Pulsed Radiofrequency of the Trigeminal Ganglion for Treating Postherpetic Neuralgia of the Ophthalmic Branch

Table 3

Follow-up period and VAS scores (n = 32).

VAS	Presurgery	Follow-up period
		1 day	1 week	1 month	3 months
0–3 (no pain to mild pain)	0	30	30	30	30
≥4 (moderate to worst pain)	32	2	2	2	2

, pre-PRF treatment compared to follow-up period for 1 day, 1 week, 1 month, and 3 months.