ESTRO 2024 - Abstract Book

S967

Clinical - CNS

ESTRO 2024

Results:

The median duration of post-treatment observation was 91 months, with a spectrum of 8 to 370 months. Complete obliteration was achieved in eight lesions, while three lesions saw partial obliteration. The median period leading to obliteration stood at 58 months, ranging from 48 to 240 months. Throughout the observation period, no fatalities were recorded. However, one patient did exhibit intracranial hemorrhage post-treatment. Notably, none of the patients developed symptomatic radiation-induced necrosis.

Conclusion:

LINAC-based SRS has proven to be a safe and effective therapeutic strategy for managing intracranial AVMs in pediatric patients, as evidenced by long-term tracking.

Keywords: AVM, Radiosurgery, SRS

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Bleeding Complications Following Radiosurgery for Cerebral Arteriovenous Malformations

Ahmed Gawish 1,2 , Luis Mohr 1 , Hilke Vorwerk 1,2 , Fabian Eberle 1,2 , Markus Schymalla 1,2 , Rita Engenhart-Cabillic 1,2 , Ulrike Theiß 1 , Sebastian Adeberg 1,2 1 University Hospital Marburg, Radiation oncology, Marburg, Germany. 2 Marburg Ion-Beam Therapy Center, Radiation oncology, Marburg, Germany

Purpose/Objective:

This research aims to identify the reasons behind post-treatment bleeding incidents following Linac-based radiosurgery (SRS) in patients with cerebral arteriovenous malformations (AVM).

Material/Methods:

Out of a cohort of 138 AVM patients, six experienced post-treatment bleeding prior to achieving complete obliteration. We delved into these patients' clinical profiles, angiographic structures, and radiosurgical dose measurements.

Results: