Effect of ultrasound-guided lumbar square muscle block on stress response in patients undergoing radical gastric cancer surgery

Table 1 Comparison of plasma inflammatory factor levels before and after treatment between the observation and control groups (X ± s)

		Pro-adrenaline (pg/L)	Cortisol (ng/L)	IL-6 (ng/L)	C-reactive protein (mg/L)
Control group (n = 50)	Before treatment	1.16 ± 0.12	24.55 ± 2.54	36.47 ± 1.64	34.22 ± 1.64
	After treatment	0.88 ± 0.18	21.66 ± 2.16	30.08 ± 1.72	27.84 ± 1.19
Observation group (n = 50)	Before treatment	1.15 ± 0.19	24.51 ± 2.08	36.39 ± 1.66	34.35 ± 1.91
	After treatment	0.51 ± 0.09	17.08 ± 1.52	22.51 ± 1.58	16.78 ± 1.49
t/P		8.682/< 0.001	5.814/< 0.001	18.037/< 0.001	21.122/< 0.001
t/P		20.421/< 0.001	19.347/< 0.001	40.629/< 0.001	48.655/< 0.001
t/P post-treatment inter-group values		12.333/< 0.001	11.632/< 0.001	21.743/< 0.001	38.908/< 0.001

Values are expressed as mean ± SD.

Table 2 Comparison of perioperative indicators between the observation and the control groups (X ± s)

Group	n	Sufentanil dosage (μg)	Post-operative awakening time (min)	Postoperative time in bed (h)	Time taken for anal discharge (h)
Observation group	50	25.56 ± 4.56	14.52 ± 1.72	21.26 ± 3.41	12.26 ± 1.65
Control group	50	71.12 ± 7.45	25.62 ± 2.51	30.23 ± 4.56	20.17 ± 2.36
t value	28.380	20.533	8.861	15.458	0.000
P value	0.000	0.000	0.000

Table 3 Comparison of the incidence of adverse reactions between the observation and the control groups [n (%)]

	Leukopenia	Hepatic impairment	Nausea and vomiting	Bone marrow suppression	Renal impairment	Incidence
Control group (n = 50)	5 (11.11)	3 (6.67)	5 (11.11)	4 (8.89)	7 (15.56)	24 (53.33)
Observation group (n = 50)	2 (4.44)	1 (2.22)	1 (2.22)	1 (2.22)	2 (4.44)	7 (15.56)
χ2						14.221
P value						0.000