PainVision® Apparatus for Assessment of Efficacy of Pulsed Radiofrequency Combined with Pharmacological Therapy in the Treatment of Postherpetic Neuralgia and Correlations with Measurements

Table 2

Basic efficacy outcomes of patient on admission.

	Control group; ()	PRF group; ()	Difference; (SE)	95% CI
CPT (uA)			(2.72)		0.205
PEC (uA)			(11.01)		0.184
PR			0.03 (0.65)		0.96
PD-PP			3.62 (64.93)		0.956
VAS-PP (mm)			0.83 (2.82)		0.769
PD-BTP			0.01 (0.16)		0.945
VAS-BTP (mm)			(1.93)		0.882
SF-Mcgill
Sensory score			0.41 (0.24)		0.097
Effective score			(0.35)		0.901
Total score			0.42 (0.43)		0.337
VAS (mm)			0.83 (2.82)		0.769
PPI			(0.17)		0.451
NRSSIS			1.31 (0.20)		0.101

PRF: pulsed radiofrequency; CPT: current perception threshold; PEC: pain equivalent current; PR: pain ratio; PD: pain degree; PP: persistent pain; VAS: visual analog scale; BTP: breakthrough pain; SF-Mcgill: short form Mcgill pain questionnaire; PPI: present pain intensity; NRSSIS: numeric rate scale sleep interference score; SE: standard error; CI: confidence interval.