Table 3.
Levels of parathyroid hormone and blood calcium before and after surgery.
| NIRAF group | control | ||
|---|---|---|---|
| mean level of PTH | Preoperative (pg/ml) | 56.91 | 56.70 |
| First postoperative day (pg/ml) | 21.70 | 11.44 | |
| Postoperative/Preoperative(%) | 38.1% | 20.0% | |
| Incidence of temporary parathyroidism (%) | 34.0%(17/50) | 62.0%(31/50) | |
| mean level of serum calcium | Preoperative (mmol/L) | 2.39 | 2.40 |
| First postoperative day (mmol/L) | 2.22 | 2.15 | |
| Incidence of hypocalcemia (%) | 36.0%(18/50) | 60.0%(30/50) | |
| Incidence of symptomatic hypocalcemia(%) | 14.0%(7/50) | 46.0%(23/50) | |