Brain metastases: radiosurgery.
Handbook of clinical neurology(2018)
摘要
Stereotactic radiosurgery has revolutionized the management of brain metastases. It delivers focused, highly conformal, ionizing radiation to a tumor delineated using high-resolution imaging, with low toxicity to adjacent brain structures. Randomized controlled and prospective trials have demonstrated a survival advantage and high local control rates after stereotactic radiosurgery for metastatic disease to the central nervous system, including for up to 10 brain metastases. Its minimal-access nature makes it an attractive alternative to surgical resection. Furthermore, in addition to chemotherapy, newer targeted therapies and immunotherapies with improved side-effect profiles allow for the concurrent delivery of systemic therapy with radiosurgery, with possible additive or synergistic effects, expediting the treatment of both extracranial and intracranial disease. The modern management of brain metastasis patients should include consideration of routine staging and surveillance magnetic resonance imaging scans in patients with higher-stage cancer to detect intracranial metastases earlier and treat promptly with radiosurgery in order to prevent the development of neurologic symptoms and the need for surgical resection.
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关键词
brain metastases,gamma knife radiosurgery,immunotherapy,overall survival,stereotactic radiosurgery,targeted therapy,tumor local control
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