Efficacy of High-Voltage Pulsed Radiofrequency in Zoster-Associated Pain: A Meta-Analysis and Systematic Review

Table 1

Abbreviations used in the text.

Zoster-associated pain	ZAP
Randomized controlled trial	RCT
Visual analog	VAS
Postherpetic neuralgia	PHN
High-voltage pulsed radiofrequency	H-PRF
Standard pulsed radiofrequency	S-PRF
Numerical Rating Scale	NRS
36-Item Short Form Health Survey	SF-36
Sleep Quality Scale	SQS
The Pittsburgh Sleep Quality Index	PSQI
Day (d), week (w), month (m)	Pain duration