Professional overview
for arteriovenous malformation
Key takeouts
Gamma Knife radiosurgery has a 70-85% success rate after 3-5 years and is generally safe when treating small AVMs that are less than 3 cm.1
Results after Gamma Knife treatment are not immediate, and it generally takes 24 months in children and 30 months in adults before the effect is seen.2
For those patients with an arteriovenous malformation who are experiencing seizures before Gamma Knife radiosurgery, there is a reduction of between a third and two thirds in these pre-treatment seizures (28–66.7%).3
While Gamma Knife surgery is considered safe, there can be a small risk of bleeding (1.8-5%)4 while the abnormal blood vessel closes. However, this is the same as the rate in untreated patients.4
