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Stereotactic radiosurgery in children
Insights
Stereotactic radiosurgery shows promise for pediatric arteriovenous malformations (AVMs), with low toxicity. Its effectiveness for malignant brain tumors requires further investigation.
Area of Science:
- Neurosurgery
- Pediatric Oncology
- Radiation Oncology
Background:
- The application of stereotactic radiosurgery (SRS) in pediatric patient care is an evolving area of research.
- Limited data exists on the safety and efficacy of SRS for pediatric central nervous system (CNS) conditions.
Purpose of the Study:
- To evaluate the outcomes of Gamma Knife stereotactic radiosurgery in pediatric patients.
- To assess treatment-related toxicity and efficacy for arteriovenous malformations (AVMs) and malignant tumors in children.
Main Methods:
- Retrospective analysis of 33 pediatric patients (<21 years) treated with Gamma Knife SRS between 1991-1993.
- Review of treatment-related toxicity, AVM obliteration rates, and hemorrhage occurrence post-treatment.
- Assessment of outcomes for pediatric patients with malignant brain tumors.
Main Results:
- Low treatment-related toxicity was observed across the pediatric cohort.
- 10 out of 14 patients with AVMs showed partial or complete obliteration post-treatment (>1 month follow-up).
- No new hemorrhages occurred in pediatric AVM patients post-SRS; malignant tumor treatment was tolerated but often followed by disease progression.
Conclusions:
- Stereotactic radiosurgery is logistically feasible for pediatric patients.
- SRS appears appropriate for selected pediatric AVM cases, demonstrating positive obliteration rates and no new hemorrhages.
- The role of SRS in treating pediatric malignant brain tumors requires further definition and research.
Abstract:
The role of stereotactic radiosurgery in the treatment of pediatric patients is still being explored. We report the Gamma Knife treatment of 33 patients under the age of 21, at the University of California, San Francisco, between the years 1991 and 1993. Treatment-related toxicity has been low. 10/14 patients treated for arteriovenous malformation (AVM) with follow-up > 1 month have shown partial or complete AVM obliteration. No patient has had a new hemorrhage after AVM treatment. In children with malignant tumors, treatment was well tolerated, although most patients, ultimately, had progressive disease. Stereotactic radiosurgery is logistically possible in the pediatric population. Its use in selected patients with AVMs seems appropriate, although its role in the treatment of malignant brain tumors remains to be defined.