Research Article

Impact of the Timing of Rocuronium Injection after Propofol Administration on Temporal Summation of Pain in Gynecologic Laparoscopic Surgery: A Prospective and Controlled Study

Table 2

Perioperative data.

PRi group (n = 48)PRd group (n = 47) value

Basal BIS95.1 ± 2.795.1 ± 2.80.99
BIS immediately after propofol injection94.9 ± 2.295.0 ± 1.70.96
Average BIS less than 6057.7 ± 1.757.7 ± 2.20.96
Time to get BIS less than 60 (sec)28.4 ± 5.035.1 ± 4.90.00
The incidence of propofol injection pain25 (52.1)26 (55.3)0.75
VAS for propofol injection pain35.6 ± 12.636.9 ± 14.10.70
The grade of rocuronium-induced withdrawal movement0.019
1 (no withdrawal)15 (31.3)26 (55.3)
2 (wrist withdrawal)0 (0)0 (0)
3 (arm only)22 (45.8)18 (38.3)
4 (generalized movement)11 (22.9)3 (6.4)
VAS for pain at 1 hr after surgery43.5 ± 11.942.1 ± 9.80.53
VAS for pain at 24 hr after surgery35.4 ± 12.032.6 ± 8.50.18
VAS for pain at 48 h after surgery24.4 ± 10.121.7 ± 7.00.14
PCA opioid consumption at 24 h after surgery52.7 ± 4.051.6 ± 3.80.14
PCA opioid consumption at 48 h after surgery50.5 ± 2.849.8 ± 2.20.20
Total PCA opioid consumption for 48 h after surgery103.1 ± 6.3100.3 ± 9.50.10
Rescue analgesics0.30
Ketorolac19 (39.6)25 (53.2)
Fentanyl26 (54.2)18 (38.3)
Complications on vein
Tenderness3 (6.3)1 (2.1)0.32
Redness4 (6.3)2 (4.3)0.41
Hardness1 (2.1)0 (0)0.32
Tenderness and hardness1 (2.1)0 (0)0.32
Recall
Pain/respiratory difficulty5 (10.4)/0 (0)4 (8.5)/0 (0)0.75

Values are expressed as mean ± SD or numbers (%). PCA, patient-controlled analgesia; VAS, visual analog scale.