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Stereotactic radiosurgery in New Zealand
C R Lind1, S A Costello, S Mathur
1Dunedin Stereotactic Radiosurgery Unit, Dunedin Hospital.
The New Zealand Medical Journal
|June 9, 2001
Summary
Stereotactic radiosurgery effectively treats intracranial lesions, with high obliteration rates for arteriovenous malformations and tumor control for vestibular schwannomas. While generally safe, potential delayed side effects necessitate careful multidisciplinary review before treatment.
Area of Science:
- Neurosurgery
- Radiation Oncology
- Neurology
Background:
- Stereotactic radiosurgery (SRS) is an advanced treatment for various intracranial lesions.
- Dunedin Hospital initiated SRS to expand treatment options for neurological conditions.
Purpose of the Study:
- To detail the application of SRS for intracranial pathologies.
- To present the initial outcomes and experiences at Dunedin Hospital with SRS.
Main Methods:
- A retrospective analysis of a prospective computer database.
- Review of departmental clinical files for patient data.
Main Results:
- 78 SRS procedures were performed on 74 patients between 1994 and 1997.
- Arteriovenous malformations showed an 82% obliteration rate at two years.
- Vestibular schwannomas demonstrated no tumor progression in 11 patients over a mean of 12 months, with hearing preservation in most.
Conclusions:
- Dunedin's SRS outcomes for AVMs and vestibular schwannomas align with international reports.
- SRS is a rapid procedure with low immediate morbidity but requires awareness of potential delayed side effects.
- Multidisciplinary evaluation is crucial for optimal patient selection and management in SRS treatment planning.