Ultrasound-guided serratus anterior plane block enhances postoperative analgesia and recovery in thoracoscopic surgery

Table 6 Comparison of postoperative pain between the two groups (mean ± SD, point), n = 40

Group	2 h after operation	8 h after operation	24 h after operation	48 h after operation
Observation group	4.33 ± 1.26	2.46 ± 0.54a,b	2.13 ± 0.23a,b	1.45 ± 0.32a,b
Control group	4.39 ± 1.22	3.85 ± 0.41a	3.33 ± 0.22a	2.22 ± 0.33a
Finteraction, Pinteraction	12.966/< 0.001
Fintergroup, Pintergroup	111.895/< 0.001
Ftime, Ptime	265.379/< 0.001

^aP < 0.05 vs the same group 2 h after operation.

^bP < 0.05 vs a control group at the same time.