Relationships between the Spinal Dural Pulsations and the Short-Term Efficacy of Lumbar Epidural Steroid Injection

Table 2

Correlation between the presence or absence of dural pulsation and postprocedure visual analogue scale (VAS) score evaluated by using the chi-squared​ test.

	Presence of pulsation (n = 31)	Absence of pulsation (n = 40)	value
Pre-VAS	7.3 ± 0.5	7.3 ± 0.5	0.901
Post-VAS (2 weeks)	3.3 ± 0.4	4.3 ± 1.7	0.03
Post-VAS (1 month)	3.2 ± 0.6	4.3 ± 1.9	0.03
value	0.002	0.002