Clinical Outcomes of Gamma Knife Radiosurgery in the Treatment of Patients with Trigeminal Neuralgia

Table 2

Clinical outcomes of patients undergoing multiple Gamma Knife treatments.

Author (year)	Clinical evaluation method	GKRS max retreatment dose (Gy)	Study endpoints	Results
			BNI score I	47.6%
Gellner et al. [32] (2008)	BNI	Mean: 74.3	BNI score II	28.6%
			BNI score III	23.8%
			BNI score I	34%
			BNI score II	17%
			BNI score IIIa	6%
Huang et al. [29] (2010)	BNI	Mean: 49	BNI score IIIb	8%
			1-y pain control rate	74%
			2-y pain control rate	71%
			3-y pain control rate	66%
			Facial numbness	17%
			Excellent pain relief	46%
			Good pain relief	24%
Aubuchon et al. [31] (2010)	EGFP	Mean: 84.4	Fair pain relief	14%
			Poor pain relief	16%
			Trigeminal nerve dysfunction	57%
			Excellent pain relief	43%
Huang et al. [28] (2006)	EGFP	Mean: 52	Good pain relief	18%
			Fair pain relief	7%
			Facial numbness	36%
			Marseille class I-II	43.5%
Kimball et al. [27] (2010)	Marseille	70	Marseille class III-IV	13%
			Marseille class V	43.5%
			Facial numbness	46%

BNI: Barrow Neurological Institute; EGFP: excellent-good-fair-poor; GKRS: Gamma Knife radiosurgery.