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[Radiotherapy for brain stem neoplasms in children].
O I Shcherbenko1, P A Parkhomenko, E V Govorina
1Russian Center for Roentgenology Research, Ministry of Health of the RF, Moscow.
Voprosy Onkologii
|February 28, 2001
Summary
Radiotherapy for pediatric brain stem tumors showed a 80% clinical benefit but no tumor shrinkage. Tumor growth returned within 3-8 months, with some patients experiencing radiation injury.
Area of Science:
- Pediatric Oncology
- Radiation Oncology
- Neuro-oncology
Context:
- Brain stem tumors are rare and aggressive pediatric malignancies.
- Radiotherapy is a primary treatment modality for these tumors.
- Evaluating treatment efficacy and toxicity is crucial for improving outcomes.
Purpose:
- To assess the immediate and short-term outcomes of radiotherapy in children with brain stem tumors.
- To evaluate the clinical effectiveness, tumor response, and toxicity of radiotherapy.
- To understand the long-term implications of radiation treatment in this population.
Summary:
- Twenty-four children with brain stem tumors received radiotherapy with adjuvant support.
- Eighty percent of patients showed a beneficial clinical effect, but magnetic resonance imaging (MRT) did not reveal tumor size reduction.
- Tumor relapse occurred 3-8 months post-radiotherapy, and clinical evidence of radiation injury was observed in 19 patients despite high radiation doses (60-72 Gy).
Impact:
- Radiotherapy can provide short-term clinical benefits in pediatric brain stem tumors.
- The lack of tumor shrinkage suggests limited efficacy of radiotherapy alone.
- Relapse and radiation injury highlight the need for improved therapeutic strategies and supportive care in managing these challenging tumors.