Frameless gamma knife stereotactic radiosurgery for over two hundred vestibular schwannoma patients - a single institution experience.

At last follow-up, 75.9% demonstrated stable disease or partial response, and 7 patients (6.3%) developed progressive disease.

Of 76 patients with baseline serviceable hearing, 40 had audiometric follow-up; serviceable hearing preservation at 1 and 3 years was 71.1% and 33.8%, though 3-year data was limited.

No factors were significantly associated with tumor control or hearing preservation.