Carotid Dosimetry and the Risk of Carotid Blowout Syndrome Following Re-irradiation with Head and Neck Stereotactic Body Radiation Therapy

Stereotactic body radiation therapy has emerged as a viable treatment option for recurrent head and neck cancers after prior irradiation, though carotid dose constraints are not defined. The maximum dose to 0.1cc, 1cc, 2cc of the carotid and the mean dose were analyzed for association with bleeding. No significant association was found between dose-volume parameters and risk of carotid bleeding, and no CBOS noted when D0.1cc was <47.6 Gy.

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