Table 2

Patients’ preintervention characteristics; only sporadic vestibular schwannomas

Author publication yearIntervention included (no.)Male: FemaleAge (years)n. trigeminal deficit %n. facial deficit (%)†Useful hearing (%)‡Tumour size§ (mean mm)Previous treatment (%)
Pollock 200610MS: 36
RS: 46
19:17
27:19
48
54
0
0
0
0
61
65
14
12
No
No
Myrseth 200911MS: 28
RS: 60
12:16
36:24*
53
58
?
?
0
0
44
42
18
16
No
No
Pollock 199512MS: 40
RS: 47
18:22
23:24
51
62*
10
6
5
2
12
4
>20 mm: 18%
>20 mm: 29%
No
No
Myrseth 200515MS: 86
RS: 103
?
?
50
60*
20
12
1
1
2
10
>20 mm: 32%
>20 mm: 17%
No
No
Regis 200214MS: 110
RS: 100
M 35%
M 46%
52
61
55
20
?
2
?
49
KoosIII: 55%§
KoosIII: 34%
No
No
Karpinos 200213MS: 23
RS: 73
6:17
23:50
45
62*
30
17
26
10
30
24
>40 mm: 17*
>40 mm: 3%
26
14
  • MS: microsurgery, RS: radiosurgery.

  • *Significant (p<0.05).

  • †Percentage preserved, House-Brackmann grade 1–2.

  • ‡Useful hearing: AAO-HNS class A–B or Gardner–Robertson grade I–II.

  • §KoosIII: tumour occupying the cerebellopontine cistern without brainstem displacement.