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Published on: April 17, 2012
Linear accelerator radiosurgery for nonvestibular schwannomas.
Matthew M Kimball1, Kelly D Foote, Frank J Bova
1Department of Neurosurgery, University of Florida, Gainesville, Florida 32610, USA.
Neurosurgery
|January 12, 2011
Summary
Linear accelerator radiosurgery provides effective tumor control for nonvestibular schwannomas with significantly lower risks than surgery. This treatment offers a safe and successful alternative for managing these rare brain tumors.
Area of Science:
- Neurosurgery
- Radiation Oncology
- Oncology
Background:
- Nonvestibular schwannomas are rare brain tumors.
- Surgical resection is a common treatment but carries significant risks.
- Alternative treatments with lower morbidity are needed.
Purpose of the Study:
- To evaluate the efficacy and safety of linear accelerator radiosurgery for nonvestibular schwannomas.
- To assess long-term tumor control and neurological outcomes.
- To compare radiosurgery outcomes with surgical resection morbidity.
Main Methods:
- Retrospective analysis of 49 patients treated with linear accelerator radiosurgery between 1989 and 2008.
- Median follow-up of 37 months.
- Tumor control and neurological deficits were key endpoints.
Main Results:
- 97% local tumor control at 1 year, decreasing to 83% at 5 years.
- 9% incidence of new cranial nerve deficits.
- 39% of patients experienced clinical improvement with no treatment-related mortality.
Conclusions:
- Linear accelerator radiosurgery is a safe and effective treatment for nonvestibular schwannomas.
- It offers favorable tumor control with lower morbidity compared to surgery.
- This study represents the largest series of its kind using linear accelerator radiosurgery.
