| Mg/dl | Midazolam group (N = 50) | Control group (N = 50) | P-value |
| Mean ± SD | Mean ± SD | ||
| Basal (preoperative) | 0.82 ± 0.18 | 0.85 ± 0.29 | 0.617 |
| Twenty-four hours Postoperative | 0.84 ± 0.17 | 0.89 ± 0.42 | 0.456 |
| Forty-eight hours Postoperative | 0.82 ± 0.17 | 0.97 ± 0.60 | 0.089 |