Radiofrequency Ablation

When do surgeons do RFA?

In the U.S., RFA therapy has become the ablation (tissue destruction) therapy of choice among surgeons for treating liver cancer (HCC). The surgeon can perform this procedure laparoscopically (through small holes in the abdomen) or during open exploration of the abdomen. In some instances, the procedure can be done without opening the abdomen by just using ultrasound for visual guidance.

How is RFA done and how does it work?

In RFA, heat is generated locally by a high frequency, alternating current that flows from the electrodes. A probe is inserted into the center of the tumor and the non-insulated electrodes, which are shaped like prongs, are projected into the tumor. The local heat that is generated melts the tissue (coagulative necrosis) that is adjacent to the probe. The probe is left in place for about 10 to 15 minutes. The whole procedure is monitored visually by ultrasound scanning.

What size tumor is treated by RFA?

The ideal size of an HCC tumor for RFA is less than 3 cm. Larger tumors may require more than one session.

What is the benefit of RFA therapy?

This treatment should be viewed as palliative (providing some relief), but not curative.

To read more about Hepatocellular Carcinoma (HCC), please read the MedicineNet.com Liver Cancer (Hepatocellular Carcinoma) article.

Medical Author: Tse-Ling Fong, M.D.
Medical Editor: Leslie J. Schoenfield, M.D., Ph.D.