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

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.