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Τρίτη 26 Ιανουαρίου 2021

Long term outcomes with linear accelerator stereotactic radiosurgery for treatment of jugulotympanic paragangliomas

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Abstract

Background

Data supporting linear accelerator (linac) stereotactic radiosurgery (SRS) for jugulotympanic paragangliomas (JTPs) come from small series with minimal follow‐up. Herein, we report a large series of JTPs with extended follow‐up after frameless linac‐based SRS.

Methods

JTPs treated with linac‐based SRS from 2002 to 2019 with 1+ follow‐up image were reviewed for treatment failure (radiographic or clinical progression, or persistent symptoms after SRS requiring intervention) and late toxicities (CTCAE v5.0).

Results

Forty JTPs were identified; 30 were treated with a multifraction regimen. Median clinical and radiographic follow‐up was 79.7 (interquartile range [IQR] 31.7‐156.9) and 54.4 months (IQR 17.9‐105.1), respectively, with a median 4.5 follow‐up scans (IQR 2‐9). Seven‐year progression‐free survival (PFS) was 97.0% (95% confidence interval 91.1%‐100.0%). PFS was similar between single‐ and multifraction regimens (log rank P = .99). Toxicity was seen in 7.7% (no grade III).

Conclusions

With extended clinical and radiographic follow‐up, frameless linac‐based SRS provides excellent local control with mild toxicity <8%.

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Δημοσίευση σχολίου

Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com,

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