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

Table 4

The number of patients with different sleep quality levels, pre- and post-PRF (n = 32).

	Good sleep	Relatively satisfied sleep	Sleep after medicine	Poor sleep	Cannot sleep
Pre-PRF	0	6	9	15	2
Post-PRF	4	24	4	0	0

, pre-PRF surgery compared to follow-up period for 1 month.