TABLE 1.
Demographics of 70 patients and risk factors
| Gender | Male | Female | |
|---|---|---|---|
| Number | 22 | 48 | |
| Age at diagnosis of PTC (yr) | Median 35 (15–71) | ||
| Age at first neck reexploration (yr) | Median 41 (18–73) | ||
| Time from thyroidectomy to first neck reexploration (yr) | Median 3 (<1–24) | ||
| Age 40 yr or younger | 10 | 38 | |
| Age older than 40 yr | 12 | 10 | |
| Stage I at thyroidectomy1 | 17 | 43 | |
| Stage III at thyroidectomy1 | 5 | 5 | |
| Tumor size less than 4 cm | 18 | 43 | |
| Tumor size greate than 4 cm | 2 | 2 | |
| Tumor size unknown | 2 | 3 | |
| Capsule invasion | 13 | 29 | |
| Capsule invasion unknown | 0 | 4 | |
| No capsule invasion | 9 | 15 | |
| Positive LN at thyroidectomy | 15 | 37 | |
| Normal LN at thyroidectomy | 6 | 10 | |
| Not known | 1 | 1 | |
| Preoperative radioactive iodine (mCi) | Median 217 (29–995) | ||
| Post-RO THW stimulated TSH | Median 59.5 (13.9–332) | ||
| Post-RO rhTSH stimulated TSH2 | Median 13.4 (1.2–88) | ||
RO, Reoperation; LN, lymph node.
1
Staging classification published elsewhere (20 ).
2
Seventy-two hours after the second rhTSH injection.