Table 1.
Demographics and surgical characteristics of children
| Group R | Group L | P-value | |
|---|---|---|---|
| Age (years) | 5.03 ± 2.5 | 4.92 ± 2.3 | 0.77 |
| Height (cm) | 108.4 ± 15.9 | 106.4 ± 15.3 | 0.49 |
| Body weight (kg) | 19.0 ± 7.0 | 18.1 ± 5.7 | 0.48 |
| Sex, Male:Female (number of patients) | 18:20 | 16:22 | 0.57 |
| Surgery | |||
| Duration of anesthesia (min)* | 83.3 ± 23.7 | 73.1 ± 18.9 | 0.04 |
| Surgical duration (min) | 42.3 ± 14.9 | 42.8 ± 18.3 | 0.91 |
| Duration from the end of general anesthesia to exit from the operation room (min)** | 14.6 ± 7.8 | 14.4 ± 5.0 | 0.88 |
| The number of patients with additional drugs | 0.89 | ||
| Face scale score at 2 h after surgery, 0–1 | 20 | 18 | |
| Face scale score at 2 h after surgery, 2–3 | 17 | 19 | |
| Face scale score at 2 h after surgery, 4–5 | 1 | 1 | |
| The total amount of perioperative acetaminophen (mg/4 h)*** | 378.9 | 377.6 |
Group R: Ultrasound-guided rectus sheath block. Group L: Local anesthetic infiltration of the surgical field
*Time from the initiation of oxygenation to extubation. **Extubation marked the end of general anesthesia.
***4 h after leaving OR
Data are expressed as means ± standard deviations (n = 38)
The statistical significance of differences between the two groups was assessed using two-tailed t-tests (differences in sex were assessed using a chi-square test).