Supraorbital Nerve Radiofrequency for Severe Neuralgia Caused by Herpes Zoster Ophthalmicus

Table 1

Characteristics of the patients.

Parameters		Mean ± SD or N (%)
Age (years)		73.6 ± 9.9
Sex, n (%)	Male	19 (61%)
Location, n (%)	Left	14 (45%)
Affected nerves, n (%)	I	26 (84%)
	I + II	4 (13%)
	I + II + III	1 (3%)
Disease course (after herpes healed), n (%)	≤1 month	12 (39%)
	>1 month	19 (61%)
Combined chronic diseases, n (%)	Hypertension	27 (87%)
	Diabetes	10 (32%)
Involved facial nerve, n (%)		1 (3%)
Frequency of preoperative nerve blocks		7.4 ± 1.5