Stereotactic body radiotherapy reirradiation for recurrent epidural spinal metastases.

Published

Journal Article

PURPOSE: When patients show progression after conventional fractionated radiation for spine metastasis, further radiation and surgery may not be options. Stereotactic body radiotherapy (SBRT) has been successfully used in treatment of the spine and may be applicable in these cases. We report the use of SBRT for 60 consecutive patients (81 lesions) who had radiological progressive spine metastasis with epidural involvement after previous radiation for spine metastasis. METHODS AND MATERIALS: SBRT was used with fiducial and vertebral anatomy-based targeting. The radiation dose was prescribed based on the extent of spinal canal involvement; the dose was 8 Gy×3=24 Gy when the tumor did not touch the spinal cord and 5 to 6 Gyx5=25 to 30 Gy when the tumor abutted the cord. The cord surface received up to the prescription dose with no hot spots in the cord. RESULTS: The median overall survival was 11 months, and the median progression-free survival was 9 months. Overall, 93% of patients had stable or improved disease while 7% of patients showed disease progression; 65% of patients had pain relief. There was no significant toxicity other than fatigue. CONCLUSIONS: SBRT is feasible and appears to be an effective treatment modality for reirradiation after conventional palliative radiation fails for spine metastasis patients.

Full Text

Duke Authors

Cited Authors

  • Mahadevan, A; Floyd, S; Wong, E; Jeyapalan, S; Groff, M; Kasper, E

Published Date

  • December 1, 2011

Published In

Volume / Issue

  • 81 / 5

Start / End Page

  • 1500 - 1505

PubMed ID

  • 20950944

Pubmed Central ID

  • 20950944

Electronic International Standard Serial Number (EISSN)

  • 1879-355X

Digital Object Identifier (DOI)

  • 10.1016/j.ijrobp.2010.08.012

Language

  • eng

Conference Location

  • United States