What is Radiofrequency Ablation?

Radiofrequency ablation (RFA) is a technique that uses high-frequency electrical energy to generate heat, which destroys cancer cells in the liver.

During the procedure, physicians insert a specialized, thin ablation needle through the skin directly into the tumor under the guidance of ultrasound or computed tomography (CT). The heat generated at the tip of the needle causes tumor necrosis while minimizing damage to the surrounding healthy liver tissue.

Because it is minimally invasive, this method helps reduce pain, allows for faster recovery, and has minimal impact on liver function.

When is RFA indicated?

Radiofrequency ablation is typically indicated for patients with small liver tumors, specifically:

A single tumor measuring less than 5 cm, or Up to three tumors, each measuring no more than 3 cm
This technique is particularly suitable for patients who are not candidates for surgery or who prefer a less invasive treatment option.

In some cases, RFA may be combined with other treatments, such as transarterial chemoembolization (TACE) or systemic therapy, to enhance disease control.

However, RFA is generally not recommended in the following situations:

Tumors larger than 5 cm or more than three tumors
Presence of portal vein thrombosis or distant metastases
Severe liver failure (Child–Pugh class C)
Severe uncontrolled coagulation disorders

Advantages of RFA

Compared with other treatment methods, radiofrequency ablation offers several notable advantages:

Minimally invasive, reducing pain and discomfort for patients
Rapid recovery with a shorter hospital stay
Maximum preservation of healthy liver tissue
High effectiveness for small liver tumors, particularly HCC lesions ≤ 2 cm
Most patients may experience only mild symptoms after the procedure, such as slight pain in the liver area or a transient fever. Serious complications are uncommon when the procedure is performed according to appropriate indications and standardized protocols.