Table 1 Characteristics in 657 patients with intracranial giant vestibular schwannomas (n = 657)

Age, year

 Range

12–80

 Average

46.8

Sex, N (%)

 Female

289 (44.0%)

 Male

368 (56.0%)

Extent of resection, N (%)

 Partial resection

2 (0.3%)

 Near-total resection

99 (15.1%)

 Gross total resection

556 (84.6%)

Managements during surgery

 Electrophysiological monitoring, N (%)

538 (81.9%)

 External ventricular drainage, N (%)

15 (2.3%)

 1/3 lateral cerebellum resection, N (%)

17 (2.6%)

 Follow-up range, month

6–191

 Average, month

59.6

 Availability, N (%)

566 (86.1%)