Table 3.
Response of thyroid nodules to radiofrequency ablation (RFA)
| Pre RFA | n | Post RFA | n | P value | |
|---|---|---|---|---|---|
| All Nodules | |||||
| Volume (mL) | 8 (0.4-54.95) | 47 | 1.89 (0.03-36.35) | 47 | < 0.0001 |
| Cosmetic score | 4 (0-4) | 47 | 2 (0-4) | 45 | < 0.0001 |
| NFTNs | |||||
| Volume (mL) | 10.4 (1.96-31.3) | 23 | 2.09 (0.57-30.2) | 23 | < 0.0001 |
| Cosmetic score | 4 (3-4) | 23 | 2 (0-4) | 21 | < 0.0001 |
| TSH (mIU/L) | 1.3 (0.75-3.75) | 13 | 1.3 (0.73-2.7) | 13 | 0.23 |
| Free T4 (ng/dL) | 0.97 (0.8-1.3) | 11 | 0.89 (0.74-1.1) | 11 | 0.02 |
| On levothyroxine, n | 7 | 22 | 7 | 22 | 1 |
| AFTNs | |||||
| Volume (mL) | 5.4 (0.4-54.95) | 24 | 1.7 (0.03-36.35 | 24 | 0.0001 |
| Cosmetic score | 3.5 (0-4) | 24 | 1 (0-3) | 24 | < 0.0001 |
| TSH mIU/L | 0.1 (0.01-0.32) | 12 | 0.63 (0.01-1.2) | 12 | 0.0015 |
| Free T4 (ng/dL) | 1.15 (0.9-1.9) | 12 | 0.9 (0.7-1.8) | 12 | 0.01 |
| On methimazole, n | 8 | 20 | 6 | 20 | 0.74 |
Data are shown as median with minimum and maximum values in parentheses; n = number of patients. Abbreviations: AFTN, autonomous functional thyroid nodule; NFTN, nonfunctional thyroid nodule; T4, thyroxine; TSH, thyroid-stimulating hormone.