most patients typically spend two to three hours at the medical facility due to normal pre- and post-treatment procedures.


Studies show that the ClosureFast™ procedure is associated with lower rates of pain, bruising and complications and a faster improvement in patients’ quality of life when compared to 980 nm laser ablation.1  The average patient typically resumes normal activities within a few days following treatment, and most patients report a noticeable improvement in their symptoms within 1-2 weeks after the ClosureFast™ procedure.2*


A prospective, international, multi-center study showed that 91.9% of treated veins were closed 5 years following treatment with the ClosureFast™ procedure.3,4  The study used the Kaplan Meier analysis, a common statistic used for a variety of endpoints, including effectiveness of a treatment over defined period of time.

Clinical & Lifestyle Benefits


Patients treated with the ClosureFast™ Procedure may resume normal activities more quickly than patients who undergo surgical vein stripping or 980 nm laser ablation (see charts below).  With the ClosureFast™ Procedure, the average patient typically resumes normal activities within a few days.1  For a few weeks following the treatment, your vein specialist may recommend a regular walking regimen and suggest you refrain from very strenuous activities (heavy lifting, for example) or prolonged periods of standing.



Most patients report a noticeable improvement in their symptoms within 1-2 weeks following the ClosureFast™ Procedure.  Most patients report limited to no scarring, bruising (ecchymosis), or swelling following the ClosureFast™ Procedure.

PainScore_line_scatter    Ecchymosis_bar



As with all medical procedures, there is a chance that complications may occur, including, but not limited to the following:

  • Hematoma
  • Vessel perforation
  • Thrombosis
  • Pulmonary embolism
  • Phlebitis
  • Infection
  • Adjacent nerve injury
  • Skin burn or discoloration

ClosureFast™ Procedure FAQs

Important Safety Information

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