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

Table 1 Comparison of general data between the two groups, mean ± SD, n = 40

Group	Gender		ASA		Age (yr)	Body weight (kg)
	Male	Female	Ⅰ	Ⅱ
Observation group	22	18	14	26	56.75 ± 9.80	72.41 ± 10.20
Control group	20	20	16	24	59.58 ± 8.02	70.67 ± 9.40
t/χ2	0.200		0.213		-1.410	0.790
P value	0.654		0.644		0.162	0.432

ASA: American Society of Anesthesiologists.

Table 2 Comparison of recovery agitation between the two groups (mean ± SD, min), n = 40

Group	Eye opening time	Wakefulness time	Incidence of agitation
Observation group	15.52 ± 2.08	22.89 ± 2.38	4 (10.00)
Control group	15.63 ± 1.98	20.22 ± 2.00	12 (30.00)
t/χ2	-0.242	5.432	5.000
P value	0.809	0.001	0.025

Table 3 Comparison of perioperative stress response between the two groups (mean ± SD, nmol/L), n = 40

Index	Group	T0	T2	T3	T4
Cor	Observation group	331.52 ± 42.21	382.02 ± 59.20a,b	369.21 ± 52.85a,b	349.86 ± 53.49a,b
	Control group	340.61 ± 36.22	649.04 ± 48.72a	582.21 ± 59.21a	539.02 ± 48.02a
Glu	Observation group	4.42 ± 0.52	5.84 ± 0.48a,b	6.42 ± 0.22a,b	5.22 ± 0.23a,b
	Control group	4.50 ± 0.62	7.62 ± 0.76a	7.12 ± 0.60a	5.62 ± 0.42a

^aP < 0.05 vs T0 in the same group.

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

Table 4 Comparison of perioperative hemodynamic indexes between the two groups (mean ± SD, mmHg), n = 40

Index	Group	T0	T1	T2	T3	T4
SBP	Observation group	93.33 ± 12.23	87.42 ± 9.21a	82.42 ± 8.54a,b	79.32 ± 12.34a,b	88.32 ± 9.32a,b
	Control group	95.43 ± 12.62	88.31 ± 11.02	110.68 ± 12.85a	108.60 ± 9.33a	102.23 ± 12.35a
DBP	Observation group	51.33 ± 9.61	48.33 ± 8.20a	42.29 ± 10.12a,b	43.33 ± 10.63a,b	46.55 ± 10.57a,b
	Control group	52.06 ± 10.23	49.33 ± 11.42	69.31 ± 9.34a	62.22 ± 9.20a	55.33 ± 10.25a

^aP < 0.05 vs T0 in the same group.

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

SBP: Systolic blood pressure; DBP: Diastolic blood pressure.

Table 5 Comparison of dosage of sedative drugs and opioids between the two groups (mean ± SD), n = 40

Group	Propofol (mg)	Fentanyl (μg)
Observation group	0.45 ± 0.26	0.68 ± 0.23
Control group	1.19 ± 0.24	1.33 ± 0.22
t	-13.227	-12.916
P value	< 0.001	< 0.001

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.