Table 2.
Comparison of optic nerve sheath diameter (mm, x̅ ± sd)
| Group | T1 | T2 | T3 | T4 | T5 |
|---|---|---|---|---|---|
| Dexmedetomidine group (n=45) | 4.63±0.14 | 4.77±0.14a,b | 5.19±0.15a,b | 5.10±0.11a,b | 4.71±0.12a,b |
| Control group (n=45) | 4.61±0.11 | 4.98±0.13a | 5.53±0.14a | 5.27±0.13a | 4.84±0.16a |
Note: Compared with T1;
a
P<0.05.
Compared with control group;
b
P<0.05.
T1: 5 min before induction of anesthesia in recumbent position, T2: 5 min after CO2 pneumoperitoneum in Trendelenburg position, T3: 30 min after CO2 pneumoperitoneum in Trendelenburg position, T4: 60 min after CO2 pneumoperitoneum in Trendelenburg position, T5: 5 min after the close of pneumoperitoneum in recumbent position.