Πέμπτη 22 Φεβρουαρίου 2018

Long-term Outcomes After Radiosurgery for Temporal Bone Paragangliomas

imageObjectives To determine the long-term outcome after stereotactic radiosurgery (SRS) for temporal bone paragangliomas. Materials and Methods: We retrospectively reviewed the medical records of 11 patients with temporal bone paragangliomas (10 patients with a glomus jugulare tumor and 1 patient with a glomus tympanicum tumor) treated between January 1997 and July 2012 at the University of Florida with SRS to a median dose of 15 Gy in 1 fraction. Ten previously unirradiated patients received SRS as did 1 patient who received prior fractionated radiotherapy (FRT) and then received salvage SRS for a local recurrence. The major outcome endpoint was local control, meaning no further growth or shrinkage on follow-up computed tomography or magnetic resonance imaging scans. Results: The median follow-up time was 5.3 years. Two patients developed a local recurrence after SRS, including the patient who received salvage SRS after prior FRT. The overall local control rates at 5 and 10 years were both 81%. The cause-specific survival rates at 5 and 10 years were both 88%. The distant metastasis-free survival rates at 5 and 10 years were both 100%. The overall survival rates at 5 and 10 years were both 78%. There were no severe complications. Conclusions: SRS for benign head and neck paragangliomas is a safe and efficacious treatment associated with minimal morbidity. SRS is suitable for patients with skull base tumors

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