How is radiofrequency ablation (RFA) used to treat venous insufficiency?

Updated: Sep 25, 2020
  • Author: Robert Weiss, MD; Chief Editor: William D James, MD  more...
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RFA is performed by passing a special radiofrequency (RF) catheter from the knee to the groin and then carrying out controlled and preset heating of the targeted vessel until thermal injury causes shrinkage. The process is repeated every 7 cm along the course of the vein. Initial thermal injury is followed by fibrosis of the treated vessel. RFA has been shown to be effective, with a low rate of complications. It has produced excellent results that have been confirmed with up to 10 years of follow-up.

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