Table 5.
Changes of Calcium, Phosphorus and Parathormone During the Perioperative Period
| Variables | Group A (n=24) | Group B (n=24) |
|---|---|---|
| Calcium (mmol/L) Pre | 2.59±0.21 | 2.54±0.28 |
| Day 1 | 2.27±0.37 | 2.04±0.41 |
| Day 2 | 2.00±0.41 | 1.97±0.44 |
| Reduction Rate | 0.12±0.03* | 0.20±0.03 |
| Po-hypocalcemia | 10 (42%) | 10 (42%) |
| Phosphorus (mmol/L) | ||
| Pre | 1.91±0.70 | 1.93±0.65 |
| Day 1 | 1.59±0.61 | 1.44±0.54 |
| Day 2 | 1. 19±0.39 | 1.16±0.34 |
| Reduction Rate | 0.14±0.06 | 0.21±0.05 |
| Parathormone (pg/mL) | ||
| Pre | 1428.38±201.87 | 1571.33±208.53 |
| Oper | 308.80±42.43# | 234.53±33.71# |
| Day 1 | 33.19±8.52 | 52.22±14.22 |
| Day 2 | 26.84±11.66 | 39.12±13.55 |
| Reduction Rate | 0.96±0.01 | 0.95±0.02 |
Notes: Values are mean±SD or numbers with percentage. #Indicates that P<0.05 compared to the preoperative baseline level. Reduction rate= (day 1- pre)/pre, *Indicates that P=0.078 compared to Group B.
Abbreviations: Pre, preoperative baseline level; Oper, 30min after the dissection of parathyroids; Po-hypocalcemia, post operative hypocalcemia on day 1.