Analgesic efficacy of an opioid-free postoperative pain management strategy versus a conventional opioid-based strategy following laparoscopic radical gastrectomy: an open-label, randomized, controlled, non-inferiority trial

Table 3 NRS and number of patients who required rescue analgesia

Characteristic	C-STAPB group (n = 46)	Conventional group (n = 49)	P value
NRS at rest			0.80^*
NRS-PACU	1.33 ± 0.60	1.27 ± 0.45	0.12
NRS-24 h	0.89 ± 0.38	0.84 ± 0.37	0.47
NRS-48 h	0.17 ± 0.38	0.18 ± 0.39	0.81
NRS at movement			0.25^*
NRS-PACU	2.44 ± 0.66	2.33 ± 0.75	0.27
NRS-24 h	1.85 ± 0.82	1.71 ± 0.74	0.45
NRS-48 h	1.17 ± 0.44	1.10 ± 0.31	0.06
Number of patients who required rescue analgesia n (%)
PACU-24 h	42 (91.3)	41 (83.7)	0.42
24–48 h	32 (69.6)	33 (67.3)	0.82
48–72 h	27 (58.7)	24 (49.0)	0.34

^*P-value between groups using repeated measures analysis of variance
NRS numeric rating scale, C-STAPB continuous transversus abdominis plane block, PACU post-anesthesia care unit

ISSN: 1477-7819