Clinical outcomes following salvage Gamma Knife radiosurgery for recurrent glioblastoma

Table 1 Characteristics of patients with newly diagnosed glioblastoma multiforme

Ref.	rGBM patients	Median age (range)	Median KPS (range)	Median tumor volume (mL) (range)
Skeie et al[9]	32	51	73	12.4
	19	50	81	13.9
Park et al[10]	11	62 (46-72)	90 (80-100)	13.6 (1.2-45.1)
	44	64 (41-77)	90 (70-100)	9.5 (1.5-48.9)
Koga et al[28]	9	43 (17-64)	90 (80-90)	NR
	9	53 (27-79)	90 (80-90)
Elliott et al[11]	16	60 (35-69)	90 (80-100)	1.35 (0.37-6.2)
Pouratian et al[25]	26	60.7 (12.9-76.9)	80 (40-100)	21.3 (0.3-110.0)
Kida et al[21]	54	[Mean 52.4 (11-80)]	NR	(Mean: 29.0 mm) (7-48.3 mm)
1Kong et al[23]	65	NR	NR	NR
Kohshi et al[22]	11	NR	NR	NR
Hsieh et al[24]	26	(Mean 58.2)	(Mean: 70)	(Mean: 21.6)

¹Kong et al[23] (2008) includes data from 0-5 cases treated with LINAC. rGBM: Recurrent glioblastoma multiforme; KPS: Karnofsky Performance Status; NR: Data not reported or not segregated for rGBM patients.