Early-onset adverse events after stereotactic radiosurgery for jugular foramen schwannoma: a mid-term follow-up single-center review of 46 cases

Table 6 Radiosurgical treatment parameters according to tumor location

Characteristics	Dumbbell shaped tumor	Non-dumbbell shaped tumor	P value
Characteristics	n = 18	n = 28	P value
Median age at GKRS, years	49 (21–74)	51 (11–83)	0.210^a
Median tumour volume, cm³ (range)	5.1 (2.2–13.7)	2.8 (0.2–9.9)	0.008^a
Median follow-up period, months (range)	45 (9–136)	52 (19–135)	0.324^a
Median marginal dose, Gy (range)	13.0 (12.0–14.0)	13.0 (12.0–14.0)	0.149^a
Median maximal dose, Gy (range)	26.4 (25.2–28.7)	26.0 (24.0–28.7)	0.001^a

Values are expressed as medians (range)
GKRS gamma knife radiosurgery
^aStatistical testing was performed using the Mann–Whitney U test and Student’s t-test

ISSN: 1748-717X