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Related Experiment Video

Updated: Oct 13, 2025

Comprehensive Endovascular and Open Surgical Management of Cerebral Arteriovenous Malformations

Comprehensive Endovascular and Open Surgical Management of Cerebral Arteriovenous Malformations

Published on: October 20, 2017

Seizure Rates After Stereotactic Radiosurgery for Cerebral AVMs: A Single Center Study.

James Mooney¹, Nicholas Erickson¹, Arsalaan Salehani¹

¹Department of Neurosurgery, University of Alabama at Birmingham, Alabama, USA.

World Neurosurgery

|November 14, 2021

Summary

This summary is machine-generated.

Stereotactic radiosurgery (SRS) effectively treats arteriovenous malformations (AVMs), but seizures can occur post-treatment. Identifying factors predicting seizure presentation and outcomes is crucial for patient management.

Keywords:

Anti-epileptic drugs Arteriovenous malformation Post-radiosurgery hemorrhage Seizures Stereotactic radiosurgery

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Area of Science:

Neurology
Neurosurgery
Radiology

Background:

Arteriovenous malformations (AVMs) can cause seizures, impacting patient quality of life.
Stereotactic radiosurgery (SRS) is a treatment option for AVMs, with varying seizure control rates.
Understanding factors influencing seizure outcomes after SRS is essential for optimizing treatment.

Purpose of the Study:

To identify patient and AVM characteristics associated with seizure presentation before SRS.
To determine factors linked to seizure outcomes after SRS treatment for AVMs.
To analyze the incidence and predictors of de novo seizures post-SRS.

Main Methods:

Retrospective review of 210 patients treated with SRS for brain AVMs (2009-2019).
Statistical analyses (chi-squared, logistic regression) to identify factors associated with seizure presentation and post-SRS seizures.
Evaluation of seizure freedom rates and de novo seizure development.

Main Results:

Larger AVM size, superficial venous drainage, and parietal location were associated with preoperative seizures.
Among patients with seizures pre-SRS, 47% achieved seizure freedom post-treatment.
De novo seizures post-SRS occurred in 18% of previously seizure-free patients and were linked to prior craniotomy, post-treatment hemorrhage, and adverse effects.

Conclusions:

Seizures are a common manifestation of AVMs, and SRS can be effective in controlling them.
However, seizures can also be a complication of SRS, associated with adverse events like hemorrhage and requiring further intervention.
Predicting and managing seizure outcomes requires careful consideration of AVM characteristics and treatment-related factors.