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

Table 3

Efficacy outcomes of patient at postoperative 48 hours (10 days from admission).

	Control group; ()	PRF group; ()	Difference; (SE)	95% CI
CPT (uA)			(1.47)		0.244
PEC (uA)			7.10 (4.74)		0.144
PR			0.97 (0.34)		0.007
PD-PP			103.1 (34.13)		0.005
VAS-PP (mm)			11.39 (2.34)		0.001
PD-BTP			117.78 (24.08)		0.001
VAS-BTP (mm)			10.98 (2.34)		0.001
SF-Mcgill
Sensory score			1.24 (0.19)		0.001
Effective score			0.70 (0.26)		0.011
Total score			2.00 (0.35)		0.001
VAS (mm)			11.39 (2.34)		0.001
PPI			1.02 (0.21)		0.001
NRSSIS			0.68 (0.17)		0.001

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.