Epilepsy Diagnosis Logo



Arteriovenous malformations are abnormal blood vessels that shunt blood directly from the arterial to the venous circulation. There is a risk of intracranial hemorrhage, estimated at 2-4% per year, which can be limited or catastrophic. Management is therefore directed at reducing mortality and morbidity (neurological and cognitive impairment) from hemorrhage.

Clinical context

Patients with arteriovenous malformation may present with hemorrhage, seizures, headache and/or progressive neurological / cognitive impairments. In infants, head size may be large, scalp veins may be prominent and there may be co-existing high output cardiac failure.

Feedback | Home | Contact Us | Privacy | Terms & Conditions of Use | Log In For Videos
Creative Commons License
This website is owned by the International League Against Epilepsy. Text on this website, last updated July 15, 2022,
is available under a Creative Commons Attribution-ShareAlike 4.0 International License,
EXCEPTING all videos and images, which remain copyrighted by the International League Against Epilepsy.