Ultrasound-guided erector spine plane block (ESPB) utilization in managing refractory renal colic pain in the emergency department

Mehdi Torabi, Javad Darijani, Moghaddameh Mirzaee, Amin Honarmand

Table 1. Comparison of basic characteristics and pain intensity changes in different time between ESPB and fentanyl groups

Variables	Fentanyl group	ESPB group	P-value
Age, years, mean±SD	34.75±6.21	38.20±6.85	0.92
Gender, n (%)
Male	12 (60)	14 (70)	0.70
Female	8 (40)	6 (30)
NRS, mean±SD
Initial	8.55±1.27	8.60±1.09	0.59
NRS 30^th min	3.25±1.60	1.30±1.03	<0.01
NRS 60^th min	4.55±0.88	2.20±0.83	<0.01