Supraorbital Nerve Radiofrequency for Severe Neuralgia Caused by Herpes Zoster Ophthalmicus

Table 2

Comparison of NRS, gabapentin (g), paracetamol oxycodone (mg), PGIC, and numbness before and after PRF (median (P₂₅, P₇₅)).

Parameters	Before intervention	1 day after intervention	30 days after intervention	90 days after intervention	180 days after intervention	360 days after intervention	P
NRS	6.0 (5.0, 6.5)	2.0 (2.0, 3.0)	2.0 (1.0, 2.0)	2.0 (1.0, 3.0)	2.0 (1.0, 3.0)	2.0 (1.0, 3.0)	<0.001
Gabapentin (g)	0.6 (0.6, 0.9)	0.6 (0.6, 0.9)	0.6 (0.0, 0.9)	0.6 (0.0, 0.9)	0.6 (0.0, 0.9)	0.0 (0.0, 0.9)	<0.001
Paracetamol oxycodone (mg)	0.0 (0.0, 5.0)	0.0 (0.0, 5.0)	0.0 (0.0, 0.0)	0.0 (0.0, 0.0)	0.0 (0.0, 0.0)	0.0 (0.0, 0.0)	<0.001
PGIC	4.0 (4.0, 5.0)	5.0 (5.0, 5.0)	5.0 (5.0, 5.0)	5.0 (5.0, 5.0)	5.0 (5.0, 6.0)	5.0 (5.0, 6.0)	<0.001
Numbness		3.0 (3.0, 4.0)	3.0 (2.0, 3.0)	2.0 (2.0, 3.0)	2.0 (2.0, 3.0)	2.0 (2.0, 3.0)	<0.001

vs. preoperation. vs. 1 month after the operation. NRS: numerical rating score; PGIC: patient general impression of change score.