ClosureFast™ an endovenous radiofrequency ablation (RFA) procedure

for the backward flow of blood (or “Venous reflux”) in your saphenous vein(s). The great saphenous veins and small saphenous veins are the two main superficial veins of the leg. They run along the inner leg and the back of the leg, respectively.

This minimally invasive procedure can be performed in the office in less than an hour and patients usually return to their usual level of activity the same day.

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The skin is numbed with lidocaine, then a tiny wire and the Closurefast® catheter are inserted into the vein.  The catheter delivers radio-frequency energy to the vein wall, causing it to seal shut.  The remaining healthy veins continue to bring blood back to the heart.


The procedure is performed with local anesthesia, but many patients elect to use a mild oral sedative (Valium), which is taken after checking in and

Diagram of endovenous laser ablation (EVLA) procedure

Diagram of endovenous laser ablation (EVLA) procedure

completing all paperwork.  You will change into a gown and leave underwear on.  Depending on the vein to be treated, you will lay on your back or on your belly.  We do our best to make special accommodations (for example, if you cannot lie flat or cannot bend a knee very well) with body positioning and using pillows.  We will do our best to make you comfortable.  Then, we will give you the option of watching a movie on Netflix or listen to music.  Once you are comfortable, you leg (s) will be prepped with cleansing solution for the sterile procedure.  The doctor will perform an ultrasound to map the vein (s) to be treated.  Then, a numbing agent (lidocaine) will be injected into the skin. In the numb area of the skin, a tiny puncture is made to pass the radiofrequency catheter.  Your doctor will then use a needle to administer a combination of cool saline and local anesthetic around the vein either in the thigh or calf (depending on which vein is treated).  This solution numbs the vein and insulates it from the surrounding tissue.  After the numbing solution is applied, the vein is painlessly treated with radiofrequency energy.

Once your vein has been treated, we will clean your leg and apply a compression stocking which you will wear for 72 hours continuously.  You will walk for 30 minutes prior to getting in your car.

The video below show the proceedure.  Other videos of our treatments are on our YouTube channel.   After care instructions can be found on our website.



Wonderful!! Dr. Bunke and staff are absolutely the best!!

The office is the perfect combination of professionalism, kindness, efficiency, empathy and expert medical treatment and care.

Dr. Bunke is kind, friendly and so knowledgeable that you feel very comfortable that you will receive excellent treatment.

Rosemary P.

Dr. Lucas and her staff are incredible. They were so kind and nurturing while I was having the vein procedures. Highly recommend

Lauren G.

Extremely happy with every aspect of my experience here. Dr. Lucas was completely professional and my radio frequency ablation procedure was a complete success. So incredibly happy with my results.

R. W.

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