By Dr. Laureano Giraldez-Rodriguez, MD, FACS
One of the questions patients with benign thyroid nodules ask me most often is: should I have surgery, or is there another option? More and more, the answer includes radiofrequency ablation (RFA). Today I want to give you a detailed comparison of both options so you can make the most informed decision possible.
What is thyroid radiofrequency ablation?
RFA is a minimally invasive procedure that uses radiofrequency energy, which is essentially controlled heat, to shrink benign thyroid nodules. It’s performed with a special needle inserted directly into the nodule under ultrasound guidance. The thermal energy gradually destroys the nodule tissue, which the body then reabsorbs over the following months.
The procedure is done under local anesthesia, in the office or at an outpatient center, and typically takes 20 to 40 minutes depending on the size of the nodule. The patient stays awake and can communicate with the team throughout the procedure.
Traditional surgery: lobectomy or thyroidectomy
Thyroid surgery, whether it removes one lobe (lobectomy) or the entire gland (total thyroidectomy), has been the standard treatment for decades. It’s performed under general anesthesia in the operating room, requires an incision in the neck, and typically involves a 1- to 2-day hospital stay.
Surgery completely removes the nodule or the affected gland and also provides tissue for a definitive pathological analysis. It’s the indicated treatment for nodules that are malignant or suspected to be malignant.
Direct comparison: point by point
When it comes to appropriate candidates, RFA is indicated for biopsy-confirmed benign thyroid nodules that cause symptoms such as pressure, difficulty swallowing, or cosmetic concerns. Surgery is appropriate for symptomatic benign nodules, malignant nodules, nodules with indeterminate biopsy results, and cases where a definitive histological diagnosis is needed.
As for the procedure itself, RFA uses local anesthesia, takes 20 to 40 minutes, requires no hospitalization, and leaves a minimal puncture mark that fades. Surgery requires general anesthesia, takes 1 to 3 hours, involves a hospital stay, and leaves a 3- to 6-centimeter scar on the neck that, while usually well concealed, is permanent.
In terms of reduction results, RFA typically shrinks nodule volume by 50% to 80% over the 6 to 12 months after the procedure. Surgery removes the nodule or gland entirely, with an immediate and definitive result.
Recovery from RFA is quick: most patients return to normal activities within 1 to 2 days. Surgical recovery takes 2 to 4 weeks before full activity.
As for thyroid function, RFA preserves the thyroid gland and its function, so most patients don’t need hormone replacement medication. After a lobectomy, about 20% to 30% of patients need hormone replacement. After a total thyroidectomy, 100% need levothyroxine for life.
Risks and complications
RFA generally has a favorable risk profile. The most common complications are mild pain during or after the procedure, bruising at the puncture site and, rarely, a temporary change in voice if the nodule sits very close to the recurrent laryngeal nerve. Serious complications are uncommon.
The risks of surgery include injury to the recurrent laryngeal nerve, which can affect the voice temporarily or permanently; temporary or permanent hypoparathyroidism, which affects calcium levels; post-surgical hematoma; surgical wound infection; and the risks associated with general anesthesia.
When do I recommend RFA, and when do I recommend surgery?
In my practice, I recommend RFA when the nodule is benign and confirmed by at least 2 biopsies, when it causes compressive symptoms or cosmetic concerns, when the patient prefers to avoid surgery and general anesthesia, and when the nodule’s anatomy is favorable for the procedure.
I recommend surgery when malignancy is suspected or confirmed, when the biopsy is indeterminate and a histological diagnosis is needed, when there are extensive multinodular goiters, when hyperthyroidism doesn’t respond to other treatments, and when the nodule has features that make RFA technically difficult.
My perspective as a specialist who offers both options
One of the advantages of being a center that offers both surgery and RFA is that we have no built-in bias toward either option. My recommendation is always based on what’s best for each individual patient, taking into account their anatomy, diagnoses, preferences, and lifestyle.
What matters most is having an open, honest conversation. There’s no single option that’s perfect for everyone. There’s the right option for you, and finding it takes an informed dialogue between doctor and patient.
