Stereotactic Radiosurgery for Glioblastoma

Area of Science:

• Neuro-oncology
• Radiation Oncology
• Neurosurgery

Background:

• Glioblastoma (GBM) is an aggressive, infiltrative primary brain tumor with poor prognosis.
• Conventional treatments (surgery, radiotherapy, chemotherapy) improve survival but GBM frequently recurs.
• Novel therapeutic strategies are needed to enhance survival rates for GBM patients.

Purpose of the Study:

• To review the current literature on stereotactic radiosurgery (SRS) for newly diagnosed and recurrent glioblastoma.
• To describe SRS techniques, patient selection criteria, and associated toxicities.
• To identify future research directions for SRS in GBM treatment.

Main Methods:

• Comprehensive literature review of studies investigating SRS for glioblastoma.
• Analysis of SRS techniques, including precision radiation delivery.
• Evaluation of clinical outcomes, local control, overall survival, and toxicities.

Main Results:

• SRS allows for escalated, precise radiation doses to GBM, minimizing damage to surrounding tissues.
• Some studies indicate improved local control and acceptable toxicity with SRS and chemotherapy in select GBM patients.
• The efficacy of SRS in improving overall survival for highly infiltrative GBM remains a subject of controversy.

Conclusions:

• SRS is a precise radiation technique with potential benefits for local control in GBM treatment.
• Further research is warranted to clarify the role of SRS in improving overall survival for glioblastoma patients.
• Future studies should focus on optimizing SRS techniques and patient selection for GBM.