Table 2.
Intraoperative presentations of patients who underwent knee arthroscopic surgery under bispectral index-guided sevoflurane anesthesia without adductor canal block (ACB) (Group A), with preoperative ACB (Group B), and with postoperative ACB (Group C).
| Group A (n = 128) |
Group B (n = 69) |
Group C (n = 18) |
p Value | |
|---|---|---|---|---|
| Mean sevoflurane concentration (%) in 1st hour | 2.50 (2.20–2.90) | 2.20 (1.9–2.7) | 2.65(2.50–2.80) | 0.004 |
| Sevoflurane consumption (ml/kg/h) |
0.22 (0.18–0.27) | 0.19 (0.15–0.25) | 0.22 (0.21–0.26) | 0.005 |
| Intraoperative fluid given (ml/kg) | 2.26 (1.74–2.80) | 2.08 (1.74–2.47) | 1.97 (1.71–2.40) | 0.175 |
| Baseline systolic blood pressure (mmHg) | 136 (124–153) | 142 (130–155) | 134 (119–146) | 0.477 |
| Patients with intraoperative hypertensive response | 33 (25.8%) | 8 (11.6%) | 5 (27.8%) | 0.042 |
| Intraoperative opioid consumption (MME) | 0.10 (0.08–0.13) | 0.08 (0.06–0.11) | 0.09 (0.07–0.12) | 0.001 |
Numeric values are expressed as median (IQR) or numbers (%). MME, morphine milligram equivalent.