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The radiofrequency thermal ablation technique called VNUS Closure was approved in 1999 by the Food and Drug Administration but was improved tremendously with the introduction of a new device in 2007 which is inserted into the vein and heats the vein in a very controlled fashion with high frequency radio waves. The local anesthetic solution injected around the vein which absorbs heat and the computer control of the device protect surrounding tissue from overheating. The newer device by VNUS has been called called the ClosureFast™ catheter. VNUS recently changed the name for marketing reasons to Venefit™, and both names will be encountered for some time to come.
We prefer to treat with the ClosureFast™ (Venefit™) device in most cases since patients have minimal discomfort after the procedure. Most patients need only nonsteroidal anti-inflammatory drugs such as naproxen (Naprosyn™, Aleve™) or ibuprofen (Advil™, Motrin™) for pain control after the procedure.The results of treatment with the Venefit™ radiofrequency catheter and LASER are equal, greater than 99% success in closure of the treated vein.
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