A comparative study between ultrasound-guided serratus anterior plane block and conventional IV analgesics for post-operative pain management in modified radical mastectomy

Ain-Shams Journal of Anesthesiology

Table 4 Comparison between groups as regards visual analog score

Visual analog score	SAPB group (n = 20)	Control group (n = 20)	Mann-Whitney test
Visual analog score	SAPB group (n = 20)	Control group (n = 20)	z	p value
0 h	1 (1–1)	2.5 (2–3)	4.6	< 0.001
2 h	2 (2–2.5)	4.5 (4–5)	3.6	< 0.001
4 h	2 (1–3)	3.5 (3–4)	3.9	< 0.001
8 h	1.5 (1–2)	2 (2–2.5)	2.5	0.01
12 h	2 (2–4)	3 (2.5–3.5)	1.57	0.12
24 h	2 (1.5–3)	2 (2–2)	0.6	0.54

Data expressed as range, median; IQR Inter-quartile range, z Mann-Whitney test, SAPB Serratus anterior plane block